Gitweb:
http://git.kernel.org/git/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=ca38805945edf5d1f5444b283eed95bb954772e8
Commit: ca38805945edf5d1f5444b283eed95bb954772e8
Parent: c5d79adba7ced41d7ac097c2ab74759d10522dd5
Author: NeilBrown <[EMAIL PROTECTED]>
AuthorDate: Wed Feb 6 01:39:55 2008 -0800
Committer: Linus Torvalds <[EMAIL PROTECTED]>
CommitDate: Wed Feb 6 10:41:18 2008 -0800
md: lock address when changing attributes of component devices
Signed-off-by: Neil Brown <[EMAIL PROTECTED]>
Signed-off-by: Andrew Morton <[EMAIL PROTECTED]>
Signed-off-by: Linus Torvalds <[EMAIL PROTECTED]>
---
drivers/md/md.c | 8 +++++++-
1 files changed, 7 insertions(+), 1 deletions(-)
diff --git a/drivers/md/md.c b/drivers/md/md.c
index 7c9a87b..3975756 100644
--- a/drivers/md/md.c
+++ b/drivers/md/md.c
@@ -2075,12 +2075,18 @@ rdev_attr_store(struct kobject *kobj, struct attribute
*attr,
{
struct rdev_sysfs_entry *entry = container_of(attr, struct
rdev_sysfs_entry, attr);
mdk_rdev_t *rdev = container_of(kobj, mdk_rdev_t, kobj);
+ int rv;
if (!entry->store)
return -EIO;
if (!capable(CAP_SYS_ADMIN))
return -EACCES;
- return entry->store(rdev, page, length);
+ rv = mddev_lock(rdev->mddev);
+ if (!rv) {
+ rv = entry->store(rdev, page, length);
+ mddev_unlock(rdev->mddev);
+ }
+ return rv;
}
static void rdev_free(struct kobject *ko)
-
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