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OpenCloudOS-Kernel
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fuse: check conn_error earlier 

fc->conn_error is set once in FUSE_INIT reply and never cleared.  Check it
in request allocation, there's no sense in doing all the preparation if
sending will surely fail.

Signed-off-by: Miklos Szeredi <mszeredi@suse.cz>
Reviewed-by: Ashish Samant <ashish.samant@oracle.com>
This commit is contained in:
Miklos Szeredi 2015-07-01 16:25:57 +02:00
parent 5437f24172
commit de15522646
1 changed files with 4 additions and 2 deletions
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6
fs/fuse/dev.c
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@ -168,6 +168,10 @@ static struct fuse_req *__fuse_get_req(struct fuse_conn *fc, unsigned npages,
if (!fc->connected)
goto out;
err = -ECONNREFUSED;
if (fc->conn_error)
goto out;
req = fuse_request_alloc(npages);
err = -ENOMEM;
if (!req) {
@ -498,8 +502,6 @@ static void __fuse_request_send(struct fuse_conn *fc, struct fuse_req *req)
spin_lock(&fc->lock);
if (!fc->connected)
req->out.h.error = -ENOTCONN;
else if (fc->conn_error)
req->out.h.error = -ECONNREFUSED;
else {
req->in.h.unique = fuse_get_unique(fc);
queue_request(fc, req);