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fuse: export fuse_end_request()

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virtio-fs will need to complete requests from outside fs/fuse/dev.c.  Make
the symbol visible.

Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Signed-off-by: Miklos Szeredi <mszeredi@redhat.com>
This commit is contained in:
Stefan Hajnoczi 2018-06-21 09:33:40 +01:00 committed by Miklos Szeredi
parent f22f812d5c
commit 04ec5af077
2 changed files with 15 additions and 9 deletions
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19
fs/fuse/dev.c
View File

@ -255,7 +255,7 @@ static void flush_bg_queue(struct fuse_conn *fc)
* the 'end' callback is called if given, else the reference to the
* request is released
*/
static void request_end(struct fuse_conn *fc, struct fuse_req *req)
void fuse_request_end(struct fuse_conn *fc, struct fuse_req *req)
{
struct fuse_iqueue *fiq = &fc->iq;
bool async = req->args->end;
@ -309,6 +309,7 @@ static void request_end(struct fuse_conn *fc, struct fuse_req *req)
put_request:
fuse_put_request(fc, req);
}
EXPORT_SYMBOL_GPL(fuse_request_end);
static int queue_interrupt(struct fuse_iqueue *fiq, struct fuse_req *req)
{
@ -396,12 +397,12 @@ static void __fuse_request_send(struct fuse_conn *fc, struct fuse_req *req)
req->in.h.unique = fuse_get_unique(fiq);
queue_request(fiq, req);
/* acquire extra reference, since request is still needed
after request_end() */
after fuse_request_end() */
__fuse_get_request(req);
spin_unlock(&fiq->lock);
request_wait_answer(fc, req);
/* Pairs with smp_wmb() in request_end() */
/* Pairs with smp_wmb() in fuse_request_end() */
smp_rmb();
}
}
@ -1151,7 +1152,7 @@ __releases(fiq->lock)
* the pending list and copies request data to userspace buffer. If
* no reply is needed (FORGET) or request has been aborted or there
* was an error during the copying then it's finished by calling
* request_end(). Otherwise add it to the processing list, and set
* fuse_request_end(). Otherwise add it to the processing list, and set
* the 'sent' flag.
*/
static ssize_t fuse_dev_do_read(struct fuse_dev *fud, struct file *file,
@ -1232,7 +1233,7 @@ static ssize_t fuse_dev_do_read(struct fuse_dev *fud, struct file *file,
/* SETXATTR is special, since it may contain too large data */
if (args->opcode == FUSE_SETXATTR)
req->out.h.error = -E2BIG;
request_end(fc, req);
fuse_request_end(fc, req);
goto restart;
}
spin_lock(&fpq->lock);
@ -1275,7 +1276,7 @@ static ssize_t fuse_dev_do_read(struct fuse_dev *fud, struct file *file,
if (!test_bit(FR_PRIVATE, &req->flags))
list_del_init(&req->list);
spin_unlock(&fpq->lock);
request_end(fc, req);
fuse_request_end(fc, req);
return err;
err_unlock:
@ -1799,7 +1800,7 @@ static int copy_out_args(struct fuse_copy_state *cs, struct fuse_args *args,
* the write buffer. The request is then searched on the processing
* list by the unique ID found in the header. If found, then remove
* it from the list and copy the rest of the buffer to the request.
* The request is finished by calling request_end()
* The request is finished by calling fuse_request_end().
*/
static ssize_t fuse_dev_do_write(struct fuse_dev *fud,
struct fuse_copy_state *cs, size_t nbytes)
@ -1889,7 +1890,7 @@ static ssize_t fuse_dev_do_write(struct fuse_dev *fud,
list_del_init(&req->list);
spin_unlock(&fpq->lock);
request_end(fc, req);
fuse_request_end(fc, req);
out:
return err ? err : nbytes;
@ -2029,7 +2030,7 @@ static void end_requests(struct fuse_conn *fc, struct list_head *head)
req->out.h.error = -ECONNABORTED;
clear_bit(FR_SENT, &req->flags);
list_del_init(&req->list);
request_end(fc, req);
fuse_request_end(fc, req);
}
}

5
fs/fuse/fuse_i.h
View File

@ -829,6 +829,11 @@ ssize_t fuse_simple_request(struct fuse_conn *fc, struct fuse_args *args);
int fuse_simple_background(struct fuse_conn *fc, struct fuse_args *args,
gfp_t gfp_flags);
/**
* End a finished request
*/
void fuse_request_end(struct fuse_conn *fc, struct fuse_req *req);
/* Abort all requests */
void fuse_abort_conn(struct fuse_conn *fc);
void fuse_wait_aborted(struct fuse_conn *fc);