diff options
| -rw-r--r-- | fs/fuse/fuse_i.h | 24 | ||||
| -rw-r--r-- | fs/fuse/inode.c | 2 |
2 files changed, 23 insertions, 3 deletions
diff --git a/fs/fuse/fuse_i.h b/fs/fuse/fuse_i.h index 7ed1d3c53b8a..46cf933aa3bf 100644 --- a/fs/fuse/fuse_i.h +++ b/fs/fuse/fuse_i.h @@ -94,6 +94,11 @@ struct fuse_out { /** Header returned from userspace */ struct fuse_out_header h; + /* + * The following bitfields are not changed during the request + * processing + */ + /** Last argument is variable length (can be shorter than arg->size) */ unsigned argvar:1; @@ -136,6 +141,12 @@ struct fuse_req { /** refcount */ atomic_t count; + /* + * The following bitfields are either set once before the + * request is queued or setting/clearing them is protected by + * fuse_lock + */ + /** True if the request has reply */ unsigned isreply:1; @@ -250,15 +261,22 @@ struct fuse_conn { u64 reqctr; /** Mount is active */ - unsigned mounted : 1; + unsigned mounted; /** Connection established, cleared on umount, connection abort and device release */ - unsigned connected : 1; + unsigned connected; - /** Connection failed (version mismatch) */ + /** Connection failed (version mismatch). Cannot race with + setting other bitfields since it is only set once in INIT + reply, before any other request, and never cleared */ unsigned conn_error : 1; + /* + * The following bitfields are only for optimization purposes + * and hence races in setting them will not cause malfunction + */ + /** Is fsync not implemented by fs? */ unsigned no_fsync : 1; diff --git a/fs/fuse/inode.c b/fs/fuse/inode.c index 8683e7254d53..c755a0440a66 100644 --- a/fs/fuse/inode.c +++ b/fs/fuse/inode.c @@ -397,6 +397,7 @@ static struct fuse_conn *new_conn(void) init_rwsem(&fc->sbput_sem); kobj_set_kset_s(fc, connections_subsys); kobject_init(&fc->kobj); + atomic_set(&fc->num_waiting, 0); for (i = 0; i < FUSE_MAX_OUTSTANDING; i++) { struct fuse_req *req = fuse_request_alloc(); if (!req) { @@ -492,6 +493,7 @@ static void fuse_send_init(struct fuse_conn *fc) to be exactly one request available */ struct fuse_req *req = fuse_get_request(fc); struct fuse_init_in *arg = &req->misc.init_in; + arg->major = FUSE_KERNEL_VERSION; arg->minor = FUSE_KERNEL_MINOR_VERSION; req->in.h.opcode = FUSE_INIT; |