diff options
| author |   Paul Mundt <lethal@linux-sh.org> | 2010-08-16 13:32:24 +0900 |
|---|---|---|
| committer | Paul Mundt <lethal@linux-sh.org> | 2010-08-16 13:32:24 +0900 |
| commit | bbcf6e8b66ab2fb5ddab4d0fe40c2e6a5ebe5301 (patch) | |
| tree | 071fa9f86dc04a16570be367d04cff3b00c694ad /drivers/xen/xenfs/xenbus.c | |
| parent | sh: Use __GFP_ZERO for dma_generic_alloc_coherent(). (diff) | |
| parent | Linux 2.6.36-rc1 (diff) | |
| download | linux-dev-bbcf6e8b66ab2fb5ddab4d0fe40c2e6a5ebe5301.tar.xz linux-dev-bbcf6e8b66ab2fb5ddab4d0fe40c2e6a5ebe5301.zip | |
Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6
Conflicts:
arch/sh/include/asm/Kbuild
drivers/Makefile
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
Diffstat (limited to 'drivers/xen/xenfs/xenbus.c')
| -rw-r--r-- | drivers/xen/xenfs/xenbus.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/xen/xenfs/xenbus.c b/drivers/xen/xenfs/xenbus.c index f28ece397361..3b39c3752e21 100644 --- a/drivers/xen/xenfs/xenbus.c +++ b/drivers/xen/xenfs/xenbus.c @@ -124,6 +124,9 @@ static ssize_t xenbus_file_read(struct file *filp, mutex_lock(&u->reply_mutex); while (list_empty(&u->read_buffers)) { mutex_unlock(&u->reply_mutex); + if (filp->f_flags & O_NONBLOCK) + return -EAGAIN; + ret = wait_event_interruptible(u->read_waitq, !list_empty(&u->read_buffers)); if (ret) |