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| author | Brian Foster <bfoster@redhat.com> | 2013-05-30 15:35:50 -0400 |
|---|---|---|
| committer | Miklos Szeredi <mszeredi@suse.cz> | 2013-06-03 15:15:42 +0200 |
| commit | c9ecf989cc7626e9edf8abef79f64b909542129b (patch) | |
| tree | 4d86f444e40c8dfd0157e7b7062290735b1578de /fs | |
| parent | 28420dad233520811c0e0860e7fb4975ed863fc4 (diff) | |
| download | linux-stable-c9ecf989cc7626e9edf8abef79f64b909542129b.tar.gz linux-stable-c9ecf989cc7626e9edf8abef79f64b909542129b.tar.bz2 linux-stable-c9ecf989cc7626e9edf8abef79f64b909542129b.zip | |
fuse: return -EIOCBQUEUED from fuse_direct_IO() for all async requests
If request submission fails for an async request (i.e.,
get_user_pages() returns -ERESTARTSYS), we currently skip the
-EIOCBQUEUED return and drop into wait_for_sync_kiocb() forever.
Avoid this by always returning -EIOCBQUEUED for async requests. If
an error occurs, the error is passed into fuse_aio_complete(),
returned via aio_complete() and thus propagated to userspace via
io_getevents().
Signed-off-by: Brian Foster <bfoster@redhat.com>
Reviewed-by: Maxim Patlasov <MPatlasov@parallels.com>
Signed-off-by: Miklos Szeredi <mszeredi@suse.cz>
Diffstat (limited to 'fs')
| -rw-r--r-- | fs/fuse/file.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/fs/fuse/file.c b/fs/fuse/file.c index d9f467907791..b3ad8d61a162 100644 --- a/fs/fuse/file.c +++ b/fs/fuse/file.c @@ -2432,7 +2432,7 @@ fuse_direct_IO(int rw, struct kiocb *iocb, const struct iovec *iov, fuse_aio_complete(io, ret < 0 ? ret : 0, -1); /* we have a non-extending, async request, so return */ - if (ret > 0 && !is_sync_kiocb(iocb)) + if (!is_sync_kiocb(iocb)) return -EIOCBQUEUED; ret = wait_on_sync_kiocb(iocb); |