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xfs: updates for 4.3-rc1

Browse source 
This update contains:
 o large rework of EFI/EFD lifecycle handling to fix log recovery corruption
   issues, crashes and unmount hangs
 o separate metadata UUID on disk to enable changing boot label UUID for v5
   filesystems
 o fixes for gcc miscompilation on certain platforms and optimisation levels
 o remote attribute allocation and recovery corruption fixes
 o inode lockdep annotation rework to fix bugs with too many subclasses
 o directory inode locking changes to prevent lockdep false positives
 o a handful of minor corruption fixes
 o various other small cleanups and bug fixes
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Merge tag 'xfs-for-linus-4.3' of git://git.kernel.org/pub/scm/linux/kernel/git/dgc/linux-xfs

Pull xfs updates from Dave Chinner:
 "There isn't a whole lot to this update - it's mostly bug fixes and
  they are spread pretty much all over XFS.  There are some corruption
  fixes, some fixes for log recovery, some fixes that prevent unount
  from hanging, a lockdep annotation rework for inode locking to prevent
  false positives and the usual random bunch of cleanups and minor
  improvements.

  Deatils:

   - large rework of EFI/EFD lifecycle handling to fix log recovery
     corruption issues, crashes and unmount hangs

   - separate metadata UUID on disk to enable changing boot label UUID
     for v5 filesystems

   - fixes for gcc miscompilation on certain platforms and optimisation
     levels

   - remote attribute allocation and recovery corruption fixes

   - inode lockdep annotation rework to fix bugs with too many
     subclasses

   - directory inode locking changes to prevent lockdep false positives

   - a handful of minor corruption fixes

   - various other small cleanups and bug fixes"

* tag 'xfs-for-linus-4.3' of git://git.kernel.org/pub/scm/linux/kernel/git/dgc/linux-xfs: (42 commits)
  xfs: fix error gotos in xfs_setattr_nonsize
  xfs: add mssing inode cache attempts counter increment
  xfs: return errors from partial I/O failures to files
  libxfs: bad magic number should set da block buffer error
  xfs: fix non-debug build warnings
  xfs: collapse allocsize and biosize mount option handling
  xfs: Fix file type directory corruption for btree directories
  xfs: lockdep annotations throw warnings on non-debug builds
  xfs: Fix uninitialized return value in xfs_alloc_fix_freelist()
  xfs: inode lockdep annotations broke non-lockdep build
  xfs: flush entire file on dio read/write to cached file
  xfs: Fix xfs_attr_leafblock definition
  libxfs: readahead of dir3 data blocks should use the read verifier
  xfs: stop holding ILOCK over filldir callbacks
  xfs: clean up inode lockdep annotations
  xfs: swap leaf buffer into path struct atomically during path shift
  xfs: relocate sparse inode mount warning
  xfs: dquots should be stamped with sb_meta_uuid
  xfs: log recovery needs to validate against sb_meta_uuid
  xfs: growfs not aware of sb_meta_uuid
  ...
This commit is contained in:
Linus Torvalds 2015-09-07 13:28:32 -07:00
parent 7d9071a095 5d54b8cdea
commit 77a78806c7
55 changed files with 862 additions and 479 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

2
fs/xfs/Makefile
View file

@ -33,6 +33,7 @@ xfs-y += $(addprefix libxfs/, \
xfs_attr.o \
xfs_attr_leaf.o \
xfs_attr_remote.o \
xfs_bit.o \
xfs_bmap.o \
xfs_bmap_btree.o \
xfs_btree.o \
@ -63,7 +64,6 @@ xfs-$(CONFIG_XFS_RT) += $(addprefix libxfs/, \
xfs-y += xfs_aops.o \
xfs_attr_inactive.o \
xfs_attr_list.o \
xfs_bit.o \
xfs_bmap_util.o \
xfs_buf.o \
xfs_dir2_readdir.o \

6
fs/xfs/libxfs/xfs_alloc.c
View file

@ -464,7 +464,7 @@ xfs_agfl_verify(
struct xfs_agfl *agfl = XFS_BUF_TO_AGFL(bp);
int i;
if (!uuid_equal(&agfl->agfl_uuid, &mp->m_sb.sb_uuid))
if (!uuid_equal(&agfl->agfl_uuid, &mp->m_sb.sb_meta_uuid))
return false;
if (be32_to_cpu(agfl->agfl_magicnum) != XFS_AGFL_MAGIC)
return false;
@ -1937,7 +1937,7 @@ xfs_alloc_fix_freelist(
struct xfs_alloc_arg targs; /* local allocation arguments */
xfs_agblock_t bno; /* freelist block */
xfs_extlen_t need; /* total blocks needed in freelist */
int error;
int error = 0;
if (!pag->pagf_init) {
error = xfs_alloc_read_agf(mp, tp, args->agno, flags, &agbp);
@ -2260,7 +2260,7 @@ xfs_agf_verify(
struct xfs_agf *agf = XFS_BUF_TO_AGF(bp);
if (xfs_sb_version_hascrc(&mp->m_sb) &&
!uuid_equal(&agf->agf_uuid, &mp->m_sb.sb_uuid))
!uuid_equal(&agf->agf_uuid, &mp->m_sb.sb_meta_uuid))
return false;
if (!(agf->agf_magicnum == cpu_to_be32(XFS_AGF_MAGIC) &&

4
fs/xfs/libxfs/xfs_alloc_btree.c
View file

@ -295,7 +295,7 @@ xfs_allocbt_verify(
case cpu_to_be32(XFS_ABTB_CRC_MAGIC):
if (!xfs_sb_version_hascrc(&mp->m_sb))
return false;
if (!uuid_equal(&block->bb_u.s.bb_uuid, &mp->m_sb.sb_uuid))
if (!uuid_equal(&block->bb_u.s.bb_uuid, &mp->m_sb.sb_meta_uuid))
return false;
if (block->bb_u.s.bb_blkno != cpu_to_be64(bp->b_bn))
return false;
@ -313,7 +313,7 @@ xfs_allocbt_verify(
case cpu_to_be32(XFS_ABTC_CRC_MAGIC):
if (!xfs_sb_version_hascrc(&mp->m_sb))
return false;
if (!uuid_equal(&block->bb_u.s.bb_uuid, &mp->m_sb.sb_uuid))
if (!uuid_equal(&block->bb_u.s.bb_uuid, &mp->m_sb.sb_meta_uuid))
return false;
if (block->bb_u.s.bb_blkno != cpu_to_be64(bp->b_bn))
return false;

2
fs/xfs/libxfs/xfs_attr.c
View file

@ -139,6 +139,8 @@ xfs_attr_get(
args.value = value;
args.valuelen = *valuelenp;
/* Entirely possible to look up a name which doesn't exist */
args.op_flags = XFS_DA_OP_OKNOENT;
lock_mode = xfs_ilock_attr_map_shared(ip);
if (!xfs_inode_hasattr(ip))

4
fs/xfs/libxfs/xfs_attr_leaf.c
View file

@ -262,7 +262,7 @@ xfs_attr3_leaf_verify(
if (ichdr.magic != XFS_ATTR3_LEAF_MAGIC)
return false;
if (!uuid_equal(&hdr3->info.uuid, &mp->m_sb.sb_uuid))
if (!uuid_equal(&hdr3->info.uuid, &mp->m_sb.sb_meta_uuid))
return false;
if (be64_to_cpu(hdr3->info.blkno) != bp->b_bn)
return false;
@ -1056,7 +1056,7 @@ xfs_attr3_leaf_create(
hdr3->blkno = cpu_to_be64(bp->b_bn);
hdr3->owner = cpu_to_be64(dp->i_ino);
uuid_copy(&hdr3->uuid, &mp->m_sb.sb_uuid);
uuid_copy(&hdr3->uuid, &mp->m_sb.sb_meta_uuid);
ichdr.freemap[0].base = sizeof(struct xfs_attr3_leaf_hdr);
} else {

9
fs/xfs/libxfs/xfs_attr_remote.c
View file

@ -100,7 +100,7 @@ xfs_attr3_rmt_verify(
return false;
if (rmt->rm_magic != cpu_to_be32(XFS_ATTR3_RMT_MAGIC))
return false;
if (!uuid_equal(&rmt->rm_uuid, &mp->m_sb.sb_uuid))
if (!uuid_equal(&rmt->rm_uuid, &mp->m_sb.sb_meta_uuid))
return false;
if (be64_to_cpu(rmt->rm_blkno) != bno)
return false;
@ -222,7 +222,7 @@ xfs_attr3_rmt_hdr_set(
rmt->rm_magic = cpu_to_be32(XFS_ATTR3_RMT_MAGIC);
rmt->rm_offset = cpu_to_be32(offset);
rmt->rm_bytes = cpu_to_be32(size);
uuid_copy(&rmt->rm_uuid, &mp->m_sb.sb_uuid);
uuid_copy(&rmt->rm_uuid, &mp->m_sb.sb_meta_uuid);
rmt->rm_owner = cpu_to_be64(ino);
rmt->rm_blkno = cpu_to_be64(bno);
@ -618,9 +618,8 @@ xfs_attr_rmtval_remove(
xfs_bmap_init(args->flist, args->firstblock);
error = xfs_bunmapi(args->trans, args->dp, lblkno, blkcnt,
XFS_BMAPI_ATTRFORK | XFS_BMAPI_METADATA,
1, args->firstblock, args->flist,
&done);
XFS_BMAPI_ATTRFORK, 1, args->firstblock,
args->flist, &done);
if (!error) {
error = xfs_bmap_finish(&args->trans, args->flist,
&committed);

0
fs/xfs/xfs_bit.c → fs/xfs/libxfs/xfs_bit.c
View file

1
fs/xfs/libxfs/xfs_bmap.c
View file

@ -5945,6 +5945,7 @@ xfs_bmap_split_extent(
return xfs_trans_commit(tp);
out:
xfs_bmap_cancel(&free_list);
xfs_trans_cancel(tp);
return error;
}

5
fs/xfs/libxfs/xfs_bmap_btree.c
View file

@ -349,7 +349,8 @@ xfs_bmbt_to_bmdr(
if (xfs_sb_version_hascrc(&mp->m_sb)) {
ASSERT(rblock->bb_magic == cpu_to_be32(XFS_BMAP_CRC_MAGIC));
ASSERT(uuid_equal(&rblock->bb_u.l.bb_uuid, &mp->m_sb.sb_uuid));
ASSERT(uuid_equal(&rblock->bb_u.l.bb_uuid,
&mp->m_sb.sb_meta_uuid));
ASSERT(rblock->bb_u.l.bb_blkno ==
cpu_to_be64(XFS_BUF_DADDR_NULL));
} else
@ -647,7 +648,7 @@ xfs_bmbt_verify(
case cpu_to_be32(XFS_BMAP_CRC_MAGIC):
if (!xfs_sb_version_hascrc(&mp->m_sb))
return false;
if (!uuid_equal(&block->bb_u.l.bb_uuid, &mp->m_sb.sb_uuid))
if (!uuid_equal(&block->bb_u.l.bb_uuid, &mp->m_sb.sb_meta_uuid))
return false;
if (be64_to_cpu(block->bb_u.l.bb_blkno) != bp->b_bn)
return false;

10
fs/xfs/libxfs/xfs_btree.c
View file

@ -65,7 +65,8 @@ xfs_btree_check_lblock(
if (xfs_sb_version_hascrc(&mp->m_sb)) {
lblock_ok = lblock_ok &&
uuid_equal(&block->bb_u.l.bb_uuid, &mp->m_sb.sb_uuid) &&
uuid_equal(&block->bb_u.l.bb_uuid,
&mp->m_sb.sb_meta_uuid) &&
block->bb_u.l.bb_blkno == cpu_to_be64(
bp ? bp->b_bn : XFS_BUF_DADDR_NULL);
}
@ -115,7 +116,8 @@ xfs_btree_check_sblock(
if (xfs_sb_version_hascrc(&mp->m_sb)) {
sblock_ok = sblock_ok &&
uuid_equal(&block->bb_u.s.bb_uuid, &mp->m_sb.sb_uuid) &&
uuid_equal(&block->bb_u.s.bb_uuid,
&mp->m_sb.sb_meta_uuid) &&
block->bb_u.s.bb_blkno == cpu_to_be64(
bp ? bp->b_bn : XFS_BUF_DADDR_NULL);
}
@ -1000,7 +1002,7 @@ xfs_btree_init_block_int(
if (flags & XFS_BTREE_CRC_BLOCKS) {
buf->bb_u.l.bb_blkno = cpu_to_be64(blkno);
buf->bb_u.l.bb_owner = cpu_to_be64(owner);
uuid_copy(&buf->bb_u.l.bb_uuid, &mp->m_sb.sb_uuid);
uuid_copy(&buf->bb_u.l.bb_uuid, &mp->m_sb.sb_meta_uuid);
buf->bb_u.l.bb_pad = 0;
buf->bb_u.l.bb_lsn = 0;
}
@ -1013,7 +1015,7 @@ xfs_btree_init_block_int(
if (flags & XFS_BTREE_CRC_BLOCKS) {
buf->bb_u.s.bb_blkno = cpu_to_be64(blkno);
buf->bb_u.s.bb_owner = cpu_to_be32(__owner);
uuid_copy(&buf->bb_u.s.bb_uuid, &mp->m_sb.sb_uuid);
uuid_copy(&buf->bb_u.s.bb_uuid, &mp->m_sb.sb_meta_uuid);
buf->bb_u.s.bb_lsn = 0;
}
}

34
fs/xfs/libxfs/xfs_da_btree.c
View file

@ -146,7 +146,7 @@ xfs_da3_node_verify(
if (ichdr.magic != XFS_DA3_NODE_MAGIC)
return false;
if (!uuid_equal(&hdr3->info.uuid, &mp->m_sb.sb_uuid))
if (!uuid_equal(&hdr3->info.uuid, &mp->m_sb.sb_meta_uuid))
return false;
if (be64_to_cpu(hdr3->info.blkno) != bp->b_bn)
return false;
@ -233,6 +233,7 @@ xfs_da3_node_read_verify(
bp->b_ops->verify_read(bp);
return;
default:
xfs_buf_ioerror(bp, -EFSCORRUPTED);
break;
}
@ -324,7 +325,7 @@ xfs_da3_node_create(
ichdr.magic = XFS_DA3_NODE_MAGIC;
hdr3->info.blkno = cpu_to_be64(bp->b_bn);
hdr3->info.owner = cpu_to_be64(args->dp->i_ino);
uuid_copy(&hdr3->info.uuid, &mp->m_sb.sb_uuid);
uuid_copy(&hdr3->info.uuid, &mp->m_sb.sb_meta_uuid);
} else {
ichdr.magic = XFS_DA_NODE_MAGIC;
}
@ -1822,6 +1823,7 @@ xfs_da3_path_shift(
struct xfs_da_args *args;
struct xfs_da_node_entry *btree;
struct xfs_da3_icnode_hdr nodehdr;
struct xfs_buf *bp;
xfs_dablk_t blkno = 0;
int level;
int error;
@ -1866,20 +1868,24 @@ xfs_da3_path_shift(
*/
for (blk++, level++; level < path->active; blk++, level++) {
/*
* Release the old block.
* (if it's dirty, trans won't actually let go)
* Read the next child block into a local buffer.
*/
error = xfs_da3_node_read(args->trans, dp, blkno, -1, &bp,
args->whichfork);
if (error)
return error;
/*
* Release the old block (if it's dirty, the trans doesn't
* actually let go) and swap the local buffer into the path
* structure. This ensures failure of the above read doesn't set
* a NULL buffer in an active slot in the path.
*/
if (release)
xfs_trans_brelse(args->trans, blk->bp);
/*
* Read the next child block.
*/
blk->blkno = blkno;
error = xfs_da3_node_read(args->trans, dp, blkno, -1,
&blk->bp, args->whichfork);
if (error)
return error;
blk->bp = bp;
info = blk->bp->b_addr;
ASSERT(info->magic == cpu_to_be16(XFS_DA_NODE_MAGIC) ||
info->magic == cpu_to_be16(XFS_DA3_NODE_MAGIC) ||
@ -2351,8 +2357,8 @@ xfs_da_shrink_inode(
* the last block to the place we want to kill.
*/
error = xfs_bunmapi(tp, dp, dead_blkno, count,
xfs_bmapi_aflag(w)|XFS_BMAPI_METADATA,
0, args->firstblock, args->flist, &done);
xfs_bmapi_aflag(w), 0, args->firstblock,
args->flist, &done);
if (error == -ENOSPC) {
if (w != XFS_DATA_FORK)
break;

11
fs/xfs/libxfs/xfs_da_format.h
View file

@ -680,8 +680,15 @@ typedef struct xfs_attr_leaf_name_remote {
typedef struct xfs_attr_leafblock {
xfs_attr_leaf_hdr_t hdr; /* constant-structure header block */
xfs_attr_leaf_entry_t entries[1]; /* sorted on key, not name */
xfs_attr_leaf_name_local_t namelist; /* grows from bottom of buf */
xfs_attr_leaf_name_remote_t valuelist; /* grows from bottom of buf */
/*
* The rest of the block contains the following structures after the
* leaf entries, growing from the bottom up. The variables are never
* referenced and definining them can actually make gcc optimize away
* accesses to the 'entries' array above index 0 so don't do that.
*
* xfs_attr_leaf_name_local_t namelist;
* xfs_attr_leaf_name_remote_t valuelist;
*/
} xfs_attr_leafblock_t;
/*

36
fs/xfs/libxfs/xfs_dir2.c
View file

@ -362,6 +362,7 @@ xfs_dir_lookup(
struct xfs_da_args *args;
int rval;
int v; /* type-checking value */
int lock_mode;
ASSERT(S_ISDIR(dp->i_d.di_mode));
XFS_STATS_INC(xs_dir_lookup);
@ -387,6 +388,7 @@ xfs_dir_lookup(
if (ci_name)
args->op_flags |= XFS_DA_OP_CILOOKUP;
lock_mode = xfs_ilock_data_map_shared(dp);
if (dp->i_d.di_format == XFS_DINODE_FMT_LOCAL) {
rval = xfs_dir2_sf_lookup(args);
goto out_check_rval;
@ -419,6 +421,7 @@ xfs_dir_lookup(
}
}
out_free:
xfs_iunlock(dp, lock_mode);
kmem_free(args);
return rval;
}
@ -674,25 +677,22 @@ xfs_dir2_shrink_inode(
mp = dp->i_mount;
tp = args->trans;
da = xfs_dir2_db_to_da(args->geo, db);
/*
* Unmap the fsblock(s).
*/
if ((error = xfs_bunmapi(tp, dp, da, args->geo->fsbcount,
XFS_BMAPI_METADATA, 0, args->firstblock, args->flist,
&done))) {
/* Unmap the fsblock(s). */
error = xfs_bunmapi(tp, dp, da, args->geo->fsbcount, 0, 0,
args->firstblock, args->flist, &done);
if (error) {
/*
* ENOSPC actually can happen if we're in a removename with
* no space reservation, and the resulting block removal
* would cause a bmap btree split or conversion from extents
* to btree. This can only happen for un-fragmented
* directory blocks, since you need to be punching out
* the middle of an extent.
* In this case we need to leave the block in the file,
* and not binval it.
* So the block has to be in a consistent empty state
* and appropriately logged.
* We don't free up the buffer, the caller can tell it
* hasn't happened since it got an error back.
* ENOSPC actually can happen if we're in a removename with no
* space reservation, and the resulting block removal would
* cause a bmap btree split or conversion from extents to btree.
* This can only happen for un-fragmented directory blocks,
* since you need to be punching out the middle of an extent.
* In this case we need to leave the block in the file, and not
* binval it. So the block has to be in a consistent empty
* state and appropriately logged. We don't free up the buffer,
* the caller can tell it hasn't happened since it got an error
* back.
*/
return error;
}

4
fs/xfs/libxfs/xfs_dir2_block.c
View file

@ -67,7 +67,7 @@ xfs_dir3_block_verify(
if (xfs_sb_version_hascrc(&mp->m_sb)) {
if (hdr3->magic != cpu_to_be32(XFS_DIR3_BLOCK_MAGIC))
return false;
if (!uuid_equal(&hdr3->uuid, &mp->m_sb.sb_uuid))
if (!uuid_equal(&hdr3->uuid, &mp->m_sb.sb_meta_uuid))
return false;
if (be64_to_cpu(hdr3->blkno) != bp->b_bn)
return false;
@ -157,7 +157,7 @@ xfs_dir3_block_init(
hdr3->magic = cpu_to_be32(XFS_DIR3_BLOCK_MAGIC);
hdr3->blkno = cpu_to_be64(bp->b_bn);
hdr3->owner = cpu_to_be64(dp->i_ino);
uuid_copy(&hdr3->uuid, &mp->m_sb.sb_uuid);
uuid_copy(&hdr3->uuid, &mp->m_sb.sb_meta_uuid);
return;
}

7
fs/xfs/libxfs/xfs_dir2_data.c
View file

@ -220,7 +220,7 @@ xfs_dir3_data_verify(
if (xfs_sb_version_hascrc(&mp->m_sb)) {
if (hdr3->magic != cpu_to_be32(XFS_DIR3_DATA_MAGIC))
return false;
if (!uuid_equal(&hdr3->uuid, &mp->m_sb.sb_uuid))
if (!uuid_equal(&hdr3->uuid, &mp->m_sb.sb_meta_uuid))
return false;
if (be64_to_cpu(hdr3->blkno) != bp->b_bn)
return false;
@ -252,7 +252,8 @@ xfs_dir3_data_reada_verify(
return;
case cpu_to_be32(XFS_DIR2_DATA_MAGIC):
case cpu_to_be32(XFS_DIR3_DATA_MAGIC):
xfs_dir3_data_verify(bp);
bp->b_ops = &xfs_dir3_data_buf_ops;
bp->b_ops->verify_read(bp);
return;
default:
xfs_buf_ioerror(bp, -EFSCORRUPTED);
@ -604,7 +605,7 @@ xfs_dir3_data_init(
hdr3->magic = cpu_to_be32(XFS_DIR3_DATA_MAGIC);
hdr3->blkno = cpu_to_be64(bp->b_bn);
hdr3->owner = cpu_to_be64(dp->i_ino);
uuid_copy(&hdr3->uuid, &mp->m_sb.sb_uuid);
uuid_copy(&hdr3->uuid, &mp->m_sb.sb_meta_uuid);
} else
hdr->magic = cpu_to_be32(XFS_DIR2_DATA_MAGIC);

4
fs/xfs/libxfs/xfs_dir2_leaf.c
View file

@ -160,7 +160,7 @@ xfs_dir3_leaf_verify(
if (leaf3->info.hdr.magic != cpu_to_be16(magic3))
return false;
if (!uuid_equal(&leaf3->info.uuid, &mp->m_sb.sb_uuid))
if (!uuid_equal(&leaf3->info.uuid, &mp->m_sb.sb_meta_uuid))
return false;
if (be64_to_cpu(leaf3->info.blkno) != bp->b_bn)
return false;
@ -310,7 +310,7 @@ xfs_dir3_leaf_init(
: cpu_to_be16(XFS_DIR3_LEAFN_MAGIC);
leaf3->info.blkno = cpu_to_be64(bp->b_bn);
leaf3->info.owner = cpu_to_be64(owner);
uuid_copy(&leaf3->info.uuid, &mp->m_sb.sb_uuid);
uuid_copy(&leaf3->info.uuid, &mp->m_sb.sb_meta_uuid);
} else {
memset(leaf, 0, sizeof(*leaf));
leaf->hdr.info.magic = cpu_to_be16(type);

17
fs/xfs/libxfs/xfs_dir2_node.c
View file

@ -93,7 +93,7 @@ xfs_dir3_free_verify(
if (hdr3->magic != cpu_to_be32(XFS_DIR3_FREE_MAGIC))
return false;
if (!uuid_equal(&hdr3->uuid, &mp->m_sb.sb_uuid))
if (!uuid_equal(&hdr3->uuid, &mp->m_sb.sb_meta_uuid))
return false;
if (be64_to_cpu(hdr3->blkno) != bp->b_bn)
return false;
@ -226,7 +226,7 @@ xfs_dir3_free_get_buf(
hdr3->hdr.blkno = cpu_to_be64(bp->b_bn);
hdr3->hdr.owner = cpu_to_be64(dp->i_ino);
uuid_copy(&hdr3->hdr.uuid, &mp->m_sb.sb_uuid);
uuid_copy(&hdr3->hdr.uuid, &mp->m_sb.sb_meta_uuid);
} else
hdr.magic = XFS_DIR2_FREE_MAGIC;
dp->d_ops->free_hdr_to_disk(bp->b_addr, &hdr);
@ -1845,8 +1845,7 @@ xfs_dir2_node_addname_int(
if (dp->d_ops->db_to_fdb(args->geo, dbno) != fbno) {
xfs_alert(mp,
"%s: dir ino %llu needed freesp block %lld for\n"
" data block %lld, got %lld ifbno %llu lastfbno %d",
"%s: dir ino %llu needed freesp block %lld for data block %lld, got %lld ifbno %llu lastfbno %d",
__func__, (unsigned long long)dp->i_ino,
(long long)dp->d_ops->db_to_fdb(
args->geo, dbno),
@ -2132,6 +2131,7 @@ xfs_dir2_node_replace(
int error; /* error return value */
int i; /* btree level */
xfs_ino_t inum; /* new inode number */
int ftype; /* new file type */
xfs_dir2_leaf_t *leaf; /* leaf structure */
xfs_dir2_leaf_entry_t *lep; /* leaf entry being changed */
int rval; /* internal return value */
@ -2145,7 +2145,14 @@ xfs_dir2_node_replace(
state = xfs_da_state_alloc();
state->args = args;
state->mp = args->dp->i_mount;
/*
* We have to save new inode number and ftype since
* xfs_da3_node_lookup_int() is going to overwrite them
*/
inum = args->inumber;
ftype = args->filetype;
/*
* Lookup the entry to change in the btree.
*/
@ -2183,7 +2190,7 @@ xfs_dir2_node_replace(
* Fill in the new inode number and log the entry.
*/
dep->inumber = cpu_to_be64(inum);
args->dp->d_ops->data_put_ftype(dep, args->filetype);
args->dp->d_ops->data_put_ftype(dep, ftype);
xfs_dir2_data_log_entry(args, state->extrablk.bp, dep);
rval = 0;
}

4
fs/xfs/libxfs/xfs_dquot_buf.c
View file

@ -163,7 +163,7 @@ xfs_dqcheck(
d->dd_diskdq.d_id = cpu_to_be32(id);
if (xfs_sb_version_hascrc(&mp->m_sb)) {
uuid_copy(&d->dd_uuid, &mp->m_sb.sb_uuid);
uuid_copy(&d->dd_uuid, &mp->m_sb.sb_meta_uuid);
xfs_update_cksum((char *)d, sizeof(struct xfs_dqblk),
XFS_DQUOT_CRC_OFF);
}
@ -198,7 +198,7 @@ xfs_dquot_buf_verify_crc(
if (!xfs_verify_cksum((char *)d, sizeof(struct xfs_dqblk),
XFS_DQUOT_CRC_OFF))
return false;
if (!uuid_equal(&d->dd_uuid, &mp->m_sb.sb_uuid))
if (!uuid_equal(&d->dd_uuid, &mp->m_sb.sb_meta_uuid))
return false;
}
return true;

22
fs/xfs/libxfs/xfs_format.h
View file

@ -100,7 +100,7 @@ typedef struct xfs_sb {
xfs_rfsblock_t sb_dblocks; /* number of data blocks */
xfs_rfsblock_t sb_rblocks; /* number of realtime blocks */
xfs_rtblock_t sb_rextents; /* number of realtime extents */
uuid_t sb_uuid; /* file system unique id */
uuid_t sb_uuid; /* user-visible file system unique id */
xfs_fsblock_t sb_logstart; /* starting block of log if internal */
xfs_ino_t sb_rootino; /* root inode number */
xfs_ino_t sb_rbmino; /* bitmap inode for realtime extents */
@ -174,6 +174,7 @@ typedef struct xfs_sb {
xfs_ino_t sb_pquotino; /* project quota inode */
xfs_lsn_t sb_lsn; /* last write sequence */
uuid_t sb_meta_uuid; /* metadata file system unique id */
/* must be padded to 64 bit alignment */
} xfs_sb_t;
@ -190,7 +191,7 @@ typedef struct xfs_dsb {
__be64 sb_dblocks; /* number of data blocks */
__be64 sb_rblocks; /* number of realtime blocks */
__be64 sb_rextents; /* number of realtime extents */
uuid_t sb_uuid; /* file system unique id */
uuid_t sb_uuid; /* user-visible file system unique id */
__be64 sb_logstart; /* starting block of log if internal */
__be64 sb_rootino; /* root inode number */
__be64 sb_rbmino; /* bitmap inode for realtime extents */
@ -260,6 +261,7 @@ typedef struct xfs_dsb {
__be64 sb_pquotino; /* project quota inode */
__be64 sb_lsn; /* last write sequence */
uuid_t sb_meta_uuid; /* metadata file system unique id */
/* must be padded to 64 bit alignment */
} xfs_dsb_t;
@ -458,9 +460,11 @@ xfs_sb_has_ro_compat_feature(
#define XFS_SB_FEAT_INCOMPAT_FTYPE (1 << 0) /* filetype in dirent */
#define XFS_SB_FEAT_INCOMPAT_SPINODES (1 << 1) /* sparse inode chunks */
#define XFS_SB_FEAT_INCOMPAT_META_UUID (1 << 2) /* metadata UUID */
#define XFS_SB_FEAT_INCOMPAT_ALL \
(XFS_SB_FEAT_INCOMPAT_FTYPE| \
XFS_SB_FEAT_INCOMPAT_SPINODES)
XFS_SB_FEAT_INCOMPAT_SPINODES| \
XFS_SB_FEAT_INCOMPAT_META_UUID)
#define XFS_SB_FEAT_INCOMPAT_UNKNOWN ~XFS_SB_FEAT_INCOMPAT_ALL
static inline bool
@ -514,6 +518,18 @@ static inline bool xfs_sb_version_hassparseinodes(struct xfs_sb *sbp)
xfs_sb_has_incompat_feature(sbp, XFS_SB_FEAT_INCOMPAT_SPINODES);
}
/*
* XFS_SB_FEAT_INCOMPAT_META_UUID indicates that the metadata UUID
* is stored separately from the user-visible UUID; this allows the
* user-visible UUID to be changed on V5 filesystems which have a
* filesystem UUID stamped into every piece of metadata.
*/
static inline bool xfs_sb_version_hasmetauuid(struct xfs_sb *sbp)
{
return (XFS_SB_VERSION_NUM(sbp) == XFS_SB_VERSION_5) &&
(sbp->sb_features_incompat & XFS_SB_FEAT_INCOMPAT_META_UUID);
}
/*
* end of superblock version macros
*/

7
fs/xfs/libxfs/xfs_ialloc.c
View file

@ -338,7 +338,8 @@ xfs_ialloc_inode_init(
if (version == 3) {
free->di_ino = cpu_to_be64(ino);
ino++;
uuid_copy(&free->di_uuid, &mp->m_sb.sb_uuid);
uuid_copy(&free->di_uuid,
&mp->m_sb.sb_meta_uuid);
xfs_dinode_calc_crc(mp, free);
} else if (tp) {
/* just log the inode core */
@ -2232,7 +2233,7 @@ xfs_imap_lookup(
}
xfs_trans_brelse(tp, agbp);
xfs_btree_del_cursor(cur, XFS_BTREE_NOERROR);
xfs_btree_del_cursor(cur, error ? XFS_BTREE_ERROR : XFS_BTREE_NOERROR);
if (error)
return error;
@ -2500,7 +2501,7 @@ xfs_agi_verify(
struct xfs_agi *agi = XFS_BUF_TO_AGI(bp);
if (xfs_sb_version_hascrc(&mp->m_sb) &&
!uuid_equal(&agi->agi_uuid, &mp->m_sb.sb_uuid))
!uuid_equal(&agi->agi_uuid, &mp->m_sb.sb_meta_uuid))
return false;
/*
* Validate the magic number of the agi block.

2
fs/xfs/libxfs/xfs_ialloc_btree.c
View file

@ -239,7 +239,7 @@ xfs_inobt_verify(
case cpu_to_be32(XFS_FIBT_CRC_MAGIC):
if (!xfs_sb_version_hascrc(&mp->m_sb))
return false;
if (!uuid_equal(&block->bb_u.s.bb_uuid, &mp->m_sb.sb_uuid))
if (!uuid_equal(&block->bb_u.s.bb_uuid, &mp->m_sb.sb_meta_uuid))
return false;
if (block->bb_u.s.bb_blkno != cpu_to_be64(bp->b_bn))
return false;

4
fs/xfs/libxfs/xfs_inode_buf.c
View file

@ -304,7 +304,7 @@ xfs_dinode_verify(
return false;
if (be64_to_cpu(dip->di_ino) != ip->i_ino)
return false;
if (!uuid_equal(&dip->di_uuid, &mp->m_sb.sb_uuid))
if (!uuid_equal(&dip->di_uuid, &mp->m_sb.sb_meta_uuid))
return false;
return true;
}
@ -366,7 +366,7 @@ xfs_iread(
if (xfs_sb_version_hascrc(&mp->m_sb)) {
ip->i_d.di_version = 3;
ip->i_d.di_ino = ip->i_ino;
uuid_copy(&ip->i_d.di_uuid, &mp->m_sb.sb_uuid);
uuid_copy(&ip->i_d.di_uuid, &mp->m_sb.sb_meta_uuid);
} else
ip->i_d.di_version = 2;
return 0;

27
fs/xfs/libxfs/xfs_sb.c
View file

@ -131,10 +131,11 @@ xfs_mount_validate_sb(
if (xfs_sb_has_compat_feature(sbp,
XFS_SB_FEAT_COMPAT_UNKNOWN)) {
xfs_warn(mp,
"Superblock has unknown compatible features (0x%x) enabled.\n"
"Using a more recent kernel is recommended.",
"Superblock has unknown compatible features (0x%x) enabled.",
(sbp->sb_features_compat &
XFS_SB_FEAT_COMPAT_UNKNOWN));
xfs_warn(mp,
"Using a more recent kernel is recommended.");
}
if (xfs_sb_has_ro_compat_feature(sbp,
@ -145,18 +146,21 @@ xfs_mount_validate_sb(
XFS_SB_FEAT_RO_COMPAT_UNKNOWN));
if (!(mp->m_flags & XFS_MOUNT_RDONLY)) {
xfs_warn(mp,
"Attempted to mount read-only compatible filesystem read-write.\n"
"Attempted to mount read-only compatible filesystem read-write.");
xfs_warn(mp,
"Filesystem can only be safely mounted read only.");
return -EINVAL;
}
}
if (xfs_sb_has_incompat_feature(sbp,
XFS_SB_FEAT_INCOMPAT_UNKNOWN)) {
xfs_warn(mp,
"Superblock has unknown incompatible features (0x%x) enabled.\n"
"Filesystem can not be safely mounted by this kernel.",
"Superblock has unknown incompatible features (0x%x) enabled.",
(sbp->sb_features_incompat &
XFS_SB_FEAT_INCOMPAT_UNKNOWN));
xfs_warn(mp,
"Filesystem can not be safely mounted by this kernel.");
return -EINVAL;
}
}
@ -182,9 +186,6 @@ xfs_mount_validate_sb(
if (xfs_sb_version_hassparseinodes(sbp)) {
uint32_t align;
xfs_alert(mp,
"EXPERIMENTAL sparse inode feature enabled. Use at your own risk!");
align = XFS_INODES_PER_CHUNK * sbp->sb_inodesize
>> sbp->sb_blocklog;
if (sbp->sb_inoalignmt != align) {
@ -398,6 +399,14 @@ __xfs_sb_from_disk(
to->sb_spino_align = be32_to_cpu(from->sb_spino_align);
to->sb_pquotino = be64_to_cpu(from->sb_pquotino);
to->sb_lsn = be64_to_cpu(from->sb_lsn);
/*
* sb_meta_uuid is only on disk if it differs from sb_uuid and the
* feature flag is set; if not set we keep it only in memory.
*/
if (xfs_sb_version_hasmetauuid(to))
uuid_copy(&to->sb_meta_uuid, &from->sb_meta_uuid);
else
uuid_copy(&to->sb_meta_uuid, &from->sb_uuid);
/* Convert on-disk flags to in-memory flags? */
if (convert_xquota)
xfs_sb_quota_from_disk(to);
@ -539,6 +548,8 @@ xfs_sb_to_disk(
cpu_to_be32(from->sb_features_log_incompat);
to->sb_spino_align = cpu_to_be32(from->sb_spino_align);
to->sb_lsn = cpu_to_be64(from->sb_lsn);
if (xfs_sb_version_hasmetauuid(from))
uuid_copy(&to->sb_meta_uuid, &from->sb_meta_uuid);
}
}

4
fs/xfs/libxfs/xfs_symlink_remote.c
View file

@ -63,7 +63,7 @@ xfs_symlink_hdr_set(
dsl->sl_magic = cpu_to_be32(XFS_SYMLINK_MAGIC);
dsl->sl_offset = cpu_to_be32(offset);
dsl->sl_bytes = cpu_to_be32(size);
uuid_copy(&dsl->sl_uuid, &mp->m_sb.sb_uuid);
uuid_copy(&dsl->sl_uuid, &mp->m_sb.sb_meta_uuid);
dsl->sl_owner = cpu_to_be64(ino);
dsl->sl_blkno = cpu_to_be64(bp->b_bn);
bp->b_ops = &xfs_symlink_buf_ops;
@ -107,7 +107,7 @@ xfs_symlink_verify(
return false;
if (dsl->sl_magic != cpu_to_be32(XFS_SYMLINK_MAGIC))
return false;
if (!uuid_equal(&dsl->sl_uuid, &mp->m_sb.sb_uuid))
if (!uuid_equal(&dsl->sl_uuid, &mp->m_sb.sb_meta_uuid))
return false;
if (bp->b_bn != be64_to_cpu(dsl->sl_blkno))
return false;

3
fs/xfs/xfs_aops.c
View file

@ -353,7 +353,8 @@ xfs_end_bio(
{
xfs_ioend_t *ioend = bio->bi_private;
ioend->io_error = bio->bi_error;
if (!ioend->io_error)
ioend->io_error = bio->bi_error;
/* Toss bio and pass work off to an xfsdatad thread */
bio->bi_private = NULL;

89
fs/xfs/xfs_bmap_util.c
View file

@ -67,16 +67,15 @@ xfs_fsb_to_db(struct xfs_inode *ip, xfs_fsblock_t fsb)
*/
int /* error */
xfs_bmap_finish(
xfs_trans_t **tp, /* transaction pointer addr */
xfs_bmap_free_t *flist, /* i/o: list extents to free */
int *committed) /* xact committed or not */
struct xfs_trans **tp, /* transaction pointer addr */
struct xfs_bmap_free *flist, /* i/o: list extents to free */
int *committed)/* xact committed or not */
{
xfs_efd_log_item_t *efd; /* extent free data */
xfs_efi_log_item_t *efi; /* extent free intention */
int error; /* error return value */
xfs_bmap_free_item_t *free; /* free extent item */
xfs_mount_t *mp; /* filesystem mount structure */
xfs_bmap_free_item_t *next; /* next item on free list */
struct xfs_efd_log_item *efd; /* extent free data */
struct xfs_efi_log_item *efi; /* extent free intention */
int error; /* error return value */
struct xfs_bmap_free_item *free; /* free extent item */
struct xfs_bmap_free_item *next; /* next item on free list */
ASSERT((*tp)->t_flags & XFS_TRANS_PERM_LOG_RES);
if (flist->xbf_count == 0) {
@ -88,40 +87,48 @@ xfs_bmap_finish(
xfs_trans_log_efi_extent(*tp, efi, free->xbfi_startblock,
free->xbfi_blockcount);
error = xfs_trans_roll(tp, NULL);
*committed = 1;
/*
* We have a new transaction, so we should return committed=1,
* even though we're returning an error.
*/
if (error)
return error;
error = __xfs_trans_roll(tp, NULL, committed);
if (error) {
/*
* If the transaction was committed, drop the EFD reference
* since we're bailing out of here. The other reference is
* dropped when the EFI hits the AIL.
*
* If the transaction was not committed, the EFI is freed by the
* EFI item unlock handler on abort. Also, we have a new
* transaction so we should return committed=1 even though we're
* returning an error.
*/
if (*committed) {
xfs_efi_release(efi);
xfs_force_shutdown((*tp)->t_mountp,
(error == -EFSCORRUPTED) ?
SHUTDOWN_CORRUPT_INCORE :
SHUTDOWN_META_IO_ERROR);
} else {
*committed = 1;
}
return error;
}
/*
* Get an EFD and free each extent in the list, logging to the EFD in
* the process. The remaining bmap free list is cleaned up by the caller
* on error.
*/
efd = xfs_trans_get_efd(*tp, efi, flist->xbf_count);
for (free = flist->xbf_first; free != NULL; free = next) {
next = free->xbfi_next;
if ((error = xfs_free_extent(*tp, free->xbfi_startblock,
free->xbfi_blockcount))) {
/*
* The bmap free list will be cleaned up at a
* higher level. The EFI will be canceled when
* this transaction is aborted.
* Need to force shutdown here to make sure it
* happens, since this transaction may not be
* dirty yet.
*/
mp = (*tp)->t_mountp;
if (!XFS_FORCED_SHUTDOWN(mp))
xfs_force_shutdown(mp,
(error == -EFSCORRUPTED) ?
SHUTDOWN_CORRUPT_INCORE :
SHUTDOWN_META_IO_ERROR);
error = xfs_trans_free_extent(*tp, efd, free->xbfi_startblock,
free->xbfi_blockcount);
if (error)
return error;
}
xfs_trans_log_efd_extent(*tp, efd, free->xbfi_startblock,
free->xbfi_blockcount);
xfs_bmap_del_free(flist, NULL, free);
}
return 0;
}
@ -1467,7 +1474,7 @@ xfs_shift_file_space(
XFS_DIOSTRAT_SPACE_RES(mp, 0), 0,
XFS_QMOPT_RES_REGBLKS);
if (error)
goto out;
goto out_trans_cancel;
xfs_trans_ijoin(tp, ip, XFS_ILOCK_EXCL);
@ -1481,18 +1488,20 @@ xfs_shift_file_space(
&done, stop_fsb, &first_block, &free_list,
direction, XFS_BMAP_MAX_SHIFT_EXTENTS);
if (error)
goto out;
goto out_bmap_cancel;
error = xfs_bmap_finish(&tp, &free_list, &committed);
if (error)
goto out;
goto out_bmap_cancel;
error = xfs_trans_commit(tp);
}
return error;
out:
out_bmap_cancel:
xfs_bmap_cancel(&free_list);
out_trans_cancel:
xfs_trans_cancel(tp);
return error;
}

9
fs/xfs/xfs_buf.c
View file

@ -438,7 +438,6 @@ _xfs_buf_find(
xfs_buf_flags_t flags,
xfs_buf_t *new_bp)
{
size_t numbytes;
struct xfs_perag *pag;
struct rb_node **rbp;
struct rb_node *parent;
@ -450,10 +449,9 @@ _xfs_buf_find(
for (i = 0; i < nmaps; i++)
numblks += map[i].bm_len;
numbytes = BBTOB(numblks);
/* Check for IOs smaller than the sector size / not sector aligned */
ASSERT(!(numbytes < btp->bt_meta_sectorsize));
ASSERT(!(BBTOB(numblks) < btp->bt_meta_sectorsize));
ASSERT(!(BBTOB(blkno) & (xfs_off_t)btp->bt_meta_sectormask));
/*
@ -1532,9 +1530,10 @@ xfs_wait_buftarg(
list_del_init(&bp->b_lru);
if (bp->b_flags & XBF_WRITE_FAIL) {
xfs_alert(btp->bt_mount,
"Corruption Alert: Buffer at block 0x%llx had permanent write failures!\n"
"Please run xfs_repair to determine the extent of the problem.",
"Corruption Alert: Buffer at block 0x%llx had permanent write failures!",
(long long)bp->b_bn);
xfs_alert(btp->bt_mount,
"Please run xfs_repair to determine the extent of the problem.");
}
xfs_buf_rele(bp);
}

26
fs/xfs/xfs_buf_item.c
View file

@ -647,11 +647,7 @@ xfs_buf_item_unlock(
xfs_buf_item_relse(bp);
else if (aborted) {
ASSERT(XFS_FORCED_SHUTDOWN(lip->li_mountp));
if (lip->li_flags & XFS_LI_IN_AIL) {
spin_lock(&lip->li_ailp->xa_lock);
xfs_trans_ail_delete(lip->li_ailp, lip,
SHUTDOWN_LOG_IO_ERROR);
}
xfs_trans_ail_remove(lip, SHUTDOWN_LOG_IO_ERROR);
xfs_buf_item_relse(bp);
}
}
@ -750,13 +746,13 @@ xfs_buf_item_free_format(
* buffer (see xfs_buf_attach_iodone() below), then put the
* buf log item at the front.
*/
void
int
xfs_buf_item_init(
xfs_buf_t *bp,
xfs_mount_t *mp)
struct xfs_buf *bp,
struct xfs_mount *mp)
{
xfs_log_item_t *lip = bp->b_fspriv;
xfs_buf_log_item_t *bip;
struct xfs_log_item *lip = bp->b_fspriv;
struct xfs_buf_log_item *bip;
int chunks;
int map_size;
int error;
@ -770,12 +766,11 @@ xfs_buf_item_init(
*/
ASSERT(bp->b_target->bt_mount == mp);
if (lip != NULL && lip->li_type == XFS_LI_BUF)
return;
return 0;
bip = kmem_zone_zalloc(xfs_buf_item_zone, KM_SLEEP);
xfs_log_item_init(mp, &bip->bli_item, XFS_LI_BUF, &xfs_buf_item_ops);
bip->bli_buf = bp;
xfs_buf_hold(bp);
/*
* chunks is the number of XFS_BLF_CHUNK size pieces the buffer
@ -788,6 +783,11 @@ xfs_buf_item_init(
*/
error = xfs_buf_item_get_format(bip, bp->b_map_count);
ASSERT(error == 0);
if (error) { /* to stop gcc throwing set-but-unused warnings */
kmem_zone_free(xfs_buf_item_zone, bip);
return error;
}
for (i = 0; i < bip->bli_format_count; i++) {
chunks = DIV_ROUND_UP(BBTOB(bp->b_maps[i].bm_len),
@ -807,6 +807,8 @@ xfs_buf_item_init(
if (bp->b_fspriv)
bip->bli_item.li_bio_list = bp->b_fspriv;
bp->b_fspriv = bip;
xfs_buf_hold(bp);
return 0;
}

2
fs/xfs/xfs_buf_item.h
View file

@ -61,7 +61,7 @@ typedef struct xfs_buf_log_item {
struct xfs_buf_log_format __bli_format; /* embedded in-log header */
} xfs_buf_log_item_t;
void xfs_buf_item_init(struct xfs_buf *, struct xfs_mount *);
int xfs_buf_item_init(struct xfs_buf *, struct xfs_mount *);
void xfs_buf_item_relse(struct xfs_buf *);
void xfs_buf_item_log(xfs_buf_log_item_t *, uint, uint);
uint xfs_buf_item_dirty(xfs_buf_log_item_t *);

11
fs/xfs/xfs_dir2_readdir.c
View file

@ -171,6 +171,7 @@ xfs_dir2_block_getdents(
int wantoff; /* starting block offset */
xfs_off_t cook;
struct xfs_da_geometry *geo = args->geo;
int lock_mode;
/*
* If the block number in the offset is out of range, we're done.
@ -178,7 +179,9 @@ xfs_dir2_block_getdents(
if (xfs_dir2_dataptr_to_db(geo, ctx->pos) > geo->datablk)
return 0;
lock_mode = xfs_ilock_data_map_shared(dp);
error = xfs_dir3_block_read(NULL, dp, &bp);
xfs_iunlock(dp, lock_mode);
if (error)
return error;
@ -529,9 +532,12 @@ xfs_dir2_leaf_getdents(
* current buffer, need to get another one.
*/
if (!bp || ptr >= (char *)bp->b_addr + geo->blksize) {
int lock_mode;
lock_mode = xfs_ilock_data_map_shared(dp);
error = xfs_dir2_leaf_readbuf(args, bufsize, map_info,
&curoff, &bp);
xfs_iunlock(dp, lock_mode);
if (error || !map_info->map_valid)
break;
@ -653,7 +659,6 @@ xfs_readdir(
struct xfs_da_args args = { NULL };
int rval;
int v;
uint lock_mode;
trace_xfs_readdir(dp);
@ -666,7 +671,7 @@ xfs_readdir(
args.dp = dp;
args.geo = dp->i_mount->m_dir_geo;
lock_mode = xfs_ilock_data_map_shared(dp);
xfs_ilock(dp, XFS_IOLOCK_SHARED);
if (dp->i_d.di_format == XFS_DINODE_FMT_LOCAL)
rval = xfs_dir2_sf_getdents(&args, ctx);
else if ((rval = xfs_dir2_isblock(&args, &v)))
@ -675,7 +680,7 @@ xfs_readdir(
rval = xfs_dir2_block_getdents(&args, ctx);
else
rval = xfs_dir2_leaf_getdents(&args, ctx, bufsize);
xfs_iunlock(dp, lock_mode);
xfs_iunlock(dp, XFS_IOLOCK_SHARED);
return rval;
}

10
fs/xfs/xfs_dquot.c
View file

@ -251,7 +251,7 @@ xfs_qm_init_dquot_blk(
d->dd_diskdq.d_id = cpu_to_be32(curid);
d->dd_diskdq.d_flags = type;
if (xfs_sb_version_hascrc(&mp->m_sb)) {
uuid_copy(&d->dd_uuid, &mp->m_sb.sb_uuid);
uuid_copy(&d->dd_uuid, &mp->m_sb.sb_meta_uuid);
xfs_update_cksum((char *)d, sizeof(struct xfs_dqblk),
XFS_DQUOT_CRC_OFF);
}
@ -954,12 +954,8 @@ xfs_qm_dqflush(
struct xfs_log_item *lip = &dqp->q_logitem.qli_item;
dqp->dq_flags &= ~XFS_DQ_DIRTY;
spin_lock(&mp->m_ail->xa_lock);
if (lip->li_flags & XFS_LI_IN_AIL)
xfs_trans_ail_delete(mp->m_ail, lip,
SHUTDOWN_CORRUPT_INCORE);
else
spin_unlock(&mp->m_ail->xa_lock);
xfs_trans_ail_remove(lip, SHUTDOWN_CORRUPT_INCORE);
error = -EIO;
goto out_unlock;
}

105
fs/xfs/xfs_extfree_item.c
View file

@ -46,28 +46,6 @@ xfs_efi_item_free(
kmem_zone_free(xfs_efi_zone, efip);
}
/*
* Freeing the efi requires that we remove it from the AIL if it has already
* been placed there. However, the EFI may not yet have been placed in the AIL
* when called by xfs_efi_release() from EFD processing due to the ordering of
* committed vs unpin operations in bulk insert operations. Hence the reference
* count to ensure only the last caller frees the EFI.
*/
STATIC void
__xfs_efi_release(
struct xfs_efi_log_item *efip)
{
struct xfs_ail *ailp = efip->efi_item.li_ailp;
if (atomic_dec_and_test(&efip->efi_refcount)) {
spin_lock(&ailp->xa_lock);
/* xfs_trans_ail_delete() drops the AIL lock. */
xfs_trans_ail_delete(ailp, &efip->efi_item,
SHUTDOWN_LOG_IO_ERROR);
xfs_efi_item_free(efip);
}
}
/*
* This returns the number of iovecs needed to log the given efi item.
* We only need 1 iovec for an efi item. It just logs the efi_log_format
@ -128,12 +106,12 @@ xfs_efi_item_pin(
}
/*
* While EFIs cannot really be pinned, the unpin operation is the last place at
* which the EFI is manipulated during a transaction. If we are being asked to
* remove the EFI it's because the transaction has been cancelled and by
* definition that means the EFI cannot be in the AIL so remove it from the
* transaction and free it. Otherwise coordinate with xfs_efi_release()
* to determine who gets to free the EFI.
* The unpin operation is the last place an EFI is manipulated in the log. It is
* either inserted in the AIL or aborted in the event of a log I/O error. In
* either case, the EFI transaction has been successfully committed to make it
* this far. Therefore, we expect whoever committed the EFI to either construct
* and commit the EFD or drop the EFD's reference in the event of error. Simply
* drop the log's EFI reference now that the log is done with it.
*/
STATIC void
xfs_efi_item_unpin(
@ -141,15 +119,7 @@ xfs_efi_item_unpin(
int remove)
{
struct xfs_efi_log_item *efip = EFI_ITEM(lip);
if (remove) {
ASSERT(!(lip->li_flags & XFS_LI_IN_AIL));
if (lip->li_desc)
xfs_trans_del_item(lip);
xfs_efi_item_free(efip);
return;
}
__xfs_efi_release(efip);
xfs_efi_release(efip);
}
/*
@ -167,6 +137,11 @@ xfs_efi_item_push(
return XFS_ITEM_PINNED;
}
/*
* The EFI has been either committed or aborted if the transaction has been
* cancelled. If the transaction was cancelled, an EFD isn't going to be
* constructed and thus we free the EFI here directly.
*/
STATIC void
xfs_efi_item_unlock(
struct xfs_log_item *lip)
@ -301,23 +276,19 @@ xfs_efi_copy_format(xfs_log_iovec_t *buf, xfs_efi_log_format_t *dst_efi_fmt)
}
/*
* This is called by the efd item code below to release references to the given
* efi item. Each efd calls this with the number of extents that it has
* logged, and when the sum of these reaches the total number of extents logged
* by this efi item we can free the efi item.
* Freeing the efi requires that we remove it from the AIL if it has already
* been placed there. However, the EFI may not yet have been placed in the AIL
* when called by xfs_efi_release() from EFD processing due to the ordering of
* committed vs unpin operations in bulk insert operations. Hence the reference
* count to ensure only the last caller frees the EFI.
*/
void
xfs_efi_release(xfs_efi_log_item_t *efip,
uint nextents)
xfs_efi_release(
struct xfs_efi_log_item *efip)
{
ASSERT(atomic_read(&efip->efi_next_extent) >= nextents);
if (atomic_sub_and_test(nextents, &efip->efi_next_extent)) {
/* recovery needs us to drop the EFI reference, too */
if (test_bit(XFS_EFI_RECOVERED, &efip->efi_flags))
__xfs_efi_release(efip);
__xfs_efi_release(efip);
/* efip may now have been freed, do not reference it again. */
if (atomic_dec_and_test(&efip->efi_refcount)) {
xfs_trans_ail_remove(&efip->efi_item, SHUTDOWN_LOG_IO_ERROR);
xfs_efi_item_free(efip);
}
}
@ -415,20 +386,27 @@ xfs_efd_item_push(
return XFS_ITEM_PINNED;
}
/*
* The EFD is either committed or aborted if the transaction is cancelled. If
* the transaction is cancelled, drop our reference to the EFI and free the EFD.
*/
STATIC void
xfs_efd_item_unlock(
struct xfs_log_item *lip)
{
if (lip->li_flags & XFS_LI_ABORTED)
xfs_efd_item_free(EFD_ITEM(lip));
struct xfs_efd_log_item *efdp = EFD_ITEM(lip);
if (lip->li_flags & XFS_LI_ABORTED) {
xfs_efi_release(efdp->efd_efip);
xfs_efd_item_free(efdp);
}
}
/*
* When the efd item is committed to disk, all we need to do
* is delete our reference to our partner efi item and then
* free ourselves. Since we're freeing ourselves we must
* return -1 to keep the transaction code from further referencing
* this item.
* When the efd item is committed to disk, all we need to do is delete our
* reference to our partner efi item and then free ourselves. Since we're
* freeing ourselves we must return -1 to keep the transaction code from further
* referencing this item.
*/
STATIC xfs_lsn_t
xfs_efd_item_committed(
@ -438,13 +416,14 @@ xfs_efd_item_committed(
struct xfs_efd_log_item *efdp = EFD_ITEM(lip);
/*
* If we got a log I/O error, it's always the case that the LR with the
* EFI got unpinned and freed before the EFD got aborted.
* Drop the EFI reference regardless of whether the EFD has been
* aborted. Once the EFD transaction is constructed, it is the sole
* responsibility of the EFD to release the EFI (even if the EFI is
* aborted due to log I/O error).
*/
if (!(lip->li_flags & XFS_LI_ABORTED))
xfs_efi_release(efdp->efd_efip, efdp->efd_format.efd_nextents);
xfs_efi_release(efdp->efd_efip);
xfs_efd_item_free(efdp);
return (xfs_lsn_t)-1;
}

26
fs/xfs/xfs_extfree_item.h
View file

@ -39,9 +39,28 @@ struct kmem_zone;
* "extent free done" log item described below.
*
* The EFI is reference counted so that it is not freed prior to both the EFI
* and EFD being committed and unpinned. This ensures that when the last
* reference goes away the EFI will always be in the AIL as it has been
* unpinned, regardless of whether the EFD is processed before or after the EFI.
* and EFD being committed and unpinned. This ensures the EFI is inserted into
* the AIL even in the event of out of order EFI/EFD processing. In other words,
* an EFI is born with two references:
*
* 1.) an EFI held reference to track EFI AIL insertion
* 2.) an EFD held reference to track EFD commit
*
* On allocation, both references are the responsibility of the caller. Once the
* EFI is added to and dirtied in a transaction, ownership of reference one
* transfers to the transaction. The reference is dropped once the EFI is
* inserted to the AIL or in the event of failure along the way (e.g., commit
* failure, log I/O error, etc.). Note that the caller remains responsible for
* the EFD reference under all circumstances to this point. The caller has no
* means to detect failure once the transaction is committed, however.
* Therefore, an EFD is required after this point, even in the event of
* unrelated failure.
*
* Once an EFD is allocated and dirtied in a transaction, reference two
* transfers to the transaction. The EFD reference is dropped once it reaches
* the unpin handler. Similar to the EFI, the reference also drops in the event
* of commit failure or log I/O errors. Note that the EFD is not inserted in the
* AIL, so at this point both the EFI and EFD are freed.
*/
typedef struct xfs_efi_log_item {
xfs_log_item_t efi_item;
@ -77,5 +96,6 @@ xfs_efd_log_item_t *xfs_efd_init(struct xfs_mount *, xfs_efi_log_item_t *,
int xfs_efi_copy_format(xfs_log_iovec_t *buf,
xfs_efi_log_format_t *dst_efi_fmt);
void xfs_efi_item_free(xfs_efi_log_item_t *);
void xfs_efi_release(struct xfs_efi_log_item *);
#endif /* __XFS_EXTFREE_ITEM_H__ */

51
fs/xfs/xfs_file.c
View file

@ -317,24 +317,33 @@ xfs_file_read_iter(
return -EIO;
/*
* Locking is a bit tricky here. If we take an exclusive lock
* for direct IO, we effectively serialise all new concurrent
* read IO to this file and block it behind IO that is currently in
* progress because IO in progress holds the IO lock shared. We only
* need to hold the lock exclusive to blow away the page cache, so
* only take lock exclusively if the page cache needs invalidation.
* This allows the normal direct IO case of no page cache pages to
* proceeed concurrently without serialisation.
* Locking is a bit tricky here. If we take an exclusive lock for direct
* IO, we effectively serialise all new concurrent read IO to this file
* and block it behind IO that is currently in progress because IO in
* progress holds the IO lock shared. We only need to hold the lock
* exclusive to blow away the page cache, so only take lock exclusively
* if the page cache needs invalidation. This allows the normal direct
* IO case of no page cache pages to proceeed concurrently without
* serialisation.
*/
xfs_rw_ilock(ip, XFS_IOLOCK_SHARED);
if ((ioflags & XFS_IO_ISDIRECT) && inode->i_mapping->nrpages) {
xfs_rw_iunlock(ip, XFS_IOLOCK_SHARED);
xfs_rw_ilock(ip, XFS_IOLOCK_EXCL);
/*
* The generic dio code only flushes the range of the particular
* I/O. Because we take an exclusive lock here, this whole
* sequence is considerably more expensive for us. This has a
* noticeable performance impact for any file with cached pages,
* even when outside of the range of the particular I/O.
*
* Hence, amortize the cost of the lock against a full file
* flush and reduce the chances of repeated iolock cycles going
* forward.
*/
if (inode->i_mapping->nrpages) {
ret = filemap_write_and_wait_range(
VFS_I(ip)->i_mapping,
pos, pos + size - 1);
ret = filemap_write_and_wait(VFS_I(ip)->i_mapping);
if (ret) {
xfs_rw_iunlock(ip, XFS_IOLOCK_EXCL);
return ret;
@ -345,9 +354,7 @@ xfs_file_read_iter(
* we fail to invalidate a page, but this should never
* happen on XFS. Warn if it does fail.
*/
ret = invalidate_inode_pages2_range(VFS_I(ip)->i_mapping,
pos >> PAGE_CACHE_SHIFT,
(pos + size - 1) >> PAGE_CACHE_SHIFT);
ret = invalidate_inode_pages2(VFS_I(ip)->i_mapping);
WARN_ON_ONCE(ret);
ret = 0;
}
@ -733,19 +740,19 @@ xfs_file_dio_aio_write(
pos = iocb->ki_pos;
end = pos + count - 1;
/*
* See xfs_file_read_iter() for why we do a full-file flush here.
*/
if (mapping->nrpages) {
ret = filemap_write_and_wait_range(VFS_I(ip)->i_mapping,
pos, end);
ret = filemap_write_and_wait(VFS_I(ip)->i_mapping);
if (ret)
goto out;
/*
* Invalidate whole pages. This can return an error if
* we fail to invalidate a page, but this should never
* happen on XFS. Warn if it does fail.
* Invalidate whole pages. This can return an error if we fail
* to invalidate a page, but this should never happen on XFS.
* Warn if it does fail.
*/
ret = invalidate_inode_pages2_range(VFS_I(ip)->i_mapping,
pos >> PAGE_CACHE_SHIFT,
end >> PAGE_CACHE_SHIFT);
ret = invalidate_inode_pages2(VFS_I(ip)->i_mapping);
WARN_ON_ONCE(ret);
ret = 0;
}

6
fs/xfs/xfs_fsops.c
View file

@ -250,7 +250,7 @@ xfs_growfs_data_private(
agf->agf_freeblks = cpu_to_be32(tmpsize);
agf->agf_longest = cpu_to_be32(tmpsize);
if (xfs_sb_version_hascrc(&mp->m_sb))
uuid_copy(&agf->agf_uuid, &mp->m_sb.sb_uuid);
uuid_copy(&agf->agf_uuid, &mp->m_sb.sb_meta_uuid);
error = xfs_bwrite(bp);
xfs_buf_relse(bp);
@ -273,7 +273,7 @@ xfs_growfs_data_private(
if (xfs_sb_version_hascrc(&mp->m_sb)) {
agfl->agfl_magicnum = cpu_to_be32(XFS_AGFL_MAGIC);
agfl->agfl_seqno = cpu_to_be32(agno);
uuid_copy(&agfl->agfl_uuid, &mp->m_sb.sb_uuid);
uuid_copy(&agfl->agfl_uuid, &mp->m_sb.sb_meta_uuid);
}
agfl_bno = XFS_BUF_TO_AGFL_BNO(mp, bp);
@ -309,7 +309,7 @@ xfs_growfs_data_private(
agi->agi_newino = cpu_to_be32(NULLAGINO);
agi->agi_dirino = cpu_to_be32(NULLAGINO);
if (xfs_sb_version_hascrc(&mp->m_sb))
uuid_copy(&agi->agi_uuid, &mp->m_sb.sb_uuid);
uuid_copy(&agi->agi_uuid, &mp->m_sb.sb_meta_uuid);
if (xfs_sb_version_hasfinobt(&mp->m_sb)) {
agi->agi_free_root = cpu_to_be32(XFS_FIBT_BLOCK(mp));
agi->agi_free_level = cpu_to_be32(1);

2
fs/xfs/xfs_icache.c
View file

@ -412,6 +412,8 @@ xfs_iget(
if (!ino || XFS_INO_TO_AGNO(mp, ino) >= mp->m_sb.sb_agcount)
return -EINVAL;
XFS_STATS_INC(xs_ig_attempts);
/* get the perag structure and ensure that it's inode capable */
pag = xfs_perag_get(mp, XFS_INO_TO_AGNO(mp, ino));
agino = XFS_INO_TO_AGINO(mp, ino);

141
fs/xfs/xfs_inode.c
View file

@ -164,7 +164,7 @@ xfs_ilock(
(XFS_MMAPLOCK_SHARED | XFS_MMAPLOCK_EXCL));
ASSERT((lock_flags & (XFS_ILOCK_SHARED | XFS_ILOCK_EXCL)) !=
(XFS_ILOCK_SHARED | XFS_ILOCK_EXCL));
ASSERT((lock_flags & ~(XFS_LOCK_MASK | XFS_LOCK_DEP_MASK)) == 0);
ASSERT((lock_flags & ~(XFS_LOCK_MASK | XFS_LOCK_SUBCLASS_MASK)) == 0);
if (lock_flags & XFS_IOLOCK_EXCL)
mrupdate_nested(&ip->i_iolock, XFS_IOLOCK_DEP(lock_flags));
@ -212,7 +212,7 @@ xfs_ilock_nowait(
(XFS_MMAPLOCK_SHARED | XFS_MMAPLOCK_EXCL));
ASSERT((lock_flags & (XFS_ILOCK_SHARED | XFS_ILOCK_EXCL)) !=
(XFS_ILOCK_SHARED | XFS_ILOCK_EXCL));
ASSERT((lock_flags & ~(XFS_LOCK_MASK | XFS_LOCK_DEP_MASK)) == 0);
ASSERT((lock_flags & ~(XFS_LOCK_MASK | XFS_LOCK_SUBCLASS_MASK)) == 0);
if (lock_flags & XFS_IOLOCK_EXCL) {
if (!mrtryupdate(&ip->i_iolock))
@ -281,7 +281,7 @@ xfs_iunlock(
(XFS_MMAPLOCK_SHARED | XFS_MMAPLOCK_EXCL));
ASSERT((lock_flags & (XFS_ILOCK_SHARED | XFS_ILOCK_EXCL)) !=
(XFS_ILOCK_SHARED | XFS_ILOCK_EXCL));
ASSERT((lock_flags & ~(XFS_LOCK_MASK | XFS_LOCK_DEP_MASK)) == 0);
ASSERT((lock_flags & ~(XFS_LOCK_MASK | XFS_LOCK_SUBCLASS_MASK)) == 0);
ASSERT(lock_flags != 0);
if (lock_flags & XFS_IOLOCK_EXCL)
@ -362,32 +362,58 @@ int xfs_lots_retries;
int xfs_lock_delays;
#endif
/*
* xfs_lockdep_subclass_ok() is only used in an ASSERT, so is only called when
* DEBUG or XFS_WARN is set. And MAX_LOCKDEP_SUBCLASSES is then only defined
* when CONFIG_LOCKDEP is set. Hence the complex define below to avoid build
* errors and warnings.
*/
#if (defined(DEBUG) || defined(XFS_WARN)) && defined(CONFIG_LOCKDEP)
static bool
xfs_lockdep_subclass_ok(
int subclass)
{
return subclass < MAX_LOCKDEP_SUBCLASSES;
}
#else
#define xfs_lockdep_subclass_ok(subclass) (true)
#endif
/*
* Bump the subclass so xfs_lock_inodes() acquires each lock with a different
* value. This shouldn't be called for page fault locking, but we also need to
* ensure we don't overrun the number of lockdep subclasses for the iolock or
* mmaplock as that is limited to 12 by the mmap lock lockdep annotations.
* value. This can be called for any type of inode lock combination, including
* parent locking. Care must be taken to ensure we don't overrun the subclass
* storage fields in the class mask we build.
*/
static inline int
xfs_lock_inumorder(int lock_mode, int subclass)
{
int class = 0;
ASSERT(!(lock_mode & (XFS_ILOCK_PARENT | XFS_ILOCK_RTBITMAP |
XFS_ILOCK_RTSUM)));
ASSERT(xfs_lockdep_subclass_ok(subclass));
if (lock_mode & (XFS_IOLOCK_SHARED|XFS_IOLOCK_EXCL)) {
ASSERT(subclass + XFS_LOCK_INUMORDER <
(1 << (XFS_MMAPLOCK_SHIFT - XFS_IOLOCK_SHIFT)));
lock_mode |= (subclass + XFS_LOCK_INUMORDER) << XFS_IOLOCK_SHIFT;
ASSERT(subclass <= XFS_IOLOCK_MAX_SUBCLASS);
ASSERT(xfs_lockdep_subclass_ok(subclass +
XFS_IOLOCK_PARENT_VAL));
class += subclass << XFS_IOLOCK_SHIFT;
if (lock_mode & XFS_IOLOCK_PARENT)
class += XFS_IOLOCK_PARENT_VAL << XFS_IOLOCK_SHIFT;
}
if (lock_mode & (XFS_MMAPLOCK_SHARED|XFS_MMAPLOCK_EXCL)) {
ASSERT(subclass + XFS_LOCK_INUMORDER <
(1 << (XFS_ILOCK_SHIFT - XFS_MMAPLOCK_SHIFT)));
lock_mode |= (subclass + XFS_LOCK_INUMORDER) <<
XFS_MMAPLOCK_SHIFT;
ASSERT(subclass <= XFS_MMAPLOCK_MAX_SUBCLASS);
class += subclass << XFS_MMAPLOCK_SHIFT;
}
if (lock_mode & (XFS_ILOCK_SHARED|XFS_ILOCK_EXCL))
lock_mode |= (subclass + XFS_LOCK_INUMORDER) << XFS_ILOCK_SHIFT;
if (lock_mode & (XFS_ILOCK_SHARED|XFS_ILOCK_EXCL)) {
ASSERT(subclass <= XFS_ILOCK_MAX_SUBCLASS);
class += subclass << XFS_ILOCK_SHIFT;
}
return lock_mode;
return (lock_mode & ~XFS_LOCK_SUBCLASS_MASK) | class;
}
/*
@ -399,6 +425,11 @@ xfs_lock_inumorder(int lock_mode, int subclass)
* transaction (such as truncate). This can result in deadlock since the long
* running trans might need to wait for the inode we just locked in order to
* push the tail and free space in the log.
*
* xfs_lock_inodes() can only be used to lock one type of lock at a time -
* the iolock, the mmaplock or the ilock, but not more than one at a time. If we
* lock more than one at a time, lockdep will report false positives saying we
* have violated locking orders.
*/
void
xfs_lock_inodes(
@ -409,8 +440,29 @@ xfs_lock_inodes(
int attempts = 0, i, j, try_lock;
xfs_log_item_t *lp;
/* currently supports between 2 and 5 inodes */
/*
* Currently supports between 2 and 5 inodes with exclusive locking. We
* support an arbitrary depth of locking here, but absolute limits on
* inodes depend on the the type of locking and the limits placed by
* lockdep annotations in xfs_lock_inumorder. These are all checked by
* the asserts.
*/
ASSERT(ips && inodes >= 2 && inodes <= 5);
ASSERT(lock_mode & (XFS_IOLOCK_EXCL | XFS_MMAPLOCK_EXCL |
XFS_ILOCK_EXCL));
ASSERT(!(lock_mode & (XFS_IOLOCK_SHARED | XFS_MMAPLOCK_SHARED |
XFS_ILOCK_SHARED)));
ASSERT(!(lock_mode & XFS_IOLOCK_EXCL) ||
inodes <= XFS_IOLOCK_MAX_SUBCLASS + 1);
ASSERT(!(lock_mode & XFS_MMAPLOCK_EXCL) ||
inodes <= XFS_MMAPLOCK_MAX_SUBCLASS + 1);
ASSERT(!(lock_mode & XFS_ILOCK_EXCL) ||
inodes <= XFS_ILOCK_MAX_SUBCLASS + 1);
if (lock_mode & XFS_IOLOCK_EXCL) {
ASSERT(!(lock_mode & (XFS_MMAPLOCK_EXCL | XFS_ILOCK_EXCL)));
} else if (lock_mode & XFS_MMAPLOCK_EXCL)
ASSERT(!(lock_mode & XFS_ILOCK_EXCL));
try_lock = 0;
i = 0;
@ -629,30 +681,29 @@ xfs_lookup(
{
xfs_ino_t inum;
int error;
uint lock_mode;
trace_xfs_lookup(dp, name);
if (XFS_FORCED_SHUTDOWN(dp->i_mount))
return -EIO;
lock_mode = xfs_ilock_data_map_shared(dp);
xfs_ilock(dp, XFS_IOLOCK_SHARED);
error = xfs_dir_lookup(NULL, dp, name, &inum, ci_name);
xfs_iunlock(dp, lock_mode);
if (error)
goto out;
goto out_unlock;
error = xfs_iget(dp->i_mount, NULL, inum, 0, 0, ipp);
if (error)
goto out_free_name;
xfs_iunlock(dp, XFS_IOLOCK_SHARED);
return 0;
out_free_name:
if (ci_name)
kmem_free(ci_name->name);
out:
out_unlock:
xfs_iunlock(dp, XFS_IOLOCK_SHARED);
*ipp = NULL;
return error;
}
@ -787,7 +838,7 @@ xfs_ialloc(
if (ip->i_d.di_version == 3) {
ASSERT(ip->i_d.di_ino == ino);
ASSERT(uuid_equal(&ip->i_d.di_uuid, &mp->m_sb.sb_uuid));
ASSERT(uuid_equal(&ip->i_d.di_uuid, &mp->m_sb.sb_meta_uuid));
ip->i_d.di_crc = 0;
ip->i_d.di_changecount = 1;
ip->i_d.di_lsn = 0;
@ -1149,7 +1200,8 @@ xfs_create(
goto out_trans_cancel;
xfs_ilock(dp, XFS_ILOCK_EXCL | XFS_ILOCK_PARENT);
xfs_ilock(dp, XFS_IOLOCK_EXCL | XFS_ILOCK_EXCL |
XFS_IOLOCK_PARENT | XFS_ILOCK_PARENT);
unlock_dp_on_error = true;
xfs_bmap_init(&free_list, &first_block);
@ -1175,11 +1227,8 @@ xfs_create(
*/
error = xfs_dir_ialloc(&tp, dp, mode, is_dir ? 2 : 1, rdev,
prid, resblks > 0, &ip, &committed);
if (error) {
if (error == -ENOSPC)
goto out_trans_cancel;
if (error)
goto out_trans_cancel;
}
/*
* Now we join the directory inode to the transaction. We do not do it
@ -1188,7 +1237,7 @@ xfs_create(
* the transaction cancel unlocking dp so don't do it explicitly in the
* error path.
*/
xfs_trans_ijoin(tp, dp, XFS_ILOCK_EXCL);
xfs_trans_ijoin(tp, dp, XFS_IOLOCK_EXCL | XFS_ILOCK_EXCL);
unlock_dp_on_error = false;
error = xfs_dir_createname(tp, dp, name, ip->i_ino,
@ -1261,7 +1310,7 @@ xfs_create(
xfs_qm_dqrele(pdqp);
if (unlock_dp_on_error)
xfs_iunlock(dp, XFS_ILOCK_EXCL);
xfs_iunlock(dp, XFS_IOLOCK_EXCL | XFS_ILOCK_EXCL);
return error;
}
@ -1318,11 +1367,8 @@ xfs_create_tmpfile(
error = xfs_dir_ialloc(&tp, dp, mode, 1, 0,
prid, resblks > 0, &ip, NULL);
if (error) {
if (error == -ENOSPC)
goto out_trans_cancel;
if (error)
goto out_trans_cancel;
}
if (mp->m_flags & XFS_MOUNT_WSYNC)
xfs_trans_set_sync(tp);
@ -1409,10 +1455,11 @@ xfs_link(
if (error)
goto error_return;
xfs_ilock(tdp, XFS_IOLOCK_EXCL | XFS_IOLOCK_PARENT);
xfs_lock_two_inodes(sip, tdp, XFS_ILOCK_EXCL);
xfs_trans_ijoin(tp, sip, XFS_ILOCK_EXCL);
xfs_trans_ijoin(tp, tdp, XFS_ILOCK_EXCL);
xfs_trans_ijoin(tp, tdp, XFS_IOLOCK_EXCL | XFS_ILOCK_EXCL);
/*
* If we are using project inheritance, we only allow hard link
@ -1791,14 +1838,15 @@ xfs_inactive_ifree(
xfs_trans_mod_dquot_byino(tp, ip, XFS_TRANS_DQ_ICOUNT, -1);
/*
* Just ignore errors at this point. There is nothing we can
* do except to try to keep going. Make sure it's not a silent
* error.
* Just ignore errors at this point. There is nothing we can do except
* to try to keep going. Make sure it's not a silent error.
*/
error = xfs_bmap_finish(&tp, &free_list, &committed);
if (error)
if (error) {
xfs_notice(mp, "%s: xfs_bmap_finish returned error %d",
__func__, error);
xfs_bmap_cancel(&free_list);
}
error = xfs_trans_commit(tp);
if (error)
xfs_notice(mp, "%s: xfs_trans_commit returned error %d",
@ -2515,9 +2563,10 @@ xfs_remove(
goto out_trans_cancel;
}
xfs_ilock(dp, XFS_IOLOCK_EXCL | XFS_IOLOCK_PARENT);
xfs_lock_two_inodes(dp, ip, XFS_ILOCK_EXCL);
xfs_trans_ijoin(tp, dp, XFS_ILOCK_EXCL);
xfs_trans_ijoin(tp, dp, XFS_IOLOCK_EXCL | XFS_ILOCK_EXCL);
xfs_trans_ijoin(tp, ip, XFS_ILOCK_EXCL);
/*
@ -2898,6 +2947,12 @@ xfs_rename(
* whether the target directory is the same as the source
* directory, we can lock from 2 to 4 inodes.
*/
if (!new_parent)
xfs_ilock(src_dp, XFS_IOLOCK_EXCL | XFS_IOLOCK_PARENT);
else
xfs_lock_two_inodes(src_dp, target_dp,
XFS_IOLOCK_EXCL | XFS_IOLOCK_PARENT);
xfs_lock_inodes(inodes, num_inodes, XFS_ILOCK_EXCL);
/*
@ -2905,9 +2960,9 @@ xfs_rename(
* we can rely on either trans_commit or trans_cancel to unlock
* them.
*/
xfs_trans_ijoin(tp, src_dp, XFS_ILOCK_EXCL);
xfs_trans_ijoin(tp, src_dp, XFS_IOLOCK_EXCL | XFS_ILOCK_EXCL);
if (new_parent)
xfs_trans_ijoin(tp, target_dp, XFS_ILOCK_EXCL);
xfs_trans_ijoin(tp, target_dp, XFS_IOLOCK_EXCL | XFS_ILOCK_EXCL);
xfs_trans_ijoin(tp, src_ip, XFS_ILOCK_EXCL);
if (target_ip)
xfs_trans_ijoin(tp, target_ip, XFS_ILOCK_EXCL);

79
fs/xfs/xfs_inode.h
View file

@ -284,9 +284,9 @@ static inline int xfs_isiflocked(struct xfs_inode *ip)
* Flags for lockdep annotations.
*
* XFS_LOCK_PARENT - for directory operations that require locking a
* parent directory inode and a child entry inode. The parent gets locked
* with this flag so it gets a lockdep subclass of 1 and the child entry
* lock will have a lockdep subclass of 0.
* parent directory inode and a child entry inode. IOLOCK requires nesting,
* MMAPLOCK does not support this class, ILOCK requires a single subclass
* to differentiate parent from child.
*
* XFS_LOCK_RTBITMAP/XFS_LOCK_RTSUM - the realtime device bitmap and summary
* inodes do not participate in the normal lock order, and thus have their
@ -295,30 +295,63 @@ static inline int xfs_isiflocked(struct xfs_inode *ip)
* XFS_LOCK_INUMORDER - for locking several inodes at the some time
* with xfs_lock_inodes(). This flag is used as the starting subclass
* and each subsequent lock acquired will increment the subclass by one.
* So the first lock acquired will have a lockdep subclass of 4, the
* second lock will have a lockdep subclass of 5, and so on. It is
* the responsibility of the class builder to shift this to the correct
* portion of the lock_mode lockdep mask.
* However, MAX_LOCKDEP_SUBCLASSES == 8, which means we are greatly
* limited to the subclasses we can represent via nesting. We need at least
* 5 inodes nest depth for the ILOCK through rename, and we also have to support
* XFS_ILOCK_PARENT, which gives 6 subclasses. Then we have XFS_ILOCK_RTBITMAP
* and XFS_ILOCK_RTSUM, which are another 2 unique subclasses, so that's all
* 8 subclasses supported by lockdep.
*
* This also means we have to number the sub-classes in the lowest bits of
* the mask we keep, and we have to ensure we never exceed 3 bits of lockdep
* mask and we can't use bit-masking to build the subclasses. What a mess.
*
* Bit layout:
*
* Bit Lock Region
* 16-19 XFS_IOLOCK_SHIFT dependencies
* 20-23 XFS_MMAPLOCK_SHIFT dependencies
* 24-31 XFS_ILOCK_SHIFT dependencies
*
* IOLOCK values
*
* 0-3 subclass value
* 4-7 PARENT subclass values
*
* MMAPLOCK values
*
* 0-3 subclass value
* 4-7 unused
*
* ILOCK values
* 0-4 subclass values
* 5 PARENT subclass (not nestable)
* 6 RTBITMAP subclass (not nestable)
* 7 RTSUM subclass (not nestable)
*
*/
#define XFS_LOCK_PARENT 1
#define XFS_LOCK_RTBITMAP 2
#define XFS_LOCK_RTSUM 3
#define XFS_LOCK_INUMORDER 4
#define XFS_IOLOCK_SHIFT 16
#define XFS_IOLOCK_PARENT_VAL 4
#define XFS_IOLOCK_MAX_SUBCLASS (XFS_IOLOCK_PARENT_VAL - 1)
#define XFS_IOLOCK_DEP_MASK 0x000f0000
#define XFS_IOLOCK_PARENT (XFS_IOLOCK_PARENT_VAL << XFS_IOLOCK_SHIFT)
#define XFS_IOLOCK_SHIFT 16
#define XFS_IOLOCK_PARENT (XFS_LOCK_PARENT << XFS_IOLOCK_SHIFT)
#define XFS_MMAPLOCK_SHIFT 20
#define XFS_MMAPLOCK_NUMORDER 0
#define XFS_MMAPLOCK_MAX_SUBCLASS 3
#define XFS_MMAPLOCK_DEP_MASK 0x00f00000
#define XFS_MMAPLOCK_SHIFT 20
#define XFS_ILOCK_SHIFT 24
#define XFS_ILOCK_PARENT_VAL 5
#define XFS_ILOCK_MAX_SUBCLASS (XFS_ILOCK_PARENT_VAL - 1)
#define XFS_ILOCK_RTBITMAP_VAL 6
#define XFS_ILOCK_RTSUM_VAL 7
#define XFS_ILOCK_DEP_MASK 0xff000000
#define XFS_ILOCK_PARENT (XFS_ILOCK_PARENT_VAL << XFS_ILOCK_SHIFT)
#define XFS_ILOCK_RTBITMAP (XFS_ILOCK_RTBITMAP_VAL << XFS_ILOCK_SHIFT)
#define XFS_ILOCK_RTSUM (XFS_ILOCK_RTSUM_VAL << XFS_ILOCK_SHIFT)
#define XFS_ILOCK_SHIFT 24
#define XFS_ILOCK_PARENT (XFS_LOCK_PARENT << XFS_ILOCK_SHIFT)
#define XFS_ILOCK_RTBITMAP (XFS_LOCK_RTBITMAP << XFS_ILOCK_SHIFT)
#define XFS_ILOCK_RTSUM (XFS_LOCK_RTSUM << XFS_ILOCK_SHIFT)
#define XFS_IOLOCK_DEP_MASK 0x000f0000
#define XFS_MMAPLOCK_DEP_MASK 0x00f00000
#define XFS_ILOCK_DEP_MASK 0xff000000
#define XFS_LOCK_DEP_MASK (XFS_IOLOCK_DEP_MASK | \
#define XFS_LOCK_SUBCLASS_MASK (XFS_IOLOCK_DEP_MASK | \
XFS_MMAPLOCK_DEP_MASK | \
XFS_ILOCK_DEP_MASK)

11
fs/xfs/xfs_inode_item.c
View file

@ -703,17 +703,10 @@ xfs_iflush_abort(
xfs_inode_log_item_t *iip = ip->i_itemp;
if (iip) {
struct xfs_ail *ailp = iip->ili_item.li_ailp;
if (iip->ili_item.li_flags & XFS_LI_IN_AIL) {
spin_lock(&ailp->xa_lock);
if (iip->ili_item.li_flags & XFS_LI_IN_AIL) {
/* xfs_trans_ail_delete() drops the AIL lock. */
xfs_trans_ail_delete(ailp, &iip->ili_item,
stale ?
SHUTDOWN_LOG_IO_ERROR :
xfs_trans_ail_remove(&iip->ili_item,
stale ? SHUTDOWN_LOG_IO_ERROR :
SHUTDOWN_CORRUPT_INCORE);
} else
spin_unlock(&ailp->xa_lock);
}
iip->ili_logged = 0;
/*

8
fs/xfs/xfs_iops.c
View file

@ -609,7 +609,7 @@ xfs_setattr_nonsize(
tp = xfs_trans_alloc(mp, XFS_TRANS_SETATTR_NOT_SIZE);
error = xfs_trans_reserve(tp, &M_RES(mp)->tr_ichange, 0, 0);
if (error)
goto out_dqrele;
goto out_trans_cancel;
xfs_ilock(ip, XFS_ILOCK_EXCL);
@ -640,7 +640,7 @@ xfs_setattr_nonsize(
NULL, capable(CAP_FOWNER) ?
XFS_QMOPT_FORCE_RES : 0);
if (error) /* out of quota */
goto out_trans_cancel;
goto out_unlock;
}
}
@ -729,10 +729,10 @@ xfs_setattr_nonsize(
return 0;
out_unlock:
xfs_iunlock(ip, XFS_ILOCK_EXCL);
out_trans_cancel:
xfs_trans_cancel(tp);
xfs_iunlock(ip, XFS_ILOCK_EXCL);
out_dqrele:
xfs_qm_dqrele(udqp);
xfs_qm_dqrele(gdqp);
return error;

3
fs/xfs/xfs_itable.c
View file

@ -473,7 +473,8 @@ xfs_bulkstat(
* pending error, then we are done.
*/
del_cursor:
xfs_btree_del_cursor(cur, XFS_BTREE_NOERROR);
xfs_btree_del_cursor(cur, error ?
XFS_BTREE_ERROR : XFS_BTREE_NOERROR);
xfs_buf_relse(agbp);
if (error)
break;

87
fs/xfs/xfs_log.c
View file

@ -668,9 +668,9 @@ xfs_log_mount(
ASSERT(0);
goto out_free_log;
}
xfs_crit(mp, "Log size out of supported range.");
xfs_crit(mp,
"Log size out of supported range. Continuing onwards, but if log hangs are\n"
"experienced then please report this message in the bug report.");
"Continuing onwards, but if log hangs are experienced then please report this message in the bug report.");
}
/*
@ -700,6 +700,7 @@ xfs_log_mount(
if (error) {
xfs_warn(mp, "log mount/recovery failed: error %d",
error);
xlog_recover_cancel(mp->m_log);
goto out_destroy_ail;
}
}
@ -740,18 +741,35 @@ xfs_log_mount(
* it.
*/
int
xfs_log_mount_finish(xfs_mount_t *mp)
xfs_log_mount_finish(
struct xfs_mount *mp)
{
int error = 0;
if (!(mp->m_flags & XFS_MOUNT_NORECOVERY)) {
error = xlog_recover_finish(mp->m_log);
if (!error)
xfs_log_work_queue(mp);
} else {
if (mp->m_flags & XFS_MOUNT_NORECOVERY) {
ASSERT(mp->m_flags & XFS_MOUNT_RDONLY);
return 0;
}
error = xlog_recover_finish(mp->m_log);
if (!error)
xfs_log_work_queue(mp);
return error;
}
/*
* The mount has failed. Cancel the recovery if it hasn't completed and destroy
* the log.
*/
int
xfs_log_mount_cancel(
struct xfs_mount *mp)
{
int error;
error = xlog_recover_cancel(mp->m_log);
xfs_log_unmount(mp);
return error;
}
@ -1142,11 +1160,13 @@ xlog_space_left(
* In this case we just want to return the size of the
* log as the amount of space left.
*/
xfs_alert(log->l_mp, "xlog_space_left: head behind tail");
xfs_alert(log->l_mp,
"xlog_space_left: head behind tail\n"
" tail_cycle = %d, tail_bytes = %d\n"
" GH cycle = %d, GH bytes = %d",
tail_cycle, tail_bytes, head_cycle, head_bytes);
" tail_cycle = %d, tail_bytes = %d",
tail_cycle, tail_bytes);
xfs_alert(log->l_mp,
" GH cycle = %d, GH bytes = %d",
head_cycle, head_bytes);
ASSERT(0);
free_bytes = log->l_logsize;
}
@ -1652,8 +1672,13 @@ xlog_cksum(
if (xfs_sb_version_haslogv2(&log->l_mp->m_sb)) {
union xlog_in_core2 *xhdr = (union xlog_in_core2 *)rhead;
int i;
int xheads;
for (i = 1; i < log->l_iclog_heads; i++) {
xheads = size / XLOG_HEADER_CYCLE_SIZE;
if (size % XLOG_HEADER_CYCLE_SIZE)
xheads++;
for (i = 1; i < xheads; i++) {
crc = crc32c(crc, &xhdr[i].hic_xheader,
sizeof(struct xlog_rec_ext_header));
}
@ -2028,26 +2053,24 @@ xlog_print_tic_res(
"SWAPEXT"
};
xfs_warn(mp,
"xlog_write: reservation summary:\n"
" trans type = %s (%u)\n"
" unit res = %d bytes\n"
" current res = %d bytes\n"
" total reg = %u bytes (o/flow = %u bytes)\n"
" ophdrs = %u (ophdr space = %u bytes)\n"
" ophdr + reg = %u bytes\n"
" num regions = %u",
((ticket->t_trans_type <= 0 ||
ticket->t_trans_type > XFS_TRANS_TYPE_MAX) ?
xfs_warn(mp, "xlog_write: reservation summary:");
xfs_warn(mp, " trans type = %s (%u)",
((ticket->t_trans_type <= 0 ||
ticket->t_trans_type > XFS_TRANS_TYPE_MAX) ?
"bad-trans-type" : trans_type_str[ticket->t_trans_type-1]),
ticket->t_trans_type,
ticket->t_unit_res,
ticket->t_curr_res,
ticket->t_res_arr_sum, ticket->t_res_o_flow,
ticket->t_res_num_ophdrs, ophdr_spc,
ticket->t_res_arr_sum +
ticket->t_res_o_flow + ophdr_spc,
ticket->t_res_num);
ticket->t_trans_type);
xfs_warn(mp, " unit res = %d bytes",
ticket->t_unit_res);
xfs_warn(mp, " current res = %d bytes",
ticket->t_curr_res);
xfs_warn(mp, " total reg = %u bytes (o/flow = %u bytes)",
ticket->t_res_arr_sum, ticket->t_res_o_flow);
xfs_warn(mp, " ophdrs = %u (ophdr space = %u bytes)",
ticket->t_res_num_ophdrs, ophdr_spc);
xfs_warn(mp, " ophdr + reg = %u bytes",
ticket->t_res_arr_sum + ticket->t_res_o_flow + ophdr_spc);
xfs_warn(mp, " num regions = %u",
ticket->t_res_num);
for (i = 0; i < ticket->t_res_num; i++) {
uint r_type = ticket->t_res_arr[i].r_type;

1
fs/xfs/xfs_log.h
View file

@ -147,6 +147,7 @@ int xfs_log_mount(struct xfs_mount *mp,
xfs_daddr_t start_block,
int num_bblocks);
int xfs_log_mount_finish(struct xfs_mount *mp);
int xfs_log_mount_cancel(struct xfs_mount *);
xfs_lsn_t xlog_assign_tail_lsn(struct xfs_mount *mp);
xfs_lsn_t xlog_assign_tail_lsn_locked(struct xfs_mount *mp);
void xfs_log_space_wake(struct xfs_mount *mp);

8
fs/xfs/xfs_log_cil.c
View file

@ -307,7 +307,13 @@ xlog_cil_insert_items(
if (!(lidp->lid_flags & XFS_LID_DIRTY))
continue;
list_move_tail(&lip->li_cil, &cil->xc_cil);
/*
* Only move the item if it isn't already at the tail. This is
* to prevent a transient list_empty() state when reinserting
* an item that is already the only item in the CIL.
*/
if (!list_is_last(&lip->li_cil, &cil->xc_cil))
list_move_tail(&lip->li_cil, &cil->xc_cil);
}
/* account for space used by new iovec headers */

2
fs/xfs/xfs_log_priv.h
View file

@ -426,6 +426,8 @@ xlog_recover(
extern int
xlog_recover_finish(
struct xlog *log);
extern int
xlog_recover_cancel(struct xlog *);
extern __le32 xlog_cksum(struct xlog *log, struct xlog_rec_header *rhead,
char *dp, int size);

220
fs/xfs/xfs_log_recover.c
View file

@ -1895,15 +1895,25 @@ xlog_recover_get_buf_lsn(
*/
goto recover_immediately;
case XFS_SB_MAGIC:
/*
* superblock uuids are magic. We may or may not have a
* sb_meta_uuid on disk, but it will be set in the in-core
* superblock. We set the uuid pointer for verification
* according to the superblock feature mask to ensure we check
* the relevant UUID in the superblock.
*/
lsn = be64_to_cpu(((struct xfs_dsb *)blk)->sb_lsn);
uuid = &((struct xfs_dsb *)blk)->sb_uuid;
if (xfs_sb_version_hasmetauuid(&mp->m_sb))
uuid = &((struct xfs_dsb *)blk)->sb_meta_uuid;
else
uuid = &((struct xfs_dsb *)blk)->sb_uuid;
break;
default:
break;
}
if (lsn != (xfs_lsn_t)-1) {
if (!uuid_equal(&mp->m_sb.sb_uuid, uuid))
if (!uuid_equal(&mp->m_sb.sb_meta_uuid, uuid))
goto recover_immediately;
return lsn;
}
@ -2933,16 +2943,16 @@ xlog_recover_efi_pass2(
struct xlog_recover_item *item,
xfs_lsn_t lsn)
{
int error;
xfs_mount_t *mp = log->l_mp;
xfs_efi_log_item_t *efip;
xfs_efi_log_format_t *efi_formatp;
int error;
struct xfs_mount *mp = log->l_mp;
struct xfs_efi_log_item *efip;
struct xfs_efi_log_format *efi_formatp;
efi_formatp = item->ri_buf[0].i_addr;
efip = xfs_efi_init(mp, efi_formatp->efi_nextents);
if ((error = xfs_efi_copy_format(&(item->ri_buf[0]),
&(efip->efi_format)))) {
error = xfs_efi_copy_format(&item->ri_buf[0], &efip->efi_format);
if (error) {
xfs_efi_item_free(efip);
return error;
}
@ -2950,20 +2960,23 @@ xlog_recover_efi_pass2(
spin_lock(&log->l_ailp->xa_lock);
/*
* xfs_trans_ail_update() drops the AIL lock.
* The EFI has two references. One for the EFD and one for EFI to ensure
* it makes it into the AIL. Insert the EFI into the AIL directly and
* drop the EFI reference. Note that xfs_trans_ail_update() drops the
* AIL lock.
*/
xfs_trans_ail_update(log->l_ailp, &efip->efi_item, lsn);
xfs_efi_release(efip);
return 0;
}
/*
* This routine is called when an efd format structure is found in
* a committed transaction in the log. It's purpose is to cancel
* the corresponding efi if it was still in the log. To do this
* it searches the AIL for the efi with an id equal to that in the
* efd format structure. If we find it, we remove the efi from the
* AIL and free it.
* This routine is called when an EFD format structure is found in a committed
* transaction in the log. Its purpose is to cancel the corresponding EFI if it
* was still in the log. To do this it searches the AIL for the EFI with an id
* equal to that in the EFD format structure. If we find it we drop the EFD
* reference, which removes the EFI from the AIL and frees it.
*/
STATIC int
xlog_recover_efd_pass2(
@ -2985,8 +2998,8 @@ xlog_recover_efd_pass2(
efi_id = efd_formatp->efd_efi_id;
/*
* Search for the efi with the id in the efd format structure
* in the AIL.
* Search for the EFI with the id in the EFD format structure in the
* AIL.
*/
spin_lock(&ailp->xa_lock);
lip = xfs_trans_ail_cursor_first(ailp, &cur, 0);
@ -2995,18 +3008,18 @@ xlog_recover_efd_pass2(
efip = (xfs_efi_log_item_t *)lip;
if (efip->efi_format.efi_id == efi_id) {
/*
* xfs_trans_ail_delete() drops the
* AIL lock.
* Drop the EFD reference to the EFI. This
* removes the EFI from the AIL and frees it.
*/
xfs_trans_ail_delete(ailp, lip,
SHUTDOWN_CORRUPT_INCORE);
xfs_efi_item_free(efip);
spin_unlock(&ailp->xa_lock);
xfs_efi_release(efip);
spin_lock(&ailp->xa_lock);
break;
}
}
lip = xfs_trans_ail_cursor_next(ailp, &cur);
}
xfs_trans_ail_cursor_done(&cur);
spin_unlock(&ailp->xa_lock);
@ -3034,6 +3047,11 @@ xlog_recover_do_icreate_pass2(
unsigned int count;
unsigned int isize;
xfs_agblock_t length;
int blks_per_cluster;
int bb_per_cluster;
int cancel_count;
int nbufs;
int i;
icl = (struct xfs_icreate_log *)item->ri_buf[0].i_addr;
if (icl->icl_type != XFS_LI_ICREATE) {
@ -3092,22 +3110,45 @@ xlog_recover_do_icreate_pass2(
}
/*
* Inode buffers can be freed. Do not replay the inode initialisation as
* we could be overwriting something written after this inode buffer was
* cancelled.
*
* XXX: we need to iterate all buffers and only init those that are not
* cancelled. I think that a more fine grained factoring of
* xfs_ialloc_inode_init may be appropriate here to enable this to be
* done easily.
* The icreate transaction can cover multiple cluster buffers and these
* buffers could have been freed and reused. Check the individual
* buffers for cancellation so we don't overwrite anything written after
* a cancellation.
*/
if (xlog_check_buffer_cancelled(log,
XFS_AGB_TO_DADDR(mp, agno, agbno), length, 0))
return 0;
blks_per_cluster = xfs_icluster_size_fsb(mp);
bb_per_cluster = XFS_FSB_TO_BB(mp, blks_per_cluster);
nbufs = length / blks_per_cluster;
for (i = 0, cancel_count = 0; i < nbufs; i++) {
xfs_daddr_t daddr;
xfs_ialloc_inode_init(mp, NULL, buffer_list, count, agno, agbno, length,
be32_to_cpu(icl->icl_gen));
return 0;
daddr = XFS_AGB_TO_DADDR(mp, agno,
agbno + i * blks_per_cluster);
if (xlog_check_buffer_cancelled(log, daddr, bb_per_cluster, 0))
cancel_count++;
}
/*
* We currently only use icreate for a single allocation at a time. This
* means we should expect either all or none of the buffers to be
* cancelled. Be conservative and skip replay if at least one buffer is
* cancelled, but warn the user that something is awry if the buffers
* are not consistent.
*
* XXX: This must be refined to only skip cancelled clusters once we use
* icreate for multiple chunk allocations.
*/
ASSERT(!cancel_count || cancel_count == nbufs);
if (cancel_count) {
if (cancel_count != nbufs)
xfs_warn(mp,
"WARNING: partial inode chunk cancellation, skipped icreate.");
trace_xfs_log_recover_icreate_cancel(log, icl);
return 0;
}
trace_xfs_log_recover_icreate_recover(log, icl);
return xfs_ialloc_inode_init(mp, NULL, buffer_list, count, agno, agbno,
length, be32_to_cpu(icl->icl_gen));
}
STATIC void
@ -3385,14 +3426,24 @@ xlog_recover_add_to_cont_trans(
char *ptr, *old_ptr;
int old_len;
/*
* If the transaction is empty, the header was split across this and the
* previous record. Copy the rest of the header.
*/
if (list_empty(&trans->r_itemq)) {
/* finish copying rest of trans header */
ASSERT(len < sizeof(struct xfs_trans_header));
if (len > sizeof(struct xfs_trans_header)) {
xfs_warn(log->l_mp, "%s: bad header length", __func__);
return -EIO;
}
xlog_recover_add_item(&trans->r_itemq);
ptr = (char *)&trans->r_theader +
sizeof(xfs_trans_header_t) - len;
sizeof(struct xfs_trans_header) - len;
memcpy(ptr, dp, len);
return 0;
}
/* take the tail entry */
item = list_entry(trans->r_itemq.prev, xlog_recover_item_t, ri_list);
@ -3441,7 +3492,19 @@ xlog_recover_add_to_trans(
ASSERT(0);
return -EIO;
}
if (len == sizeof(xfs_trans_header_t))
if (len > sizeof(struct xfs_trans_header)) {
xfs_warn(log->l_mp, "%s: bad header length", __func__);
ASSERT(0);
return -EIO;
}
/*
* The transaction header can be arbitrarily split across op
* records. If we don't have the whole thing here, copy what we
* do have and handle the rest in the next record.
*/
if (len == sizeof(struct xfs_trans_header))
xlog_recover_add_item(&trans->r_itemq);
memcpy(&trans->r_theader, dp, len);
return 0;
@ -3744,7 +3807,7 @@ xlog_recover_process_efi(
* free the memory associated with it.
*/
set_bit(XFS_EFI_RECOVERED, &efip->efi_flags);
xfs_efi_release(efip, efip->efi_format.efi_nextents);
xfs_efi_release(efip);
return -EIO;
}
}
@ -3757,11 +3820,11 @@ xlog_recover_process_efi(
for (i = 0; i < efip->efi_format.efi_nextents; i++) {
extp = &(efip->efi_format.efi_extents[i]);
error = xfs_free_extent(tp, extp->ext_start, extp->ext_len);
error = xfs_trans_free_extent(tp, efdp, extp->ext_start,
extp->ext_len);
if (error)
goto abort_error;
xfs_trans_log_efd_extent(tp, efdp, extp->ext_start,
extp->ext_len);
}
set_bit(XFS_EFI_RECOVERED, &efip->efi_flags);
@ -3793,10 +3856,10 @@ xlog_recover_process_efi(
*/
STATIC int
xlog_recover_process_efis(
struct xlog *log)
struct xlog *log)
{
xfs_log_item_t *lip;
xfs_efi_log_item_t *efip;
struct xfs_log_item *lip;
struct xfs_efi_log_item *efip;
int error = 0;
struct xfs_ail_cursor cur;
struct xfs_ail *ailp;
@ -3820,7 +3883,7 @@ xlog_recover_process_efis(
/*
* Skip EFIs that we've already processed.
*/
efip = (xfs_efi_log_item_t *)lip;
efip = container_of(lip, struct xfs_efi_log_item, efi_item);
if (test_bit(XFS_EFI_RECOVERED, &efip->efi_flags)) {
lip = xfs_trans_ail_cursor_next(ailp, &cur);
continue;
@ -3839,6 +3902,50 @@ xlog_recover_process_efis(
return error;
}
/*
* A cancel occurs when the mount has failed and we're bailing out. Release all
* pending EFIs so they don't pin the AIL.
*/
STATIC int
xlog_recover_cancel_efis(
struct xlog *log)
{
struct xfs_log_item *lip;
struct xfs_efi_log_item *efip;
int error = 0;
struct xfs_ail_cursor cur;
struct xfs_ail *ailp;
ailp = log->l_ailp;
spin_lock(&ailp->xa_lock);
lip = xfs_trans_ail_cursor_first(ailp, &cur, 0);
while (lip != NULL) {
/*
* We're done when we see something other than an EFI.
* There should be no EFIs left in the AIL now.
*/
if (lip->li_type != XFS_LI_EFI) {
#ifdef DEBUG
for (; lip; lip = xfs_trans_ail_cursor_next(ailp, &cur))
ASSERT(lip->li_type != XFS_LI_EFI);
#endif
break;
}
efip = container_of(lip, struct xfs_efi_log_item, efi_item);
spin_unlock(&ailp->xa_lock);
xfs_efi_release(efip);
spin_lock(&ailp->xa_lock);
lip = xfs_trans_ail_cursor_next(ailp, &cur);
}
xfs_trans_ail_cursor_done(&cur);
spin_unlock(&ailp->xa_lock);
return error;
}
/*
* This routine performs a transaction to null out a bad inode pointer
* in an agi unlinked inode hash bucket.
@ -4532,11 +4639,13 @@ xlog_recover(
xfs_sb_has_incompat_log_feature(&log->l_mp->m_sb,
XFS_SB_FEAT_INCOMPAT_LOG_UNKNOWN)) {
xfs_warn(log->l_mp,
"Superblock has unknown incompatible log features (0x%x) enabled.\n"
"The log can not be fully and/or safely recovered by this kernel.\n"
"Please recover the log on a kernel that supports the unknown features.",
"Superblock has unknown incompatible log features (0x%x) enabled.",
(log->l_mp->m_sb.sb_features_log_incompat &
XFS_SB_FEAT_INCOMPAT_LOG_UNKNOWN));
xfs_warn(log->l_mp,
"The log can not be fully and/or safely recovered by this kernel.");
xfs_warn(log->l_mp,
"Please recover the log on a kernel that supports the unknown features.");
return -EINVAL;
}
@ -4612,6 +4721,17 @@ xlog_recover_finish(
return 0;
}
int
xlog_recover_cancel(
struct xlog *log)
{
int error = 0;
if (log->l_flags & XLOG_RECOVERY_NEEDED)
error = xlog_recover_cancel_efis(log);
return error;
}
#if defined(DEBUG)
/*

28
fs/xfs/xfs_mount.c
View file

@ -615,14 +615,14 @@ xfs_default_resblks(xfs_mount_t *mp)
*/
int
xfs_mountfs(
xfs_mount_t *mp)
struct xfs_mount *mp)
{
xfs_sb_t *sbp = &(mp->m_sb);
xfs_inode_t *rip;
__uint64_t resblks;
uint quotamount = 0;
uint quotaflags = 0;
int error = 0;
struct xfs_sb *sbp = &(mp->m_sb);
struct xfs_inode *rip;
__uint64_t resblks;
uint quotamount = 0;
uint quotaflags = 0;
int error = 0;
xfs_sb_mount_common(mp, sbp);
@ -799,7 +799,9 @@ xfs_mountfs(
}
/*
* log's mount-time initialization. Perform 1st part recovery if needed
* Log's mount-time initialization. The first part of recovery can place
* some items on the AIL, to be handled when recovery is finished or
* cancelled.
*/
error = xfs_log_mount(mp, mp->m_logdev_targp,
XFS_FSB_TO_DADDR(mp, sbp->sb_logstart),
@ -910,9 +912,9 @@ xfs_mountfs(
}
/*
* Finish recovering the file system. This part needed to be
* delayed until after the root and real-time bitmap inodes
* were consistently read in.
* Finish recovering the file system. This part needed to be delayed
* until after the root and real-time bitmap inodes were consistently
* read in.
*/
error = xfs_log_mount_finish(mp);
if (error) {
@ -955,8 +957,10 @@ xfs_mountfs(
xfs_rtunmount_inodes(mp);
out_rele_rip:
IRELE(rip);
cancel_delayed_work_sync(&mp->m_reclaim_work);
xfs_reclaim_inodes(mp, SYNC_WAIT);
out_log_dealloc:
xfs_log_unmount(mp);
xfs_log_mount_cancel(mp);
out_fail_wait:
if (mp->m_logdev_targp && mp->m_logdev_targp != mp->m_ddev_targp)
xfs_wait_buftarg(mp->m_logdev_targp);

57
fs/xfs/xfs_rtalloc.c
View file

@ -757,31 +757,30 @@ xfs_rtallocate_extent_size(
/*
* Allocate space to the bitmap or summary file, and zero it, for growfs.
*/
STATIC int /* error */
STATIC int
xfs_growfs_rt_alloc(
xfs_mount_t *mp, /* file system mount point */
xfs_extlen_t oblocks, /* old count of blocks */
xfs_extlen_t nblocks, /* new count of blocks */
xfs_inode_t *ip) /* inode (bitmap/summary) */
struct xfs_mount *mp, /* file system mount point */
xfs_extlen_t oblocks, /* old count of blocks */
xfs_extlen_t nblocks, /* new count of blocks */
struct xfs_inode *ip) /* inode (bitmap/summary) */
{
xfs_fileoff_t bno; /* block number in file */
xfs_buf_t *bp; /* temporary buffer for zeroing */
int committed; /* transaction committed flag */
xfs_daddr_t d; /* disk block address */
int error; /* error return value */
xfs_fsblock_t firstblock; /* first block allocated in xaction */
xfs_bmap_free_t flist; /* list of freed blocks */
xfs_fsblock_t fsbno; /* filesystem block for bno */
xfs_bmbt_irec_t map; /* block map output */
int nmap; /* number of block maps */
int resblks; /* space reservation */
xfs_fileoff_t bno; /* block number in file */
struct xfs_buf *bp; /* temporary buffer for zeroing */
int committed; /* transaction committed flag */
xfs_daddr_t d; /* disk block address */
int error; /* error return value */
xfs_fsblock_t firstblock;/* first block allocated in xaction */
struct xfs_bmap_free flist; /* list of freed blocks */
xfs_fsblock_t fsbno; /* filesystem block for bno */
struct xfs_bmbt_irec map; /* block map output */
int nmap; /* number of block maps */
int resblks; /* space reservation */
struct xfs_trans *tp;
/*
* Allocate space to the file, as necessary.
*/
while (oblocks < nblocks) {
xfs_trans_t *tp;
tp = xfs_trans_alloc(mp, XFS_TRANS_GROWFSRT_ALLOC);
resblks = XFS_GROWFSRT_SPACE_RES(mp, nblocks - oblocks);
/*
@ -790,7 +789,7 @@ xfs_growfs_rt_alloc(
error = xfs_trans_reserve(tp, &M_RES(mp)->tr_growrtalloc,
resblks, 0);
if (error)
goto error_cancel;
goto out_trans_cancel;
/*
* Lock the inode.
*/
@ -808,16 +807,16 @@ xfs_growfs_rt_alloc(
if (!error && nmap < 1)
error = -ENOSPC;
if (error)
goto error_cancel;
goto out_bmap_cancel;
/*
* Free any blocks freed up in the transaction, then commit.
*/
error = xfs_bmap_finish(&tp, &flist, &committed);
if (error)
goto error_cancel;
goto out_bmap_cancel;
error = xfs_trans_commit(tp);
if (error)
goto error;
return error;
/*
* Now we need to clear the allocated blocks.
* Do this one block per transaction, to keep it simple.
@ -832,7 +831,7 @@ xfs_growfs_rt_alloc(
error = xfs_trans_reserve(tp, &M_RES(mp)->tr_growrtzero,
0, 0);
if (error)
goto error_cancel;
goto out_trans_cancel;
/*
* Lock the bitmap inode.
*/
@ -846,9 +845,7 @@ xfs_growfs_rt_alloc(
mp->m_bsize, 0);
if (bp == NULL) {
error = -EIO;
error_cancel:
xfs_trans_cancel(tp);
goto error;
goto out_trans_cancel;
}
memset(bp->b_addr, 0, mp->m_sb.sb_blocksize);
xfs_trans_log_buf(tp, bp, 0, mp->m_sb.sb_blocksize - 1);
@ -857,16 +854,20 @@ xfs_growfs_rt_alloc(
*/
error = xfs_trans_commit(tp);
if (error)
goto error;
return error;
}
/*
* Go on to the next extent, if any.
*/
oblocks = map.br_startoff + map.br_blockcount;
}
return 0;
error:
out_bmap_cancel:
xfs_bmap_cancel(&flist);
out_trans_cancel:
xfs_trans_cancel(tp);
return error;
}

16
fs/xfs/xfs_super.c
View file

@ -261,16 +261,8 @@ xfs_parseargs(
mp->m_rtname = kstrndup(value, MAXNAMELEN, GFP_KERNEL);
if (!mp->m_rtname)
return -ENOMEM;
} else if (!strcmp(this_char, MNTOPT_BIOSIZE)) {
if (!value || !*value) {
xfs_warn(mp, "%s option requires an argument",
this_char);
return -EINVAL;
}
if (kstrtoint(value, 10, &iosize))
return -EINVAL;
iosizelog = ffs(iosize) - 1;
} else if (!strcmp(this_char, MNTOPT_ALLOCSIZE)) {
} else if (!strcmp(this_char, MNTOPT_ALLOCSIZE) ||
!strcmp(this_char, MNTOPT_BIOSIZE)) {
if (!value || !*value) {
xfs_warn(mp, "%s option requires an argument",
this_char);
@ -1528,6 +1520,10 @@ xfs_fs_fill_super(
}
}
if (xfs_sb_version_hassparseinodes(&mp->m_sb))
xfs_alert(mp,
"EXPERIMENTAL sparse inode feature enabled. Use at your own risk!");
error = xfs_mountfs(mp);
if (error)
goto out_filestream_unmount;

9
fs/xfs/xfs_symlink.c
View file

@ -240,7 +240,8 @@ xfs_symlink(
if (error)
goto out_trans_cancel;
xfs_ilock(dp, XFS_ILOCK_EXCL | XFS_ILOCK_PARENT);
xfs_ilock(dp, XFS_IOLOCK_EXCL | XFS_ILOCK_EXCL |
XFS_IOLOCK_PARENT | XFS_ILOCK_PARENT);
unlock_dp_on_error = true;
/*
@ -288,7 +289,7 @@ xfs_symlink(
* the transaction cancel unlocking dp so don't do it explicitly in the
* error path.
*/
xfs_trans_ijoin(tp, dp, XFS_ILOCK_EXCL);
xfs_trans_ijoin(tp, dp, XFS_IOLOCK_EXCL | XFS_ILOCK_EXCL);
unlock_dp_on_error = false;
/*
@ -421,7 +422,7 @@ xfs_symlink(
xfs_qm_dqrele(pdqp);
if (unlock_dp_on_error)
xfs_iunlock(dp, XFS_ILOCK_EXCL);
xfs_iunlock(dp, XFS_IOLOCK_EXCL | XFS_ILOCK_EXCL);
return error;
}
@ -501,7 +502,7 @@ xfs_inactive_symlink_rmt(
/*
* Unmap the dead block(s) to the free_list.
*/
error = xfs_bunmapi(tp, ip, 0, size, XFS_BMAPI_METADATA, nmaps,
error = xfs_bunmapi(tp, ip, 0, size, 0, nmaps,
&first_block, &free_list, &done);
if (error)
goto error_bmap_cancel;

34
fs/xfs/xfs_trace.h
View file

@ -2089,6 +2089,40 @@ DEFINE_LOG_RECOVER_INO_ITEM(xfs_log_recover_inode_recover);
DEFINE_LOG_RECOVER_INO_ITEM(xfs_log_recover_inode_cancel);
DEFINE_LOG_RECOVER_INO_ITEM(xfs_log_recover_inode_skip);
DECLARE_EVENT_CLASS(xfs_log_recover_icreate_item_class,
TP_PROTO(struct xlog *log, struct xfs_icreate_log *in_f),
TP_ARGS(log, in_f),
TP_STRUCT__entry(
__field(dev_t, dev)
__field(xfs_agnumber_t, agno)
__field(xfs_agblock_t, agbno)
__field(unsigned int, count)
__field(unsigned int, isize)
__field(xfs_agblock_t, length)
__field(unsigned int, gen)
),
TP_fast_assign(
__entry->dev = log->l_mp->m_super->s_dev;
__entry->agno = be32_to_cpu(in_f->icl_ag);
__entry->agbno = be32_to_cpu(in_f->icl_agbno);
__entry->count = be32_to_cpu(in_f->icl_count);
__entry->isize = be32_to_cpu(in_f->icl_isize);
__entry->length = be32_to_cpu(in_f->icl_length);
__entry->gen = be32_to_cpu(in_f->icl_gen);
),
TP_printk("dev %d:%d agno %u agbno %u count %u isize %u length %u "
"gen %u", MAJOR(__entry->dev), MINOR(__entry->dev),
__entry->agno, __entry->agbno, __entry->count, __entry->isize,
__entry->length, __entry->gen)
)
#define DEFINE_LOG_RECOVER_ICREATE_ITEM(name) \
DEFINE_EVENT(xfs_log_recover_icreate_item_class, name, \
TP_PROTO(struct xlog *log, struct xfs_icreate_log *in_f), \
TP_ARGS(log, in_f))
DEFINE_LOG_RECOVER_ICREATE_ITEM(xfs_log_recover_icreate_cancel);
DEFINE_LOG_RECOVER_ICREATE_ITEM(xfs_log_recover_icreate_recover);
DECLARE_EVENT_CLASS(xfs_discard_class,
TP_PROTO(struct xfs_mount *mp, xfs_agnumber_t agno,
xfs_agblock_t agbno, xfs_extlen_t len),

15
fs/xfs/xfs_trans.c
View file

@ -1019,9 +1019,10 @@ xfs_trans_cancel(
* chunk we've been working on and get a new transaction to continue.
*/
int
xfs_trans_roll(
__xfs_trans_roll(
struct xfs_trans **tpp,
struct xfs_inode *dp)
struct xfs_inode *dp,
int *committed)
{
struct xfs_trans *trans;
struct xfs_trans_res tres;
@ -1052,6 +1053,7 @@ xfs_trans_roll(
if (error)
return error;
*committed = 1;
trans = *tpp;
/*
@ -1074,3 +1076,12 @@ xfs_trans_roll(
xfs_trans_ijoin(trans, dp, 0);
return 0;
}
int
xfs_trans_roll(
struct xfs_trans **tpp,
struct xfs_inode *dp)
{
int committed = 0;
return __xfs_trans_roll(tpp, dp, &committed);
}

9
fs/xfs/xfs_trans.h
View file

@ -213,7 +213,6 @@ void xfs_trans_ijoin(struct xfs_trans *, struct xfs_inode *, uint);
void xfs_trans_log_buf(xfs_trans_t *, struct xfs_buf *, uint, uint);
void xfs_trans_log_inode(xfs_trans_t *, struct xfs_inode *, uint);
struct xfs_efi_log_item *xfs_trans_get_efi(xfs_trans_t *, uint);
void xfs_efi_release(struct xfs_efi_log_item *, uint);
void xfs_trans_log_efi_extent(xfs_trans_t *,
struct xfs_efi_log_item *,
xfs_fsblock_t,
@ -221,11 +220,11 @@ void xfs_trans_log_efi_extent(xfs_trans_t *,
struct xfs_efd_log_item *xfs_trans_get_efd(xfs_trans_t *,
struct xfs_efi_log_item *,
uint);
void xfs_trans_log_efd_extent(xfs_trans_t *,
struct xfs_efd_log_item *,
xfs_fsblock_t,
xfs_extlen_t);
int xfs_trans_free_extent(struct xfs_trans *,
struct xfs_efd_log_item *, xfs_fsblock_t,
xfs_extlen_t);
int xfs_trans_commit(struct xfs_trans *);
int __xfs_trans_roll(struct xfs_trans **, struct xfs_inode *, int *);
int xfs_trans_roll(struct xfs_trans **, struct xfs_inode *);
void xfs_trans_cancel(xfs_trans_t *);
int xfs_trans_ail_init(struct xfs_mount *);

32
fs/xfs/xfs_trans_extfree.c
View file

@ -25,6 +25,7 @@
#include "xfs_trans.h"
#include "xfs_trans_priv.h"
#include "xfs_extfree_item.h"
#include "xfs_alloc.h"
/*
* This routine is called to allocate an "extent free intention"
@ -108,19 +109,30 @@ xfs_trans_get_efd(xfs_trans_t *tp,
}
/*
* This routine is called to indicate that the described
* extent is to be logged as having been freed. It should
* be called once for each extent freed.
* Free an extent and log it to the EFD. Note that the transaction is marked
* dirty regardless of whether the extent free succeeds or fails to support the
* EFI/EFD lifecycle rules.
*/
void
xfs_trans_log_efd_extent(xfs_trans_t *tp,
xfs_efd_log_item_t *efdp,
xfs_fsblock_t start_block,
xfs_extlen_t ext_len)
int
xfs_trans_free_extent(
struct xfs_trans *tp,
struct xfs_efd_log_item *efdp,
xfs_fsblock_t start_block,
xfs_extlen_t ext_len)
{
uint next_extent;
xfs_extent_t *extp;
struct xfs_extent *extp;
int error;
error = xfs_free_extent(tp, start_block, ext_len);
/*
* Mark the transaction dirty, even on error. This ensures the
* transaction is aborted, which:
*
* 1.) releases the EFI and frees the EFD
* 2.) shuts down the filesystem
*/
tp->t_flags |= XFS_TRANS_DIRTY;
efdp->efd_item.li_desc->lid_flags |= XFS_LID_DIRTY;
@ -130,4 +142,6 @@ xfs_trans_log_efd_extent(xfs_trans_t *tp,
extp->ext_start = start_block;
extp->ext_len = ext_len;
efdp->efd_next_extent++;
return error;
}

15
fs/xfs/xfs_trans_priv.h
View file

@ -119,6 +119,21 @@ xfs_trans_ail_delete(
xfs_trans_ail_delete_bulk(ailp, &lip, 1, shutdown_type);
}
static inline void
xfs_trans_ail_remove(
struct xfs_log_item *lip,
int shutdown_type)
{
struct xfs_ail *ailp = lip->li_ailp;
spin_lock(&ailp->xa_lock);
/* xfs_trans_ail_delete() drops the AIL lock */
if (lip->li_flags & XFS_LI_IN_AIL)
xfs_trans_ail_delete(ailp, lip, shutdown_type);
else
spin_unlock(&ailp->xa_lock);
}
void xfs_ail_push(struct xfs_ail *, xfs_lsn_t);
void xfs_ail_push_all(struct xfs_ail *);
void xfs_ail_push_all_sync(struct xfs_ail *);