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| author | Goldwyn Rodrigues <rgoldwyn@suse.com> | 2019-06-25 20:11:31 +0200 |
|---|---|---|
| committer | David Sterba <dsterba@suse.com> | 2019-07-02 12:30:53 +0200 |
| commit | 9b4851bc48b9346a957a71ca355ecdb7f2759fb8 (patch) | |
| tree | 19dbfddad6b7158dd57f3cebddf028e7335a3687 /fs/btrfs | |
| parent | 83d731a5b228454d7c29ec64fdd93426698f97f6 (diff) | |
| download | lwn-9b4851bc48b9346a957a71ca355ecdb7f2759fb8.tar.gz lwn-9b4851bc48b9346a957a71ca355ecdb7f2759fb8.zip | |
btrfs: Simplify update of space_info in __reserve_metadata_bytes()
We don't need an if-else-if chain where we can use a simple OR since
both conditions are performing the same action. The short-circuit for OR
will ensure that if the first condition is true, can_overcommit() is not
called.
Reviewed-by: Nikolay Borisov <nborisov@suse.com>
Signed-off-by: Goldwyn Rodrigues <rgoldwyn@suse.com>
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
Diffstat (limited to 'fs/btrfs')
| -rw-r--r-- | fs/btrfs/space-info.c | 16 |
1 files changed, 5 insertions, 11 deletions
diff --git a/fs/btrfs/space-info.c b/fs/btrfs/space-info.c index ce33b1addf55..ab7b9ec4c240 100644 --- a/fs/btrfs/space-info.c +++ b/fs/btrfs/space-info.c @@ -967,18 +967,12 @@ static int __reserve_metadata_bytes(struct btrfs_fs_info *fs_info, used = btrfs_space_info_used(space_info, true); /* - * If we have enough space then hooray, make our reservation and carry - * on. If not see if we can overcommit, and if we can, hooray carry on. - * If not things get more complicated. + * Carry on if we have enough space (short-circuit) OR call + * can_overcommit() to ensure we can overcommit to continue. */ - if (used + orig_bytes <= space_info->total_bytes) { - btrfs_space_info_update_bytes_may_use(fs_info, space_info, - orig_bytes); - trace_btrfs_space_reservation(fs_info, "space_info", - space_info->flags, orig_bytes, 1); - ret = 0; - } else if (can_overcommit(fs_info, space_info, orig_bytes, flush, - system_chunk)) { + if ((used + orig_bytes <= space_info->total_bytes) || + can_overcommit(fs_info, space_info, orig_bytes, flush, + system_chunk)) { btrfs_space_info_update_bytes_may_use(fs_info, space_info, orig_bytes); trace_btrfs_space_reservation(fs_info, "space_info", |