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fuse: add missing FR_FORCE 

commit 2e38bea99a80eab408adee27f873a188d57b76cb upstream.

fuse_file_put() was missing the "force" flag for the RELEASE request when
sending synchronously (fuseblk).

If this flag is not set, then a sync request may be interrupted before it
is dequeued by the userspace filesystem.  In this case the OPEN won't be
balanced with a RELEASE.

[js] force is a variable, not a bit

Signed-off-by: Miklos Szeredi <mszeredi@redhat.com>
Fixes: 5a18ec176c ("fuse: fix hang of single threaded fuseblk filesystem")
Signed-off-by: Jiri Slaby <jslaby@suse.cz>
Signed-off-by: Willy Tarreau <w@1wt.eu>
This commit is contained in:
Miklos Szeredi 2017-02-22 20:08:25 +01:00 committed by syphyr
parent 62667f711b
commit 432ba57e2e
1 changed files with 1 additions and 0 deletions
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fs/fuse/file.c
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@ -138,6 +138,7 @@ static void fuse_file_put(struct fuse_file *ff, bool sync)
struct fuse_req *req = ff->reserved_req;
if (sync) {
req->force = 1;
req->background = 0;
fuse_request_send(ff->fc, req);
path_put(&req->misc.release.path);