| commit | 3f49bdd95855a33eea749304d2e10530a869218b | |
| author | Tejun Heo <tj@kernel.org> | |
| Tue, 29 Sep 2015 21:47:19 +0000 (29 17:47 -0400) | ||
| committer | Tejun Heo <tj@kernel.org> | |
| Wed, 10 Aug 2016 19:02:58 +0000 (10 15:02 -0400) | ||
| tree | fe3b7bd2f627ce5fd66084e9e20beec98df1f471 | treesnapshot (tar.gz zip) |
| parent | 18808354b79622ed11857e41f9044ba17aec5b01 | commitdiff |
percpu_ref: restructure operation mode switching
Restructure atomic/percpu mode switching.
* The users of __percpu_ref_switch_to_atomic/percpu() now call a new
function __percpu_ref_switch_mode() which calls either of the
original switching functions depending on the current state of
ref->force_atomic and the __PERCPU_REF_DEAD flag. The callers no
longer check whether switching is necessary but always invoke
__percpu_ref_switch_mode().
* !ref->confirm_switch waiting is collected into
__percpu_ref_switch_mode().
This patch doesn't cause any behavior differences.
Signed-off-by: Tejun Heo <tj@kernel.org>
Restructure atomic/percpu mode switching.
* The users of __percpu_ref_switch_to_atomic/percpu() now call a new
function __percpu_ref_switch_mode() which calls either of the
original switching functions depending on the current state of
ref->force_atomic and the __PERCPU_REF_DEAD flag. The callers no
longer check whether switching is necessary but always invoke
__percpu_ref_switch_mode().
* !ref->confirm_switch waiting is collected into
__percpu_ref_switch_mode().
This patch doesn't cause any behavior differences.
Signed-off-by: Tejun Heo <tj@kernel.org>
| lib/percpu-refcount.c | diffblobblamehistory |