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btrfs: Consolidate retval checking of core btree functions

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Core btree functions in btrfs generally return 0 when an item is found,
1 in case the sought item cannot be found and <0 when an error happens.
Consolidate the checks for those conditions in one 'if () {} else if ()
{}' construct rather than 2 separate 'if () {}' statements. This
emphasizes that the handling code pertains to a single function. No
functional changes.

Reviewed-by: Qu Wenruo <wqu@suse.com>
Reviewed-by: Johannes Thumshirn <jthumshirn@suse.de>
Signed-off-by: Nikolay Borisov <nborisov@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
This commit is contained in:
Nikolay Borisov 2018-12-17 11:49:00 +02:00 committed by David Sterba
parent 694c12ed9d
commit b8eeab7fce
1 changed files with 3 additions and 5 deletions
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8
fs/btrfs/inode.c
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@ -6795,9 +6795,7 @@ struct extent_map *btrfs_get_extent(struct btrfs_inode *inode,
if (ret < 0) {
err = ret;
goto out;
}
if (ret != 0) {
} else if (ret > 0) {
if (path->slots[0] == 0)
goto not_found;
path->slots[0]--;
@ -6847,9 +6845,9 @@ struct extent_map *btrfs_get_extent(struct btrfs_inode *inode,
if (ret < 0) {
err = ret;
goto out;
}
if (ret > 0)
} else if (ret > 0) {
goto not_found;
}
leaf = path->nodes[0];
}
btrfs_item_key_to_cpu(leaf, &found_key, path->slots[0]);