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| author | Luis de Bethencourt <luisbg@osg.samsung.com> | 2016-03-30 21:53:38 +0100 |
|---|---|---|
| committer | David Sterba <dsterba@suse.com> | 2016-05-06 15:22:49 +0200 |
| commit | ae02d1bd070767e109f4a6f1bb1f466e9698a355 (patch) | |
| tree | 5ab2fcbd71eb2a8e6187543d2d16cf6ea2c80530 /fs/btrfs/super.c | |
| parent | 88be159c905a2b4f6d59afa352bef410afb6af02 (diff) | |
| download | linux-ae02d1bd070767e109f4a6f1bb1f466e9698a355.tar.bz2 | |
btrfs: fix mixed block count of available space
Metadata for mixed block is already accounted in total data and should not
be counted as part of the free metadata space.
Signed-off-by: Luis de Bethencourt <luisbg@osg.samsung.com>
Link: https://bugzilla.kernel.org/show_bug.cgi?id=114281
Signed-off-by: David Sterba <dsterba@suse.com>
Diffstat (limited to 'fs/btrfs/super.c')
| -rw-r--r-- | fs/btrfs/super.c | 16 |
1 files changed, 13 insertions, 3 deletions
diff --git a/fs/btrfs/super.c b/fs/btrfs/super.c index 00b8f37cc306..bdca79ce45f1 100644 --- a/fs/btrfs/super.c +++ b/fs/btrfs/super.c @@ -2051,6 +2051,7 @@ static int btrfs_statfs(struct dentry *dentry, struct kstatfs *buf) struct btrfs_block_rsv *block_rsv = &fs_info->global_block_rsv; int ret; u64 thresh = 0; + int mixed = 0; /* * holding chunk_muext to avoid allocating new chunks, holding @@ -2076,8 +2077,17 @@ static int btrfs_statfs(struct dentry *dentry, struct kstatfs *buf) } } } - if (found->flags & BTRFS_BLOCK_GROUP_METADATA) - total_free_meta += found->disk_total - found->disk_used; + + /* + * Metadata in mixed block goup profiles are accounted in data + */ + if (!mixed && found->flags & BTRFS_BLOCK_GROUP_METADATA) { + if (found->flags & BTRFS_BLOCK_GROUP_DATA) + mixed = 1; + else + total_free_meta += found->disk_total - + found->disk_used; + } total_used += found->disk_used; } @@ -2115,7 +2125,7 @@ static int btrfs_statfs(struct dentry *dentry, struct kstatfs *buf) */ thresh = 4 * 1024 * 1024; - if (total_free_meta - thresh < block_rsv->size) + if (!mixed && total_free_meta - thresh < block_rsv->size) buf->f_bavail = 0; buf->f_type = BTRFS_SUPER_MAGIC; |