From d3e709e63e97e5f3f129b639991cfe266da60bae Mon Sep 17 00:00:00 2001 From: Matthew Wilcox Date: Thu, 22 Dec 2016 13:30:22 -0500 Subject: idr: Return the deleted entry from idr_remove It is a relatively common idiom (8 instances) to first look up an IDR entry, and then remove it from the tree if it is found, possibly doing further operations upon the entry afterwards. If we change idr_remove() to return the removed object, all of these users can save themselves a walk of the IDR tree. Signed-off-by: Matthew Wilcox --- drivers/target/target_core_user.c | 4 +--- 1 file changed, 1 insertion(+), 3 deletions(-) (limited to 'drivers/target') diff --git a/drivers/target/target_core_user.c b/drivers/target/target_core_user.c index 8041710b6972..18f0ec2e1f9c 100644 --- a/drivers/target/target_core_user.c +++ b/drivers/target/target_core_user.c @@ -642,9 +642,7 @@ static unsigned int tcmu_handle_completions(struct tcmu_dev *udev) WARN_ON(tcmu_hdr_get_op(entry->hdr.len_op) != TCMU_OP_CMD); spin_lock(&udev->commands_lock); - cmd = idr_find(&udev->commands, entry->hdr.cmd_id); - if (cmd) - idr_remove(&udev->commands, cmd->cmd_id); + cmd = idr_remove(&udev->commands, entry->hdr.cmd_id); spin_unlock(&udev->commands_lock); if (!cmd) { -- cgit v1.2.3