tmp_suning_uos_patched/fs/btrfs
Josef Bacik a6dbd429d8 Btrfs: fix panic when trying to destroy a newly allocated
There is a problem where iget5_locked will look for an inode, not find it, and
then subsequently try to allocate it.  Another CPU will have raced in and
allocated the inode instead, so when iget5_locked gets the inode spin lock again
and does a search, it finds the new inode.  So it goes ahead and calls
destroy_inode on the inode it just allocated.  The problem is we don't set
BTRFS_I(inode)->root until the new inode is completely initialized.  This patch
makes us set root to NULL when alloc'ing a new inode, so when we get to
btrfs_destroy_inode and we see that root is NULL we can just free up the memory
and continue on.  This fixes the panic

http://www.kerneloops.org/submitresult.php?number=812690

Thanks,

Signed-off-by: Josef Bacik <josef@redhat.com>
Signed-off-by: Chris Mason <chris.mason@oracle.com>
2009-11-11 15:53:34 -05:00
..
acl.c Btrfs: fix btrfs acl #ifdef checks 2009-10-13 13:51:39 -04:00
async-thread.c Btrfs: fix deadlock on async thread startup 2009-10-05 09:44:45 -04:00
async-thread.h Btrfs: fix deadlock on async thread startup 2009-10-05 09:44:45 -04:00
btrfs_inode.h Btrfs: avoid tree log commit when there are no changes 2009-10-13 13:35:12 -04:00
compat.h
compression.c Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/mason/btrfs-unstable 2009-09-11 19:07:25 -04:00
compression.h
ctree.c Btrfs: check size of inode backref before adding hardlink 2009-09-24 09:17:31 -04:00
ctree.h Btrfs: add -o discard option 2009-10-14 10:32:49 -04:00
delayed-ref.c
delayed-ref.h
dir-item.c Btrfs: change how subvolumes are organized 2009-09-21 15:56:00 -04:00
disk-io.c Btrfs: avoid tree log commit when there are no changes 2009-10-13 13:35:12 -04:00
disk-io.h
export.c Btrfs: add snapshot/subvolume destroy ioctl 2009-09-21 16:00:26 -04:00
export.h
extent_io.c Btrfs: release delalloc reservations on extent item insertion 2009-10-08 15:21:10 -04:00
extent_io.h Btrfs: release delalloc reservations on extent item insertion 2009-10-08 15:21:10 -04:00
extent_map.c Btrfs: avoid null deref in unpin_extent_cache() 2009-11-11 14:20:18 -05:00
extent_map.h Btrfs: search for an allocation hint while filling file COW 2009-09-18 16:08:52 -04:00
extent-tree.c Btrfs: allow more metadata chunk preallocation 2009-11-11 14:20:20 -05:00
file-item.c
file.c Btrfs: avoid tree log commit when there are no changes 2009-10-13 13:35:12 -04:00
free-space-cache.c Btrfs: fix how we set max_size for free space clusters 2009-11-11 14:20:17 -05:00
free-space-cache.h
hash.h
inode-item.c Btrfs: check size of inode backref before adding hardlink 2009-09-24 09:17:31 -04:00
inode-map.c Btrfs: do not reuse objectid of deleted snapshot/subvol 2009-09-21 15:56:00 -04:00
inode.c Btrfs: fix panic when trying to destroy a newly allocated 2009-11-11 15:53:34 -05:00
ioctl.c Btrfs: fix file clone ioctl for bookend extents 2009-10-09 11:29:53 -04:00
ioctl.h Btrfs: add snapshot/subvolume destroy ioctl 2009-09-21 16:00:26 -04:00
Kconfig
locking.c
locking.h
Makefile
ordered-data.c Btrfs: release delalloc reservations on extent item insertion 2009-10-08 15:21:10 -04:00
ordered-data.h Btrfs: Use PagePrivate2 to track pages in the data=ordered code. 2009-09-11 13:31:07 -04:00
orphan.c Btrfs: change how subvolumes are organized 2009-09-21 15:56:00 -04:00
print-tree.c
print-tree.h
ref-cache.c
ref-cache.h
relocation.c Btrfs: fix deadlock on async thread startup 2009-10-05 09:44:45 -04:00
root-tree.c Btrfs: skip btrfs_release_path in btrfs_update_root and btrfs_del_root 2009-11-11 14:20:18 -05:00
struct-funcs.c
super.c Btrfs: add -o discard option 2009-10-14 10:32:49 -04:00
sysfs.c
transaction.c Btrfs: cleanup transaction starting and fix journal_info usage 2009-11-11 14:20:16 -05:00
transaction.h Btrfs: streamline tree-log btree block writeout 2009-10-13 13:35:12 -04:00
tree-defrag.c
tree-log.c Btrfs: properly wait log writers during log sync 2009-10-14 10:32:48 -04:00
tree-log.h Btrfs: avoid tree log commit when there are no changes 2009-10-13 13:35:12 -04:00
version.h
version.sh
volumes.c Btrfs: introduce missing kfree 2009-09-29 13:51:04 -04:00
volumes.h Btrfs: make balance code choose more wisely when relocating 2009-09-21 19:23:48 -04:00
xattr.c Btrfs: fix btrfs acl #ifdef checks 2009-10-13 13:51:39 -04:00
xattr.h
zlib.c