diff options
| author | Brian Foster <bfoster@redhat.com> | 2013-05-15 12:30:07 -0400 |
|---|---|---|
| committer | Anand Avati <avati@redhat.com> | 2013-05-15 17:19:06 -0700 |
| commit | 8a7cda772d34b96c45714160ce4ec3b0c0d5b29b (patch) | |
| tree | bc62ef68236ed6d2ed7c7545783de3aa0bfa867b /contrib/fuse-include/fuse_kernel.h | |
| parent | 68712c33b4c792449e7d49ae348f96f97175bbd9 (diff) | |
mount/fuse: enable fuse real async dio when available
fuse has support for optimized async. direct I/O handling via the
FUSE_ASYNC_DIO init flag. Enable FUSE_ASYNC_DIO when advertised
by fuse.
performance/write-behind: fix dio hang
Also fix a hang observed during aio-stress testing due to conflicting
request handling in write-behind. Overlapping requests are skipped
in pick_winds and may never continue when the conflicting write in
progress returns. Add a wb_process_queue() call after a non-wb request
completes to keep the queue moving.
BUG: 963258
Change-Id: Ifba6e8aba7a7790b288a32067706b75f263105d4
Signed-off-by: Brian Foster <bfoster@redhat.com>
Reviewed-on: http://review.gluster.org/5014
Reviewed-by: Anand Avati <avati@redhat.com>
Tested-by: Gluster Build System <jenkins@build.gluster.com>
Diffstat (limited to 'contrib/fuse-include/fuse_kernel.h')
| -rw-r--r-- | contrib/fuse-include/fuse_kernel.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/contrib/fuse-include/fuse_kernel.h b/contrib/fuse-include/fuse_kernel.h index c6396555c52..0c3a11d54a7 100644 --- a/contrib/fuse-include/fuse_kernel.h +++ b/contrib/fuse-include/fuse_kernel.h @@ -162,6 +162,7 @@ struct fuse_file_lock { #define FUSE_BIG_WRITES (1 << 5) #define FUSE_DONT_MASK (1 << 6) #define FUSE_DO_READDIRPLUS (1 << 13) +#define FUSE_ASYNC_DIO (1 << 15) /** * CUSE INIT request/reply flags |