From: Miklos Szeredi <mszeredi@redhat.com>
To: virtualization@lists.linux-foundation.org, linux-fsdevel@vger.kernel.org
Cc: Stefan Hajnoczi <stefanha@redhat.com>,
linux-kernel@vger.kernel.org,
"Michael S. Tsirkin" <mst@redhat.com>,
Vivek Goyal <vgoyal@redhat.com>,
"Dr. David Alan Gilbert" <dgilbert@redhat.com>
Subject: [PATCH v4 05/16] fuse: export fuse_len_args()
Date: Tue, 3 Sep 2019 13:40:33 +0200 [thread overview]
Message-ID: <20190903114044.8201-1-mszeredi@redhat.com> (raw)
In-Reply-To: <20190903113640.7984-1-mszeredi@redhat.com>
From: Stefan Hajnoczi <stefanha@redhat.com>
virtio-fs will need to query the length of fuse_arg lists. Make the symbol
visible.
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Signed-off-by: Miklos Szeredi <mszeredi@redhat.com>
---
fs/fuse/dev.c | 7 ++++---
fs/fuse/fuse_i.h | 5 +++++
2 files changed, 9 insertions(+), 3 deletions(-)
diff --git a/fs/fuse/dev.c b/fs/fuse/dev.c
index 137b3de511ac..985654560d1a 100644
--- a/fs/fuse/dev.c
+++ b/fs/fuse/dev.c
@@ -350,7 +350,7 @@ void fuse_put_request(struct fuse_conn *fc, struct fuse_req *req)
}
EXPORT_SYMBOL_GPL(fuse_put_request);
-static unsigned len_args(unsigned numargs, struct fuse_arg *args)
+unsigned int fuse_len_args(unsigned int numargs, struct fuse_arg *args)
{
unsigned nbytes = 0;
unsigned i;
@@ -360,6 +360,7 @@ static unsigned len_args(unsigned numargs, struct fuse_arg *args)
return nbytes;
}
+EXPORT_SYMBOL_GPL(fuse_len_args);
static u64 fuse_get_unique(struct fuse_iqueue *fiq)
{
@@ -375,7 +376,7 @@ static unsigned int fuse_req_hash(u64 unique)
static void queue_request(struct fuse_iqueue *fiq, struct fuse_req *req)
{
req->in.h.len = sizeof(struct fuse_in_header) +
- len_args(req->in.numargs, (struct fuse_arg *) req->in.args);
+ fuse_len_args(req->in.numargs, (struct fuse_arg *) req->in.args);
list_add_tail(&req->list, &fiq->pending);
wake_up_locked(&fiq->waitq);
kill_fasync(&fiq->fasync, SIGIO, POLL_IN);
@@ -1912,7 +1913,7 @@ static int copy_out_args(struct fuse_copy_state *cs, struct fuse_out *out,
if (out->h.error)
return nbytes != reqsize ? -EINVAL : 0;
- reqsize += len_args(out->numargs, out->args);
+ reqsize += fuse_len_args(out->numargs, out->args);
if (reqsize < nbytes || (reqsize > nbytes && !out->argvar))
return -EINVAL;
diff --git a/fs/fuse/fuse_i.h b/fs/fuse/fuse_i.h
index 67521103d3b2..81e436c9620a 100644
--- a/fs/fuse/fuse_i.h
+++ b/fs/fuse/fuse_i.h
@@ -1098,4 +1098,9 @@ int fuse_set_acl(struct inode *inode, struct posix_acl *acl, int type);
/* readdir.c */
int fuse_readdir(struct file *file, struct dir_context *ctx);
+/**
+ * Return the number of bytes in an arguments list
+ */
+unsigned int fuse_len_args(unsigned int numargs, struct fuse_arg *args);
+
#endif /* _FS_FUSE_I_H */
--
2.21.0
next prev parent reply other threads:[~2019-09-03 11:40 UTC|newest]
Thread overview: 23+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-09-03 11:36 [PATCH v4 00/16] virtio-fs: shared file system for virtual machines Miklos Szeredi
2019-09-03 11:36 ` [PATCH v4 01/16] vfs: Create fs_context-aware mount_bdev() replacement Miklos Szeredi
2019-09-03 11:36 ` [PATCH v4 02/16] fuse: convert to use the new mount API Miklos Szeredi
2019-09-03 11:36 ` [PATCH v4 03/16] vfs: subtype handling moved to fuse Miklos Szeredi
2019-09-03 11:36 ` [PATCH v4 04/16] fuse: export fuse_end_request() Miklos Szeredi
2019-09-03 11:40 ` Miklos Szeredi [this message]
2019-09-03 11:41 ` [PATCH v4 06/16] fuse: export fuse_send_init_request() Miklos Szeredi
2019-09-03 11:41 ` [PATCH v4 07/16] fuse: export fuse_get_unique() Miklos Szeredi
2019-09-03 11:41 ` [PATCH v4 08/16] fuse: export fuse_dequeue_forget() function Miklos Szeredi
2019-09-03 11:41 ` [PATCH v4 09/16] fuse: extract fuse_fill_super_common() Miklos Szeredi
2019-09-03 11:41 ` [PATCH v4 10/16] fuse: add fuse_iqueue_ops callbacks Miklos Szeredi
2019-09-03 11:41 ` [PATCH v4 11/16] fuse: separate fuse device allocation and installation in fuse_conn Miklos Szeredi
2019-09-03 11:41 ` [PATCH v4 12/16] fuse: delete dentry if timeout is zero Miklos Szeredi
2019-09-03 11:42 ` [PATCH v4 13/16] fuse: dissociate DESTROY from fuseblk Miklos Szeredi
2019-09-03 11:42 ` [PATCH v4 14/16] fuse: allow skipping control interface and forced unmount Miklos Szeredi
2019-09-03 11:42 ` [PATCH v4 15/16] virtio-fs: add virtiofs filesystem Miklos Szeredi
2019-09-03 13:55 ` Michael S. Tsirkin
2019-09-04 18:16 ` Stefan Hajnoczi
2019-09-04 18:58 ` Michael S. Tsirkin
2019-09-05 19:15 ` Vivek Goyal
2019-09-06 10:22 ` Stefan Hajnoczi
2019-09-06 13:52 ` Michael S. Tsirkin
2019-09-03 11:42 ` [PATCH v4 16/16] virtio-fs: add Documentation/filesystems/virtiofs.rst Miklos Szeredi
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20190903114044.8201-1-mszeredi@redhat.com \
--to=mszeredi@redhat.com \
--cc=dgilbert@redhat.com \
--cc=linux-fsdevel@vger.kernel.org \
--cc=linux-kernel@vger.kernel.org \
--cc=mst@redhat.com \
--cc=stefanha@redhat.com \
--cc=vgoyal@redhat.com \
--cc=virtualization@lists.linux-foundation.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).