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| author | Josef Bacik <josef@redhat.com> | 2011-10-05 16:00:18 +0200 |
|---|---|---|
| committer | Josef Bacik <josef@redhat.com> | 2011-10-19 21:12:51 +0200 |
| commit | f75b130e9bb361850787e156c79311adb84f551e (patch) | |
| tree | 6bc2fdf8c19f36124583774f07550e26b85de7e5 /fs/btrfs/free-space-cache.c | |
| parent | Btrfs: introduce mount option no_space_cache (diff) | |
| download | linux-f75b130e9bb361850787e156c79311adb84f551e.tar.xz linux-f75b130e9bb361850787e156c79311adb84f551e.zip | |
Btrfs: don't skip writing out a empty block groups cache
I noticed a slight bug where we will not bother writing out the block group
cache's space cache if it's space tree is empty. Since it could have a cluster
or pinned extents that need to be written out this is just not a valid test.
Thanks,
Signed-off-by: Josef Bacik <josef@redhat.com>
Diffstat (limited to 'fs/btrfs/free-space-cache.c')
| -rw-r--r-- | fs/btrfs/free-space-cache.c | 10 |
1 files changed, 6 insertions, 4 deletions
diff --git a/fs/btrfs/free-space-cache.c b/fs/btrfs/free-space-cache.c index 0a8ccdbdd464..b81556ca75ea 100644 --- a/fs/btrfs/free-space-cache.c +++ b/fs/btrfs/free-space-cache.c @@ -575,10 +575,6 @@ int __btrfs_write_out_cache(struct btrfs_root *root, struct inode *inode, INIT_LIST_HEAD(&bitmap_list); - node = rb_first(&ctl->free_space_offset); - if (!node) - return -1; - if (!i_size_read(inode)) return -1; @@ -639,6 +635,12 @@ int __btrfs_write_out_cache(struct btrfs_root *root, struct inode *inode, if (block_group) start = block_group->key.objectid; + node = rb_first(&ctl->free_space_offset); + if (!node && cluster) { + node = rb_first(&cluster->root); + cluster = NULL; + } + /* Write out the extent entries */ do { struct btrfs_free_space_entry *entry; |