NFSv4.1/pnfs: Don't ask for a read layout for an empty file.

Signed-off-by: N Trond Myklebust <trond.myklebust@primarydata.com>

NFSv4.1/pnfs: Don't ask for a read layout for an empty file.
Signed-off-by: N Trond Myklebust <trond.myklebust@primarydata.com>
4ae93560 · Trond Myklebust · 4a1e2feb · 4ae93560
隐藏空白更改
内联并排

Showing with 3 addition and 0 deletion

fs/nfs/pnfs.c fs/nfs/pnfs.c +3 -0

未找到文件。
--- a/fs/nfs/pnfs.c
+++ b/fs/nfs/pnfs.c
@@ -1494,6 +1494,9 @@ pnfs_update_layout(struct inode *ino,
 	if (!pnfs_enabled_sb(NFS_SERVER(ino)))
 		goto out;

+	if (iomode == IOMODE_READ && i_size_read(ino) == 0)
+		goto out;
+
 	if (pnfs_within_mdsthreshold(ctx, ino, iomode))
 		goto out;