Chris Mason 44fb551163 Btrfs: Fix oops and use after free during space balancing ... The btrfs allocator uses list_for_each to walk the available block groups when searching for free blocks. It starts off with a hint to help find the best block group for a given allocation. The hint is resolved into a block group, but we don't properly check to make sure the block group we find isn't in the middle of being freed due to filesystem shrinking or balancing. If it is being freed, the list pointers in it are bogus and can't be trusted. But, the code happily goes along and uses them in the list_for_each loop, leading to all kinds of fun. The fix used here is to check to make sure the block group we find really is on the list before we use it. list_del_init is used when removing it from the list, so we can do a proper check. The allocation clustering code has a similar bug where it will trust the block group in the current free space cluster. If our allocation flags have changed (going from single spindle dup to raid1 for example) because the drives in the FS have changed, we're not allowed to use the old block group any more. The fix used here is to check the current cluster against the current allocation flags. Signed-off-by: Chris Mason <chris.mason@oracle.com>		2009-06-04 15:41:27 -04:00
..
acl.c	Btrfs: fix acl caching	2009-04-27 13:18:26 -04:00
async-thread.c	Btrfs: add a priority queue to the async thread helpers	2009-04-20 15:53:08 -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: add extra flushing for renames and truncates	2009-03-31 14:27:58 -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: removed unused #include <version.h>'s	2009-01-21 10:49:16 -05:00
compression.h	Btrfs: Add zlib compression support	2008-10-29 14:49:59 -04:00
crc32c.h	Btrfs: Drop the hardware crc32c asm code	2009-01-07 19:56:59 -05:00
ctree.c	Btrfs: Don't loop forever on metadata IO failures	2009-05-14 14:00:32 -04:00
ctree.h	Btrfs: fix fallocate deadlock on inode extent lock	2009-04-24 15:46:05 -04:00
delayed-ref.c	Btrfs: remove unused ftrace include	2009-04-02 17:02:55 -04:00
delayed-ref.h	Btrfs: make sure btrfs_update_delayed_ref doesn't increase ref_mod	2009-03-25 09:55:11 -04:00
dir-item.c	Btrfs: leave btree locks spinning more often	2009-03-24 16:14:28 -04:00
disk-io.c	Btrfs: remove some WARN_ONs in the IO failure path	2009-05-14 14:00:33 -04:00
disk-io.h	Btrfs: leave btree locks spinning more often	2009-03-24 16:14:28 -04:00
export.c	Btrfs: Fix checkpatch.pl warnings	2009-01-05 21:25:51 -05:00
export.h	NFS support for btrfs - v3	2008-09-25 11:04:06 -04:00
extent-tree.c	Btrfs: Fix oops and use after free during space balancing	2009-06-04 15:41:27 -04:00
extent_io.c	Btrfs: remove #if 0 code	2009-04-27 07:40:52 -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
file-item.c	Btrfs: leave btree locks spinning more often	2009-03-24 16:14:28 -04:00
file.c	Btrfs: remove #if 0 code	2009-04-27 07:40:52 -04:00
free-space-cache.c	Btrfs: Fix a bunch of printk() warnings.	2009-04-27 08:37:49 -04:00
free-space-cache.h	Btrfs: rework allocation clustering	2009-04-03 09:47:43 -04:00
hash.h	Switch btrfs_name_hash() to crc32c	2008-09-25 11:04:06 -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: remove some WARN_ONs in the IO failure path	2009-05-14 14:00:33 -04:00
ioctl.c	Btrfs: remove outdated comment in btrfs_ioctl_resize()	2009-05-14 14:00:33 -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: simplify makefile	2009-04-24 15:46:03 -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: Fix checkpatch.pl warnings	2009-01-05 21:25:51 -05:00
print-tree.h
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
root-tree.c	Btrfs: Fix checkpatch.pl warnings	2009-01-05 21:25:51 -05:00
struct-funcs.c	Btrfs: Fix checkpatch.pl warnings	2009-01-05 21:25:51 -05:00
super.c	Btrfs: make show_options result match actual option names	2009-05-14 14:00:34 -04:00
sysfs.c	Btrfs: Fix checkpatch.pl warnings	2009-01-05 21:25:51 -05:00
transaction.c	Btrfs: fix deadlocks and stalls on dead root removal	2009-04-24 15:46:05 -04:00
transaction.h	Btrfs: reduce stalls during transaction commit	2009-03-24 16:14:26 -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 fallocate deadlock on inode extent lock	2009-04-24 15:46:05 -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: set device->total_disk_bytes when adding new device	2009-06-04 09:23:57 -04:00
volumes.h	Btrfs: When shrinking, only update disk size on success	2009-04-27 07:40:51 -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