Liu Bo fe09e16cc8 Btrfs: export btrfs space shared info to userspace ... Similar to ocfs2, btrfs also supports that extents can be shared by different inodes, and there are some userspace tools requesting for this kind of 'space shared infomation'.[1] ocfs2 uses flag FIEMAP_EXTENT_SHARED, so does btrfs. [1]: http://thr3ads.net/ocfs2-devel/2010/09/489052-PATCH-3-3-shared-du-using-fiemap-to-figure-up-the-shared-extents-per-file-and-the-footprint-in Reviewed-by: David Sterba <dsterba@suse.cz> Signed-off-by: Liu Bo <bo.li.liu@oracle.com> Signed-off-by: Josef Bacik <jbacik@fusionio.com> Signed-off-by: Chris Mason <chris.mason@fusionio.com>		2013-11-11 21:52:54 -05:00
..
tests	Btrfs: add a sanity test for btrfs_split_item	2013-11-11 21:51:02 -05:00
acl.c	Btrfs: skip adding an acl attribute if we don't have to	2012-12-16 20:46:15 -05:00
async-thread.c	Btrfs: eliminate races in worker stopping code	2013-10-04 16:02:13 -04:00
async-thread.h	Btrfs: eliminate races in worker stopping code	2013-10-04 16:02:13 -04:00
backref.c	btrfs: drop unused parameter from btrfs_item_nr	2013-11-11 21:50:48 -05:00
backref.h	Btrfs: allocate prelim_ref with a slab allocater	2013-09-01 08:16:27 -04:00
btrfs_inode.h	Btrfs: check roots last log commit when checking if an inode has been logged	2013-09-21 11:05:24 -04:00
check-integrity.c	Btrfs: Use %z to format size_t	2013-09-01 08:16:19 -04:00
check-integrity.h
compat.h
compression.c	Btrfs: Remove superfluous casts from u64 to unsigned long long	2013-09-01 08:16:08 -04:00
compression.h	btrfs: make static code static & remove dead code	2013-05-06 15:55:23 -04:00
ctree.c	Btrfs: do a full search everytime in btrfs_search_old_slot	2013-11-11 21:51:17 -05:00
ctree.h	Btrfs: add a sanity test for btrfs_split_item	2013-11-11 21:51:02 -05:00
delayed-inode.c	Btrfs: fix printing of non NULL terminated string	2013-09-01 08:16:20 -04:00
delayed-inode.h	[readdir] convert btrfs	2013-06-29 12:57:00 +04:00
delayed-ref.c	Btrfs: get rid of sparse warnings	2013-09-01 08:15:50 -04:00
delayed-ref.h	Btrfs: handle running extent ops with skinny metadata	2013-05-17 21:40:15 -04:00
dev-replace.c	Merge branch 'for-linus' into for-linus-3.12	2013-10-05 10:51:32 -04:00
dev-replace.h	Btrfs: add new sources for device replace code	2012-12-12 17:15:41 -05:00
dir-item.c	btrfs: drop unused parameter from btrfs_item_nr	2013-11-11 21:50:48 -05:00
disk-io.c	Btrfs: add a sanity test for btrfs_split_item	2013-11-11 21:51:02 -05:00
disk-io.h	Btrfs: add a sanity test for btrfs_split_item	2013-11-11 21:51:02 -05:00
export.c	Btrfs: cleanup: don't check the same thing twice	2013-06-14 11:29:30 -04:00
export.h
extent-tree.c	Btrfs: remove path arg from btrfs_truncate_free_space_cache	2013-11-11 21:51:33 -05:00
extent_io.c	Btrfs: export btrfs space shared info to userspace	2013-11-11 21:52:54 -05:00
extent_io.h	btrfs: mark some local function as 'static'	2013-09-01 08:15:51 -04:00
extent_map.c	btrfs: make static code static & remove dead code	2013-05-06 15:55:23 -04:00
extent_map.h	Btrfs: fix bad extent logging	2013-05-06 15:54:34 -04:00
file-item.c	Btrfs: Remove superfluous casts from u64 to unsigned long long	2013-09-01 08:16:08 -04:00
file.c	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mason/linux-btrfs	2013-09-22 14:58:49 -07:00
free-space-cache.c	Btrfs: remove path arg from btrfs_truncate_free_space_cache	2013-11-11 21:51:33 -05:00
free-space-cache.h	Btrfs: remove path arg from btrfs_truncate_free_space_cache	2013-11-11 21:51:33 -05:00
hash.h	btrfs: extended inode refs	2012-10-09 09:14:45 -04:00
inode-item.c	btrfs: drop unused parameter from btrfs_item_nr	2013-11-11 21:50:48 -05:00
inode-map.c	Btrfs: remove path arg from btrfs_truncate_free_space_cache	2013-11-11 21:51:33 -05:00
inode-map.h
inode.c	btrfs: drop unused parameter from btrfs_item_nr	2013-11-11 21:50:48 -05:00
ioctl.c	btrfs: change extent-same to copy entire argument struct	2013-09-21 11:05:31 -04:00
Kconfig	Btrfs: add support for asserts	2013-09-01 08:16:32 -04:00
locking.c	btrfs: make static code static & remove dead code	2013-05-06 15:55:23 -04:00
locking.h	Btrfs: remove btrfs_try_spin_lock	2013-03-14 14:57:10 -04:00
lzo.c	Btrfs: return -1 when lzo compression makes data bigger	2013-09-01 07:57:19 -04:00
Makefile	Btrfs: add a sanity test for btrfs_split_item	2013-11-11 21:51:02 -05:00
math.h	Btrfs: cleanup duplicated division functions	2012-12-11 13:31:30 -05:00
ordered-data.c	Btrfs: kill delay_iput arg to the wait_ordered functions	2013-09-21 11:05:27 -04:00
ordered-data.h	Btrfs: kill delay_iput arg to the wait_ordered functions	2013-09-21 11:05:27 -04:00
orphan.c
print-tree.c	btrfs: drop unused parameter from btrfs_item_nr	2013-11-11 21:50:48 -05:00
print-tree.h	btrfs: make static code static & remove dead code	2013-05-06 15:55:23 -04:00
qgroup.c	Btrfs: Remove superfluous casts from u64 to unsigned long long	2013-09-01 08:16:08 -04:00
raid56.c	Btrfs, raid56: fix memory leak when allocating pages for p/q stripes failed	2013-09-01 08:04:27 -04:00
raid56.h	Btrfs: RAID5 and RAID6	2013-02-01 14:24:23 -05:00
rcu-string.h
reada.c	Btrfs: fix reada debug code compilation	2013-05-06 15:54:55 -04:00
relocation.c	Btrfs: remove path arg from btrfs_truncate_free_space_cache	2013-11-11 21:51:33 -05:00
root-tree.c	Btrfs: insert orphan roots into fs radix tree	2013-10-10 21:30:53 -04:00
scrub.c	Btrfs: improve replacing nocow extents	2013-09-21 11:05:26 -04:00
send.c	btrfs: drop unused parameter from btrfs_item_nr	2013-11-11 21:50:48 -05:00
send.h	btrfs: make static code static & remove dead code	2013-05-06 15:55:23 -04:00
struct-funcs.c
super.c	Btrfs: add a sanity test for btrfs_split_item	2013-11-11 21:51:02 -05:00
sysfs.c	btrfs: fixup/remove module.h usage as required	2013-03-01 15:01:01 -05:00
transaction.c	Btrfs: fix transid verify errors when recovering log tree	2013-10-04 16:02:09 -04:00
transaction.h	btrfs: mark some local function as 'static'	2013-09-01 08:15:51 -04:00
tree-defrag.c	btrfs: remove cache only arguments from defrag path	2013-02-20 12:59:36 -05:00
tree-log.c	Btrfs: drop dir i_size when adding new names on replay	2013-09-21 11:05:25 -04:00
tree-log.h	btrfs: make static code static & remove dead code	2013-05-06 15:55:23 -04:00
ulist.c	Btrfs: fix crash regarding to ulist_add_merge	2013-07-02 11:50:59 -04:00
ulist.h	Btrfs: add a rb_tree to improve performance of ulist search	2013-05-06 15:54:44 -04:00
uuid-tree.c	Btrfs: check UUID tree during mount if required	2013-09-01 08:15:58 -04:00
volumes.c	Merge branch 'for-linus' into for-linus-3.12	2013-10-05 10:51:32 -04:00
volumes.h	Btrfs: add btrfs_alloc_device and switch to it	2013-09-01 08:16:04 -04:00
xattr.c	btrfs: make static code static & remove dead code	2013-05-06 15:55:23 -04:00
xattr.h
zlib.c	btrfs: fix message printing	2012-10-09 09:19:57 -04:00