diff options
| author | Alexey Dobriyan <adobriyan@gmail.com> | 2007-10-18 03:04:56 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@woody.linux-foundation.org> | 2007-10-18 14:37:20 -0700 |
| commit | 6212e3a388fdda3f19fa660ef5a30edf54d1dcfd (patch) | |
| tree | 7218bbf29af36ff0c36aa2af8323a5206ea44b1c /fs/aio.c | |
| parent | 9cd9a0058dd35268b24fa16795a92c800f4086d4 (diff) | |
| download | linux-6212e3a388fdda3f19fa660ef5a30edf54d1dcfd.tar.gz | |
Remove struct task_struct::io_wait
Hell knows what happened in commit 63b05203af57e7de4f3bb63b8b81d43bc196d32b during 2.6.9 development. Commit introduced io_wait field which remained write-only than and still remains write-only. Also garbage collect macros which "use" io_wait. Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'fs/aio.c')
| -rw-r--r-- | fs/aio.c | 16 |
1 files changed, 2 insertions, 14 deletions
diff --git a/fs/aio.c b/fs/aio.c index d02f43b50a3d..f12db415c0f6 100644 --- a/fs/aio.c +++ b/fs/aio.c @@ -710,18 +710,9 @@ static ssize_t aio_run_iocb(struct kiocb *iocb) /* * Now we are all set to call the retry method in async - * context. By setting this thread's io_wait context - * to point to the wait queue entry inside the currently - * running iocb for the duration of the retry, we ensure - * that async notification wakeups are queued by the - * operation instead of blocking waits, and when notified, - * cause the iocb to be kicked for continuation (through - * the aio_wake_function callback). + * context. */ - BUG_ON(current->io_wait != NULL); - current->io_wait = &iocb->ki_wait; ret = retry(iocb); - current->io_wait = NULL; if (ret != -EIOCBRETRY && ret != -EIOCBQUEUED) { BUG_ON(!list_empty(&iocb->ki_wait.task_list)); @@ -1508,10 +1499,7 @@ static ssize_t aio_setup_iocb(struct kiocb *kiocb) * Simply triggers a retry of the operation via kick_iocb. * * This callback is specified in the wait queue entry in - * a kiocb (current->io_wait points to this wait queue - * entry when an aio operation executes; it is used - * instead of a synchronous wait when an i/o blocking - * condition is encountered during aio). + * a kiocb. * * Note: * This routine is executed with the wait queue lock held. |