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authorAl Viro <viro@zeniv.linux.org.uk>2016-07-19 10:08:27 +0300
committerAl Viro <viro@zeniv.linux.org.uk>2016-07-19 10:08:27 +0300
commit7d3a07fcb8a0d5c06718de14fb91fdf1ef20a0e2 (patch)
tree7743a5fb3644c918c94a4bdfcddeba5bcb6a67bf /fs/fuse
parent6a0fb306738994d6f091791aeb11a5dc87ad8f4c (diff)
downloadlinux-7d3a07fcb8a0d5c06718de14fb91fdf1ef20a0e2.tar.xz
fuse: don't mess with blocking signals
just use wait_event_killable{,_exclusive}(). Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Diffstat (limited to 'fs/fuse')
-rw-r--r--fs/fuse/dev.c30
1 files changed, 3 insertions, 27 deletions
diff --git a/fs/fuse/dev.c b/fs/fuse/dev.c
index cbece1221417..9406f35d1a1e 100644
--- a/fs/fuse/dev.c
+++ b/fs/fuse/dev.c
@@ -99,19 +99,6 @@ void fuse_request_free(struct fuse_req *req)
kmem_cache_free(fuse_req_cachep, req);
}
-static void block_sigs(sigset_t *oldset)
-{
- sigset_t mask;
-
- siginitsetinv(&mask, sigmask(SIGKILL));
- sigprocmask(SIG_BLOCK, &mask, oldset);
-}
-
-static void restore_sigs(sigset_t *oldset)
-{
- sigprocmask(SIG_SETMASK, oldset, NULL);
-}
-
void __fuse_get_request(struct fuse_req *req)
{
atomic_inc(&req->count);
@@ -151,15 +138,9 @@ static struct fuse_req *__fuse_get_req(struct fuse_conn *fc, unsigned npages,
atomic_inc(&fc->num_waiting);
if (fuse_block_alloc(fc, for_background)) {
- sigset_t oldset;
- int intr;
-
- block_sigs(&oldset);
- intr = wait_event_interruptible_exclusive(fc->blocked_waitq,
- !fuse_block_alloc(fc, for_background));
- restore_sigs(&oldset);
err = -EINTR;
- if (intr)
+ if (wait_event_killable_exclusive(fc->blocked_waitq,
+ !fuse_block_alloc(fc, for_background)))
goto out;
}
/* Matches smp_wmb() in fuse_set_initialized() */
@@ -446,14 +427,9 @@ static void request_wait_answer(struct fuse_conn *fc, struct fuse_req *req)
}
if (!test_bit(FR_FORCE, &req->flags)) {
- sigset_t oldset;
-
/* Only fatal signals may interrupt this */
- block_sigs(&oldset);
- err = wait_event_interruptible(req->waitq,
+ err = wait_event_killable(req->waitq,
test_bit(FR_FINISHED, &req->flags));
- restore_sigs(&oldset);
-
if (!err)
return;