[PATCH] prepare vfs_readdir() callers to returning filldir result
It's not the final state, but it allows moving ->readdir() instances
to passing filldir return value to caller of vfs_readdir().
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
diff --git a/fs/nfsd/vfs.c b/fs/nfsd/vfs.c
index 93b22f6..e3e37f7 100644
--- a/fs/nfsd/vfs.c
+++ b/fs/nfsd/vfs.c
@@ -1831,6 +1831,7 @@
struct readdir_data {
char *dirent;
size_t used;
+ int full;
};
static int nfsd_buffered_filldir(void *__buf, const char *name, int namlen,
@@ -1841,8 +1842,10 @@
unsigned int reclen;
reclen = ALIGN(sizeof(struct buffered_dirent) + namlen, sizeof(u64));
- if (buf->used + reclen > PAGE_SIZE)
+ if (buf->used + reclen > PAGE_SIZE) {
+ buf->full = 1;
return -EINVAL;
+ }
de->namlen = namlen;
de->offset = offset;
@@ -1874,9 +1877,13 @@
unsigned int reclen;
buf.used = 0;
+ buf.full = 0;
host_err = vfs_readdir(file, nfsd_buffered_filldir, &buf);
- if (host_err)
+ if (buf.full)
+ host_err = 0;
+
+ if (host_err < 0)
break;
size = buf.used;