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| author | Chris Mason <clm@fb.com> | 2015-04-23 08:02:49 -0700 |
|---|---|---|
| committer | Chris Mason <clm@fb.com> | 2015-04-23 17:47:34 -0700 |
| commit | 85db36cfb3de1422aeafb4e2ce83396333b744bb (patch) | |
| tree | b78e13e2f33cd34fc862f81e9a23e178a242dffa | |
| parent | e082f56313f374d723b0366978ddb062c8fe79ea (diff) | |
| download | linux-85db36cfb3de1422aeafb4e2ce83396333b744bb.tar.gz linux-85db36cfb3de1422aeafb4e2ce83396333b744bb.tar.bz2 linux-85db36cfb3de1422aeafb4e2ce83396333b744bb.zip | |
Btrfs: fix inode cache writeout
The code to fix stalls during free spache cache IO wasn't using
the correct root when waiting on the IO for inode caches. This
is only a problem when the inode cache is enabled with
mount -o inode_cache
This fixes the inode cache writeout to preserve any error values and
makes sure not to override the root when inode cache writeout is done.
Reported-by: Filipe Manana <fdmanana@suse.com>
Signed-off-by: Chris Mason <clm@fb.com>
| -rw-r--r-- | fs/btrfs/free-space-cache.c | 10 |
1 files changed, 7 insertions, 3 deletions
diff --git a/fs/btrfs/free-space-cache.c b/fs/btrfs/free-space-cache.c index 253cb74b0e27..d773f229d14d 100644 --- a/fs/btrfs/free-space-cache.c +++ b/fs/btrfs/free-space-cache.c @@ -1149,7 +1149,8 @@ int btrfs_wait_cache_io(struct btrfs_root *root, if (!inode) return 0; - root = root->fs_info->tree_root; + if (block_group) + root = root->fs_info->tree_root; /* Flush the dirty pages in the cache file. */ ret = flush_dirty_cache(inode); @@ -3463,9 +3464,12 @@ int btrfs_write_out_ino_cache(struct btrfs_root *root, if (!btrfs_test_opt(root, INODE_MAP_CACHE)) return 0; + memset(&io_ctl, 0, sizeof(io_ctl)); ret = __btrfs_write_out_cache(root, inode, ctl, NULL, &io_ctl, - trans, path, 0) || - btrfs_wait_cache_io(root, trans, NULL, &io_ctl, path, 0); + trans, path, 0); + if (!ret) + ret = btrfs_wait_cache_io(root, trans, NULL, &io_ctl, path, 0); + if (ret) { btrfs_delalloc_release_metadata(inode, inode->i_size); #ifdef DEBUG |