diff mbox

[43/88] SQUASHME: pnfsblock: fix bug when decoding block device info.

Message ID 6907342571a9ea8211134ccf39dcdf538bacc146.1307464382.git.rees@umich.edu (mailing list archive)
State New, archived
Headers show

Commit Message

Jim Rees June 7, 2011, 5:31 p.m. UTC 
From: Tao Guo <guotao@nrchpc.ac.cn>

Skip local block device if its gendisk structure is NULL.

Signed-off-by: Tao Guo <guotao@nrchpc.ac.cn>
Signed-off-by: Benny Halevy <bhalevy@panasas.com>
---
 fs/nfs/blocklayout/blocklayoutdev.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
diff mbox

Patch

diff --git a/fs/nfs/blocklayout/blocklayoutdev.c b/fs/nfs/blocklayout/blocklayoutdev.c
index ac5c117..9fc3d46 100644
--- a/fs/nfs/blocklayout/blocklayoutdev.c
+++ b/fs/nfs/blocklayout/blocklayoutdev.c
@@ -375,7 +375,7 @@  static int map_sig_to_device(struct pnfs_blk_sig *sig,
 	struct visible_block_device *vis_dev;
 
 	list_for_each_entry(vis_dev, sdlist, vi_node) {
-		if (vis_dev->vi_mapped)
+		if (vis_dev->vi_mapped || !vis_dev->vi_bdev->bd_disk)
 			continue;
 		mapped = verify_sig(vis_dev->vi_bdev, sig);
 		if (mapped) {