diff options
Diffstat (limited to 'fs/fuse')
-rw-r--r-- | fs/fuse/dev.c | 25 | ||||
-rw-r--r-- | fs/fuse/fuse_i.h | 3 |
2 files changed, 22 insertions, 6 deletions
diff --git a/fs/fuse/dev.c b/fs/fuse/dev.c index d4efb6223e2c..8538b298a6b0 100644 --- a/fs/fuse/dev.c +++ b/fs/fuse/dev.c | |||
@@ -92,30 +92,39 @@ struct fuse_req *fuse_get_req(struct fuse_conn *fc) | |||
92 | { | 92 | { |
93 | struct fuse_req *req; | 93 | struct fuse_req *req; |
94 | sigset_t oldset; | 94 | sigset_t oldset; |
95 | int intr; | ||
95 | int err; | 96 | int err; |
96 | 97 | ||
98 | atomic_inc(&fc->num_waiting); | ||
97 | block_sigs(&oldset); | 99 | block_sigs(&oldset); |
98 | err = wait_event_interruptible(fc->blocked_waitq, !fc->blocked); | 100 | intr = wait_event_interruptible(fc->blocked_waitq, !fc->blocked); |
99 | restore_sigs(&oldset); | 101 | restore_sigs(&oldset); |
100 | if (err) | 102 | err = -EINTR; |
101 | return ERR_PTR(-EINTR); | 103 | if (intr) |
104 | goto out; | ||
102 | 105 | ||
103 | req = fuse_request_alloc(); | 106 | req = fuse_request_alloc(); |
107 | err = -ENOMEM; | ||
104 | if (!req) | 108 | if (!req) |
105 | return ERR_PTR(-ENOMEM); | 109 | goto out; |
106 | 110 | ||
107 | atomic_inc(&fc->num_waiting); | ||
108 | fuse_request_init(req); | 111 | fuse_request_init(req); |
109 | req->in.h.uid = current->fsuid; | 112 | req->in.h.uid = current->fsuid; |
110 | req->in.h.gid = current->fsgid; | 113 | req->in.h.gid = current->fsgid; |
111 | req->in.h.pid = current->pid; | 114 | req->in.h.pid = current->pid; |
115 | req->waiting = 1; | ||
112 | return req; | 116 | return req; |
117 | |||
118 | out: | ||
119 | atomic_dec(&fc->num_waiting); | ||
120 | return ERR_PTR(err); | ||
113 | } | 121 | } |
114 | 122 | ||
115 | void fuse_put_request(struct fuse_conn *fc, struct fuse_req *req) | 123 | void fuse_put_request(struct fuse_conn *fc, struct fuse_req *req) |
116 | { | 124 | { |
117 | if (atomic_dec_and_test(&req->count)) { | 125 | if (atomic_dec_and_test(&req->count)) { |
118 | atomic_dec(&fc->num_waiting); | 126 | if (req->waiting) |
127 | atomic_dec(&fc->num_waiting); | ||
119 | fuse_request_free(req); | 128 | fuse_request_free(req); |
120 | } | 129 | } |
121 | } | 130 | } |
@@ -281,6 +290,10 @@ static void queue_request(struct fuse_conn *fc, struct fuse_req *req) | |||
281 | len_args(req->in.numargs, (struct fuse_arg *) req->in.args); | 290 | len_args(req->in.numargs, (struct fuse_arg *) req->in.args); |
282 | list_add_tail(&req->list, &fc->pending); | 291 | list_add_tail(&req->list, &fc->pending); |
283 | req->state = FUSE_REQ_PENDING; | 292 | req->state = FUSE_REQ_PENDING; |
293 | if (!req->waiting) { | ||
294 | req->waiting = 1; | ||
295 | atomic_inc(&fc->num_waiting); | ||
296 | } | ||
284 | wake_up(&fc->waitq); | 297 | wake_up(&fc->waitq); |
285 | kill_fasync(&fc->fasync, SIGIO, POLL_IN); | 298 | kill_fasync(&fc->fasync, SIGIO, POLL_IN); |
286 | } | 299 | } |
diff --git a/fs/fuse/fuse_i.h b/fs/fuse/fuse_i.h index ee9b83042510..59661c481d9d 100644 --- a/fs/fuse/fuse_i.h +++ b/fs/fuse/fuse_i.h | |||
@@ -159,6 +159,9 @@ struct fuse_req { | |||
159 | /** Data is being copied to/from the request */ | 159 | /** Data is being copied to/from the request */ |
160 | unsigned locked:1; | 160 | unsigned locked:1; |
161 | 161 | ||
162 | /** Request is counted as "waiting" */ | ||
163 | unsigned waiting:1; | ||
164 | |||
162 | /** State of the request */ | 165 | /** State of the request */ |
163 | enum fuse_req_state state; | 166 | enum fuse_req_state state; |
164 | 167 | ||