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btrfs: Don't assign retval of btrfs_try_tree_write_lock/btrfs_tree_read_lock_atomic

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Those function are simple boolean predicates there is no need to assign
their return values to interim variables. Use them directly as
predicates. No functional changes.

Signed-off-by: Nikolay Borisov <nborisov@suse.com>
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
This commit is contained in:
Nikolay Borisov 2019-09-04 20:22:39 +03:00 committed by David Sterba
parent af024ed2e0
commit 65e99c43e9
1 changed files with 3 additions and 6 deletions
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9
fs/btrfs/ctree.c
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@ -2913,15 +2913,13 @@ cow_done:
if (!p->skip_locking) {
level = btrfs_header_level(b);
if (level <= write_lock_level) {
err = btrfs_try_tree_write_lock(b);
if (!err) {
if (!btrfs_try_tree_write_lock(b)) {
btrfs_set_path_blocking(p);
btrfs_tree_lock(b);
}
p->locks[level] = BTRFS_WRITE_LOCK;
} else {
err = btrfs_tree_read_lock_atomic(b);
if (!err) {
if (!btrfs_tree_read_lock_atomic(b)) {
btrfs_set_path_blocking(p);
btrfs_tree_read_lock(b);
}
@ -3055,8 +3053,7 @@ again:
}
level = btrfs_header_level(b);
err = btrfs_tree_read_lock_atomic(b);
if (!err) {
if (!btrfs_tree_read_lock_atomic(b)) {
btrfs_set_path_blocking(p);
btrfs_tree_read_lock(b);
}