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btrfs: change btrfs_pin_log_trans to return void

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btrfs_pin_log_trans defines the variable "ret" for return value, but it
is not modified after initialization. Further, I find that none of the
callers do handles the return value, so it is safe to drop the unneeded
"ret" and make it return void.

Signed-off-by: zhong jiang <zhongjiang@huawei.com>
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
This commit is contained in:
zhong jiang 2018-08-17 00:37:15 +08:00 • committed by David Sterba
parent 556f3ca88e
commit 45128b08f7
2 changed files with 2 additions and 5 deletions
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5
fs/btrfs/tree-log.c
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@ -205,14 +205,11 @@ static int join_running_log_trans(struct btrfs_root *root)
* until you call btrfs_end_log_trans() or it makes any future
* log transactions wait until you call btrfs_end_log_trans()
*/
int btrfs_pin_log_trans(struct btrfs_root *root)
void btrfs_pin_log_trans(struct btrfs_root *root)
{
int ret = -ENOENT;
mutex_lock(&root->log_mutex);
atomic_inc(&root->log_writers);
mutex_unlock(&root->log_mutex);
return ret;
}
/*