diff options
| -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 | ||
