Yan Zheng 2c47e605a9 Btrfs: update backrefs while dropping snapshot ... The new backref format has restriction on type of backref item. If a tree block isn't referenced by its owner tree, full backrefs must be used for the pointers in it. When a tree block loses its owner tree's reference, backrefs for the pointers in it should be updated to full backrefs. Current btrfs_drop_snapshot misses the code that updates backrefs, so it's unsafe for general use. This patch adds backrefs update code to btrfs_drop_snapshot. It isn't a problem in the restricted form btrfs_drop_snapshot is used today, but for general snapshot deletion this update is required. Signed-off-by: Yan Zheng <zheng.yan@oracle.com> Signed-off-by: Chris Mason <chris.mason@oracle.com>		2009-07-02 13:41:17 -04:00
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acl.c	Fix btrfs when ACLs are configured out	2009-06-10 11:36:43 -04:00
async-thread.c	Btrfs: init worker struct fields before kthread-run	2009-06-10 20:11:29 -04:00
async-thread.h	Btrfs: add a priority queue to the async thread helpers	2009-04-20 15:53:08 -04:00
btrfs_inode.h	Btrfs: implement FS_IOC_GETFLAGS/SETFLAGS/GETVERSION	2009-06-10 11:29:52 -04:00
compat.h	Btrfs: drop remaining LINUX_KERNEL_VERSION checks and compat code	2009-01-06 09:38:55 -05:00
compression.c	Btrfs: implement FS_IOC_GETFLAGS/SETFLAGS/GETVERSION	2009-06-10 11:29:52 -04:00
compression.h	Btrfs: Add zlib compression support	2008-10-29 14:49:59 -04:00
ctree.c	Btrfs: balance btree more often	2009-06-10 11:29:47 -04:00
ctree.h	Btrfs: update backrefs while dropping snapshot	2009-07-02 13:41:17 -04:00
delayed-ref.c	Btrfs: Mixed back reference (FORWARD ROLLING FORMAT CHANGE)	2009-06-10 11:29:46 -04:00
delayed-ref.h	Btrfs: Mixed back reference (FORWARD ROLLING FORMAT CHANGE)	2009-06-10 11:29:46 -04:00
dir-item.c	Btrfs: leave btree locks spinning more often	2009-03-24 16:14:28 -04:00
disk-io.c	Btrfs: pin buffers during write_dev_supers	2009-06-10 16:49:25 -04:00
disk-io.h	Btrfs: leave btree locks spinning more often	2009-03-24 16:14:28 -04:00
export.c	Btrfs: Mixed back reference (FORWARD ROLLING FORMAT CHANGE)	2009-06-10 11:29:46 -04:00
export.h	NFS support for btrfs - v3	2008-09-25 11:04:06 -04:00
extent_io.c	btrfs: Fix set/clear_extent_bit for 'end == (u64)-1'	2009-06-10 11:29:46 -04:00
extent_io.h	Btrfs: leave btree locks spinning more often	2009-03-24 16:14:28 -04:00
extent_map.c	Btrfs: kill btrfs_cache_create	2009-04-24 15:46:04 -04:00
extent_map.h	Btrfs: Fix csum error for compressed data	2008-11-10 07:34:43 -05:00
extent-tree.c	Btrfs: update backrefs while dropping snapshot	2009-07-02 13:41:17 -04:00
file-item.c	Btrfs: leave btree locks spinning more often	2009-03-24 16:14:28 -04:00
file.c	Btrfs: don't log the inode in file_write while growing the file	2009-07-02 13:41:16 -04:00
free-space-cache.c	Btrfs: add mount -o ssd_spread to spread allocations out	2009-06-10 11:29:52 -04:00
free-space-cache.h	Btrfs: add mount -o ssd_spread to spread allocations out	2009-06-10 11:29:52 -04:00
hash.h	Btrfs: remove crc32c.h and use libcrc32c directly.	2009-06-10 11:29:53 -04:00
inode-item.c	Btrfs: leave btree locks spinning more often	2009-03-24 16:14:28 -04:00
inode-map.c	Btrfs: Fix a trivial warning using max() of u64 vs ULL.	2009-04-27 08:37:49 -04:00
inode.c	Btrfs: account for space we may use in fallocate	2009-07-02 13:41:16 -04:00
ioctl.c	Btrfs: fix the file clone ioctl for preallocated extents	2009-07-02 13:41:16 -04:00
ioctl.h	Btrfs: fix ioctl arg size (userland incompatible change!)	2009-01-16 11:59:08 -05:00
Kconfig	Btrfs: make btrfs acls selectable	2009-02-04 09:28:28 -05:00
locking.c	Btrfs: fix typos in comments	2009-04-02 16:46:06 -04:00
locking.h	Btrfs: fix spinlock assertions on UP systems	2009-03-09 11:45:38 -04:00
Makefile	Btrfs: Mixed back reference (FORWARD ROLLING FORMAT CHANGE)	2009-06-10 11:29:46 -04:00
ordered-data.c	Btrfs: use WRITE_SYNC for synchronous writes	2009-04-20 15:53:08 -04:00
ordered-data.h	Btrfs: add extra flushing for renames and truncates	2009-03-31 14:27:58 -04:00
orphan.c	Btrfs: Create orphan inode records to prevent lost files after a crash	2008-09-25 11:04:05 -04:00
print-tree.c	Btrfs: Mixed back reference (FORWARD ROLLING FORMAT CHANGE)	2009-06-10 11:29:46 -04:00
print-tree.h	Btrfs: Create extent_buffer interface for large blocksizes	2008-09-25 11:03:56 -04:00
ref-cache.c	Btrfs: Make btrfs_drop_snapshot work in larger and more efficient chunks	2009-02-04 09:27:02 -05:00
ref-cache.h	Btrfs: Make btrfs_drop_snapshot work in larger and more efficient chunks	2009-02-04 09:27:02 -05:00
relocation.c	Btrfs: update backrefs while dropping snapshot	2009-07-02 13:41:17 -04:00
root-tree.c	Btrfs: Mixed back reference (FORWARD ROLLING FORMAT CHANGE)	2009-06-10 11:29:46 -04:00
struct-funcs.c	Btrfs: Fix checkpatch.pl warnings	2009-01-05 21:25:51 -05:00
super.c	Btrfs: fix -o nodatasum printk spelling	2009-06-11 09:30:13 -04:00
sysfs.c	Btrfs: Fix checkpatch.pl warnings	2009-01-05 21:25:51 -05:00
transaction.c	Btrfs: update backrefs while dropping snapshot	2009-07-02 13:41:17 -04:00
transaction.h	Btrfs: Mixed back reference (FORWARD ROLLING FORMAT CHANGE)	2009-06-10 11:29:46 -04:00
tree-defrag.c	Btrfs: do extent allocation and reference count updates in the background	2009-03-24 16:14:25 -04:00
tree-log.c	Btrfs: fix extent_buffer leak during tree log replay	2009-06-11 11:24:47 -04:00
tree-log.h	Btrfs: tree logging unlink/rename fixes	2009-03-24 16:14:52 -04:00
version.h	Update Btrfs files for in-kernel usage	2008-09-25 15:41:59 -04:00
version.sh	Btrfs: Fixes for 2.6.28-rc API changes	2008-11-19 21:17:22 -05:00
volumes.c	Btrfs: avoid races between super writeout and device list updates	2009-06-10 15:17:02 -04:00
volumes.h	Btrfs: avoid races between super writeout and device list updates	2009-06-10 15:17:02 -04:00
xattr.c	Btrfs: selinux support	2009-02-04 09:29:13 -05:00
xattr.h	Btrfs: selinux support	2009-02-04 09:29:13 -05:00
zlib.c	Btrfs: Fix checkpatch.pl warnings	2009-01-05 21:25:51 -05:00