| commit | 3d48749d93a3dce732dd30a14002ab90ec4355f3 | |
| author | Tejun Heo <tj@kernel.org> | |
| Mon, 5 Mar 2012 21:15:25 +0000 (5 13:15 -0800) | ||
| committer | Jens Axboe <axboe@kernel.dk> | |
| Tue, 6 Mar 2012 20:27:24 +0000 (6 21:27 +0100) | ||
| tree | 50ce414ec87e590493476cf644092439c5f337fd | treesnapshot (tar.gz zip) |
| parent | 24acfc34fba0b4f62ef9d5c2616eb0faa802b606 | commitdiff |
block: ioc_task_link() can't fail
ioc_task_link() is used to share %current's ioc on clone. If
%current->io_context is set, %current is guaranteed to have refcount
on the ioc and, thus, ioc_task_link() can't fail.
Replace error checking in ioc_task_link() with WARN_ON_ONCE() and make
it just increment refcount and nr_tasks.
-v2: Description typo fix (Vivek).
Signed-off-by: Tejun Heo <tj@kernel.org>
Cc: Vivek Goyal <vgoyal@redhat.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
ioc_task_link() is used to share %current's ioc on clone. If
%current->io_context is set, %current is guaranteed to have refcount
on the ioc and, thus, ioc_task_link() can't fail.
Replace error checking in ioc_task_link() with WARN_ON_ONCE() and make
it just increment refcount and nr_tasks.
-v2: Description typo fix (Vivek).
Signed-off-by: Tejun Heo <tj@kernel.org>
Cc: Vivek Goyal <vgoyal@redhat.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
| include/linux/iocontext.h | diffblobblamehistory | |
| kernel/fork.c | diffblobblamehistory |