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[1/3] dm: prevent access to md being deleted

Message ID 4C0E1AAD.1050108@ct.jp.nec.com (mailing list archive)
State Accepted, archived
Delegated to: Alasdair Kergon
Headers show

Commit Message

Kiyoshi Ueda June 8, 2010, 10:25 a.m. UTC 
None
diff mbox

Patch

Index: 2.6.35-rc1/drivers/md/dm.c
===================================================================
--- 2.6.35-rc1.orig/drivers/md/dm.c
+++ 2.6.35-rc1/drivers/md/dm.c
@@ -2141,6 +2141,7 @@  static struct mapped_device *dm_find_md(
 	md = idr_find(&_minor_idr, minor);
 	if (md && (md == MINOR_ALLOCED ||
 		   (MINOR(disk_devt(dm_disk(md))) != minor) ||
+		   dm_deleting_md(md) ||
 		   test_bit(DMF_FREEING, &md->flags))) {
 		md = NULL;
 		goto out;