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authorAl Viro <viro@zeniv.linux.org.uk>2015-04-01 23:42:28 -0400
committerAl Viro <viro@zeniv.linux.org.uk>2015-04-11 22:28:27 -0400
commite1200fe68f20759f359698f8a8dc81d06d1265f5 (patch)
tree2f6a596be0d8d2aa759687be4c0e9f4e0ecc1723 /fs/9p/vfs_dir.c
parent9565a5445240cd441f2c670aa7260ee8eb5dff79 (diff)
downloadblackbird-op-linux-e1200fe68f20759f359698f8a8dc81d06d1265f5.tar.gz
blackbird-op-linux-e1200fe68f20759f359698f8a8dc81d06d1265f5.zip
9p: switch p9_client_read() to passing struct iov_iter *
... and make it loop Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Diffstat (limited to 'fs/9p/vfs_dir.c')
-rw-r--r--fs/9p/vfs_dir.c15
1 files changed, 11 insertions, 4 deletions
diff --git a/fs/9p/vfs_dir.c b/fs/9p/vfs_dir.c
index 4f1151088ebe..76c3b1ab6361 100644
--- a/fs/9p/vfs_dir.c
+++ b/fs/9p/vfs_dir.c
@@ -33,6 +33,7 @@
#include <linux/inet.h>
#include <linux/idr.h>
#include <linux/slab.h>
+#include <linux/uio.h>
#include <net/9p/9p.h>
#include <net/9p/client.h>
@@ -115,6 +116,7 @@ static int v9fs_dir_readdir(struct file *file, struct dir_context *ctx)
int buflen;
int reclen = 0;
struct p9_rdir *rdir;
+ struct kvec kvec;
p9_debug(P9_DEBUG_VFS, "name %pD\n", file);
fid = file->private_data;
@@ -124,16 +126,21 @@ static int v9fs_dir_readdir(struct file *file, struct dir_context *ctx)
rdir = v9fs_alloc_rdir_buf(file, buflen);
if (!rdir)
return -ENOMEM;
+ kvec.iov_base = rdir->buf;
+ kvec.iov_len = buflen;
while (1) {
if (rdir->tail == rdir->head) {
- err = v9fs_file_readn(file, rdir->buf, NULL,
- buflen, ctx->pos);
- if (err <= 0)
+ struct iov_iter to;
+ int n;
+ iov_iter_kvec(&to, READ | ITER_KVEC, &kvec, 1, buflen);
+ n = p9_client_read(file->private_data, ctx->pos, &to,
+ &err);
+ if (err)
return err;
rdir->head = 0;
- rdir->tail = err;
+ rdir->tail = n;
}
while (rdir->head < rdir->tail) {
p9stat_init(&st);
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