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fuse: no fc->lock for pqueue parts
Remove fc->lock protection from processing queue members, now protected by fpq->lock. Signed-off-by: Miklos Szeredi <mszeredi@suse.cz> Reviewed-by: Ashish Samant <ashish.samant@oracle.com>
This commit is contained in:
parent
efe2800fac
commit
46c34a348b
1 changed files with 2 additions and 14 deletions
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@ -1277,7 +1277,6 @@ static ssize_t fuse_dev_do_read(struct fuse_conn *fc, struct file *file,
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list_del_init(&req->list);
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spin_unlock(&fiq->waitq.lock);
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spin_lock(&fc->lock);
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in = &req->in;
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reqsize = in->h.len;
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/* If request is too large, reply with an error and restart the read */
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@ -1286,21 +1285,18 @@ static ssize_t fuse_dev_do_read(struct fuse_conn *fc, struct file *file,
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/* SETXATTR is special, since it may contain too large data */
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if (in->h.opcode == FUSE_SETXATTR)
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req->out.h.error = -E2BIG;
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spin_unlock(&fc->lock);
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request_end(fc, req);
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goto restart;
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}
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spin_lock(&fpq->lock);
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list_add(&req->list, &fpq->io);
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spin_unlock(&fpq->lock);
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spin_unlock(&fc->lock);
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cs->req = req;
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err = fuse_copy_one(cs, &in->h, sizeof(in->h));
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if (!err)
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err = fuse_copy_args(cs, in->numargs, in->argpages,
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(struct fuse_arg *) in->args, 0);
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fuse_copy_finish(cs);
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spin_lock(&fc->lock);
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spin_lock(&fpq->lock);
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clear_bit(FR_LOCKED, &req->flags);
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if (!fpq->connected) {
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@ -1322,7 +1318,6 @@ static ssize_t fuse_dev_do_read(struct fuse_conn *fc, struct file *file,
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smp_mb__after_atomic();
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if (test_bit(FR_INTERRUPTED, &req->flags))
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queue_interrupt(fiq, req);
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spin_unlock(&fc->lock);
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return reqsize;
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@ -1330,7 +1325,6 @@ static ssize_t fuse_dev_do_read(struct fuse_conn *fc, struct file *file,
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if (!test_bit(FR_PRIVATE, &req->flags))
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list_del_init(&req->list);
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spin_unlock(&fpq->lock);
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spin_unlock(&fc->lock);
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request_end(fc, req);
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return err;
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@ -1898,7 +1892,6 @@ static ssize_t fuse_dev_do_write(struct fuse_conn *fc,
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if (oh.error <= -1000 || oh.error > 0)
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goto err_finish;
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spin_lock(&fc->lock);
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spin_lock(&fpq->lock);
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err = -ENOENT;
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if (!fpq->connected)
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@ -1914,14 +1907,13 @@ static ssize_t fuse_dev_do_write(struct fuse_conn *fc,
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err = -EINVAL;
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if (nbytes != sizeof(struct fuse_out_header))
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goto err_unlock;
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goto err_finish;
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if (oh.error == -ENOSYS)
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fc->no_interrupt = 1;
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else if (oh.error == -EAGAIN)
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queue_interrupt(&fc->iq, req);
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spin_unlock(&fc->lock);
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fuse_copy_finish(cs);
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return nbytes;
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}
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@ -1934,12 +1926,10 @@ static ssize_t fuse_dev_do_write(struct fuse_conn *fc,
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cs->req = req;
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if (!req->out.page_replace)
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cs->move_pages = 0;
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spin_unlock(&fc->lock);
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err = copy_out_args(cs, &req->out, nbytes);
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fuse_copy_finish(cs);
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spin_lock(&fc->lock);
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spin_lock(&fpq->lock);
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clear_bit(FR_LOCKED, &req->flags);
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if (!fpq->connected)
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@ -1949,15 +1939,13 @@ static ssize_t fuse_dev_do_write(struct fuse_conn *fc,
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if (!test_bit(FR_PRIVATE, &req->flags))
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list_del_init(&req->list);
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spin_unlock(&fpq->lock);
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spin_unlock(&fc->lock);
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request_end(fc, req);
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return err ? err : nbytes;
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err_unlock_pq:
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spin_unlock(&fpq->lock);
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err_unlock:
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spin_unlock(&fc->lock);
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err_finish:
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fuse_copy_finish(cs);
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return err;
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