From: yangyun <yangyun50@xxxxxxxxxx>
commit 2f3d8ff457982f4055fe8f7bf19d3821ba22c376 upstream.
This may be a typo. The comment has said shared locks are
not allowed when this bit is set. If using shared lock, the
wait in `fuse_file_cached_io_open` may be forever.
Fixes: 205c1d802683 ("fuse: allow parallel dio writes with FUSE_DIRECT_IO_ALLOW_MMAP")
CC: stable@xxxxxxxxxxxxxxx # v6.9
Signed-off-by: yangyun <yangyun50@xxxxxxxxxx>
Reviewed-by: Bernd Schubert <bschubert@xxxxxxx>
Signed-off-by: Miklos Szeredi <mszeredi@xxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
fs/fuse/file.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
--- a/fs/fuse/file.c
+++ b/fs/fuse/file.c
@@ -1345,7 +1345,7 @@ static bool fuse_dio_wr_exclusive_lock(s
/* shared locks are not allowed with parallel page cache IO */
if (test_bit(FUSE_I_CACHE_IO_MODE, &fi->state))
- return false;
+ return true;
/* Parallel dio beyond EOF is not supported, at least for now. */
if (fuse_io_past_eof(iocb, from))
Patches currently in stable-queue which might be from yangyun50@xxxxxxxxxx are
queue-6.11/fuse-use-exclusive-lock-when-fuse_i_cache_io_mode-is-set.patch
