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authorStefan Hajnoczi <stefanha@redhat.com>2018-06-21 10:34:25 +0200
committerMiklos Szeredi <mszeredi@redhat.com>2019-09-12 14:59:40 +0200
commit14d46d7abc3973a47e8eb0eb5eb87ee8d910a505 (patch)
treedb6a0ac46537b930744c675a9031464a56b50d77 /fs
parentfuse: export fuse_end_request() (diff)
downloadlinux-14d46d7abc3973a47e8eb0eb5eb87ee8d910a505.tar.xz
linux-14d46d7abc3973a47e8eb0eb5eb87ee8d910a505.zip
fuse: export fuse_len_args()
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>
Diffstat (limited to 'fs')
-rw-r--r--fs/fuse/dev.c9
-rw-r--r--fs/fuse/fuse_i.h5
2 files changed, 10 insertions, 4 deletions
diff --git a/fs/fuse/dev.c b/fs/fuse/dev.c
index 2696f000df67..8f36e6485bb2 100644
--- a/fs/fuse/dev.c
+++ b/fs/fuse/dev.c
@@ -177,7 +177,7 @@ static 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;
@@ -187,6 +187,7 @@ 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)
{
@@ -202,8 +203,8 @@ 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->args->in_numargs,
- (struct fuse_arg *) req->args->in_args);
+ fuse_len_args(req->args->in_numargs,
+ (struct fuse_arg *) req->args->in_args);
list_add_tail(&req->list, &fiq->pending);
wake_up(&fiq->waitq);
kill_fasync(&fiq->fasync, SIGIO, POLL_IN);
@@ -1779,7 +1780,7 @@ static int copy_out_args(struct fuse_copy_state *cs, struct fuse_args *args,
{
unsigned reqsize = sizeof(struct fuse_out_header);
- reqsize += len_args(args->out_numargs, args->out_args);
+ reqsize += fuse_len_args(args->out_numargs, args->out_args);
if (reqsize < nbytes || (reqsize > nbytes && !args->out_argvar))
return -EINVAL;
diff --git a/fs/fuse/fuse_i.h b/fs/fuse/fuse_i.h
index 5c50d3da1b0d..39ef981a618c 100644
--- a/fs/fuse/fuse_i.h
+++ b/fs/fuse/fuse_i.h
@@ -971,4 +971,9 @@ 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 */