Trond Myklebust 6c441c254e NFS: Don't invalidate a submounted dentry in nfs_prime_dcache() ... If we're traversing a directory which contains a submounted filesystem, or one that has a referral, the NFS server that is processing the READDIR request will often return information for the underlying (mounted-on) directory. It may, or may not, also return filehandle information. If this happens, and the lookup in nfs_prime_dcache() returns the dentry for the submounted directory, the filehandle comparison will fail, and we call d_invalidate(). Post-commit 8ed936b567 ("vfs: Lazily remove mounts on unlinked files and directories."), this means the entire subtree is unmounted. The following minimal patch addresses this problem by punting on the invalidation if there is a submount. Kudos to Neil Brown <neilb@suse.de> for having tracked down this issue (see link). Reported-by: Nix <nix@esperi.org.uk> Link: http://lkml.kernel.org/r/87iofju9ht.fsf@spindle.srvr.nix Cc: stable@vger.kernel.org # 3.18+ Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com>		2015-03-01 23:23:06 -05:00
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9p
adfs
affs
afs
autofs4	autofs4 copy_dev_ioctl(): keep the value of ->size we'd used for allocation	2015-02-22 11:43:34 -05:00
befs
bfs
btrfs	Merge branch 'for-linus-2' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs	2015-02-22 17:42:14 -08:00
cachefiles
ceph	Merge branch 'for-linus-2' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs	2015-02-22 17:42:14 -08:00
cifs
coda
configfs
cramfs
debugfs	debugfs: leave freeing a symlink body until inode eviction	2015-02-22 11:38:43 -05:00
devpts
dlm
ecryptfs
efivarfs
efs
exofs
exportfs
ext2
ext3
ext4	Ext4 bug fixes for 3.20. We also reserved code points for encryption	2015-02-22 18:05:13 -08:00
f2fs
fat
freevxfs
fscache
fuse
gfs2
hfs
hfsplus
hostfs
hpfs
hppfs
hugetlbfs
isofs
jbd
jbd2
jffs2	Merge branch 'for-linus-2' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs	2015-02-22 17:42:14 -08:00
jfs
kernfs
lockd
logfs
minix
ncpfs
nfs	NFS: Don't invalidate a submounted dentry in nfs_prime_dcache()	2015-03-01 23:23:06 -05:00
nfs_common
nfsd
nilfs2
nls
notify
ntfs
ocfs2
omfs
openpromfs
overlayfs
proc	procfs: fix race between symlink removals and traversals	2015-02-22 11:43:12 -05:00
pstore
qnx4
qnx6
quota
ramfs
reiserfs
romfs
squashfs
sysfs
sysv
ubifs
udf
ufs
xfs	Merge branch 'for-linus-2' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs	2015-02-22 17:42:14 -08:00
aio.c
anon_inodes.c
attr.c
bad_inode.c
binfmt_aout.c
binfmt_elf.c
binfmt_elf_fdpic.c
binfmt_em86.c
binfmt_flat.c
binfmt_misc.c
binfmt_script.c
block_dev.c
buffer.c
char_dev.c
compat.c
compat_binfmt_elf.c
compat_ioctl.c
coredump.c
dax.c
dcache.c
dcookies.c
direct-io.c
drop_caches.c
eventfd.c
eventpoll.c
exec.c
fcntl.c
fhandle.c
file.c
file_table.c
filesystems.c
fs-writeback.c
fs_pin.c
fs_struct.c
inode.c
internal.h
ioctl.c
Kconfig
Kconfig.binfmt
libfs.c
locks.c
Makefile
mbcache.c
mount.h
mpage.c
namei.c
namespace.c
no-block.c
nsfs.c
open.c
pipe.c
pnode.c
pnode.h
posix_acl.c
proc_namespace.c
read_write.c
readdir.c
select.c
seq_file.c
signalfd.c
splice.c
stack.c
stat.c
statfs.c
super.c
sync.c
timerfd.c
utimes.c
xattr.c