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| author | Frediano Ziglio <freddy77@gmail.com> | 2011-08-30 09:46:11 +0200 |
|---|---|---|
| committer | Kevin Wolf <kwolf@redhat.com> | 2011-09-06 11:23:51 +0200 |
| commit | c30e624d5d04efdb581c841f9bf8b06302b96575 (patch) | |
| tree | c8d52ebaac8687324a86a368a2076623f5ee7fc4 /linux-aio.c | |
| parent | f69539b14bdba7a5cd22e1f4bed439b476b17286 (diff) | |
linux aio: some comments
Add some notes about Linux AIO explaining why we don't use AIO in
some situations.
Signed-off-by: Frediano Ziglio <freddy77@gmail.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Diffstat (limited to 'linux-aio.c')
| -rw-r--r-- | linux-aio.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/linux-aio.c b/linux-aio.c index 5fd39327b3..5265a029b2 100644 --- a/linux-aio.c +++ b/linux-aio.c @@ -181,6 +181,7 @@ BlockDriverAIOCB *laio_submit(BlockDriverState *bs, void *aio_ctx, int fd, case QEMU_AIO_READ: io_prep_preadv(iocbs, fd, qiov->iov, qiov->niov, offset); break; + /* Currently Linux kernel does not support other operations */ default: fprintf(stderr, "%s: invalid AIO request type 0x%x.\n", __func__, type); |