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| author | Arne Jansen <sensille@gmx.net> | 2010-11-13 00:17:56 +0100 |
|---|---|---|
| committer | Chris Mason <chris.mason@oracle.com> | 2010-11-22 04:26:04 +0100 |
| commit | 6f33434850ed87dc5e56b60ebbad3d3cf405f296 (patch) | |
| tree | e70433c2c1fe59180bb8a92341f73931eff7ddb0 /fs/btrfs/extent-tree.c | |
| parent | btrfs: fix panic caused by direct IO (diff) | |
| download | linux-6f33434850ed87dc5e56b60ebbad3d3cf405f296.tar.xz linux-6f33434850ed87dc5e56b60ebbad3d3cf405f296.zip | |
btrfs: Fix early enospc because 'unused' calculated with wrong sign.
'unused' calculated with wrong sign in reserve_metadata_bytes().
This might have lead to unwanted over-reservations.
Signed-off-by: Arne Jansen <sensille@gmx.net>
Reviewed-by: Josef Bacik <josef@redhat.com>
Signed-off-by: Chris Mason <chris.mason@oracle.com>
Diffstat (limited to '')
| -rw-r--r-- | fs/btrfs/extent-tree.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/fs/btrfs/extent-tree.c b/fs/btrfs/extent-tree.c index a541bc87f04c..ddaf6340fe7f 100644 --- a/fs/btrfs/extent-tree.c +++ b/fs/btrfs/extent-tree.c @@ -3413,7 +3413,7 @@ again: * our reservation. */ if (unused <= space_info->total_bytes) { - unused -= space_info->total_bytes; + unused = space_info->total_bytes - unused; if (unused >= num_bytes) { if (!reserved) space_info->bytes_reserved += orig_bytes; |