diff options
| author | Al Viro <viro@zeniv.linux.org.uk> | 2015-04-01 23:42:28 -0400 |
|---|---|---|
| committer | Al Viro <viro@zeniv.linux.org.uk> | 2015-04-11 22:28:27 -0400 |
| commit | e1200fe68f20759f359698f8a8dc81d06d1265f5 (patch) | |
| tree | 2f6a596be0d8d2aa759687be4c0e9f4e0ecc1723 /fs/9p/vfs_dir.c | |
| parent | 9565a5445240cd441f2c670aa7260ee8eb5dff79 (diff) | |
| download | lwn-e1200fe68f20759f359698f8a8dc81d06d1265f5.tar.gz lwn-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.c | 15 |
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); |