From: Satoru Takeuchi <takeuchi_satoru@jp.fujitsu.com>
Hi Benjamin and aio guys,
I fixed wrong comments on the aio subsystem. Although it causes no binary
change, I confirmed the kernel applying this patch can boot on my i386 box.
Since I doesn't subscribe this list, please Cc me if you reply this mail.
Thanks,
Satoru
---
Fix wrong comments on the aio subsystem.
- sys_io_destroy(): acutually return -EINVAL if the context pointed to
is invalidIndex: linux-2.6.33-rc4/fs/aio.c
- sys_io_getevents(): An argument specifying timeout is not `when',
but `timeout'.
- sys_io_getevents(): Should describe what is returned if this syscall
succeeds.
Signed-off-by: Satoru Takeuchi <takeuchi_satoru@jp.fujitsu.com>
Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com>
Reviewed-by: Jeff Moyer <jmoyer@redhat.com>
---
fs/aio.c | 21 +++++++++++----------
1 file changed, 11 insertions(+), 10 deletions(-)
--- linux-2.6.35-rc3.orig/fs/aio.c
+++ linux-2.6.35-rc3/fs/aio.c
@@ -1277,7 +1277,7 @@ out:
/* sys_io_destroy:
* Destroy the aio_context specified. May cancel any outstanding
* AIOs and block on completion. Will fail with -ENOSYS if not
- * implemented. May fail with -EFAULT if the context pointed to
+ * implemented. May fail with -EINVAL if the context pointed to
* is invalid.
*/
SYSCALL_DEFINE1(io_destroy, aio_context_t, ctx)
@@ -1795,15 +1795,16 @@ SYSCALL_DEFINE3(io_cancel, aio_context_t
/* io_getevents:
* Attempts to read at least min_nr events and up to nr events from
- * the completion queue for the aio_context specified by ctx_id. May
- * fail with -EINVAL if ctx_id is invalid, if min_nr is out of range,
- * if nr is out of range, if when is out of range. May fail with
- * -EFAULT if any of the memory specified to is invalid. May return
- * 0 or < min_nr if no events are available and the timeout specified
- * by when has elapsed, where when == NULL specifies an infinite
- * timeout. Note that the timeout pointed to by when is relative and
- * will be updated if not NULL and the operation blocks. Will fail
- * with -ENOSYS if not implemented.
+ * the completion queue for the aio_context specified by ctx_id. If
+ * it succeeds, the number of read events is returned. May fail with
+ * -EINVAL if ctx_id is invalid, if min_nr is out of range, if nr is
+ * out of range, if timeout is out of range. May fail with -EFAULT
+ * if any of the memory specified is invalid. May return 0 or
+ * < min_nr if the timeout specified by timeout has elapsed
+ * before sufficient events are available, where timeout == NULL
+ * specifies an infinite timeout. Note that the timeout pointed to by
+ * timeout is relative and will be updated if not NULL and the
+ * operation blocks. Will fail with -ENOSYS if not implemented.
*/
SYSCALL_DEFINE5(io_getevents, aio_context_t, ctx_id,
long, min_nr,
--
--
