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authorAkinobu Mita <akinobu.mita@gmail.com>2006-10-17 03:09:38 -0400
committerLinus Torvalds <torvalds@g5.osdl.org>2006-10-17 11:18:43 -0400
commite24650c2e744f99541125a5b023f0d02cad19d14 (patch)
tree59f043a5bddb973feac1b1543cf87970665370c5 /drivers/md
parenta649fd9271773dd0f78e2b9f347bcceecb8827f9 (diff)
[PATCH] md: fix /proc/mdstat refcounting
I have seen mdadm oops after successfully unloading md module. This patch privents from unloading md module while mdadm is polling /proc/mdstat. Cc: Neil Brown <neilb@suse.de> Signed-off-by: Akinbou Mita <akinobu.mita@gmail.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'drivers/md')
-rw-r--r--drivers/md/md.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/md/md.c b/drivers/md/md.c
index 57fa64f93e5f..f7f19088f3be 100644
--- a/drivers/md/md.c
+++ b/drivers/md/md.c
@@ -4912,6 +4912,7 @@ static unsigned int mdstat_poll(struct file *filp, poll_table *wait)
4912} 4912}
4913 4913
4914static struct file_operations md_seq_fops = { 4914static struct file_operations md_seq_fops = {
4915 .owner = THIS_MODULE,
4915 .open = md_seq_open, 4916 .open = md_seq_open,
4916 .read = seq_read, 4917 .read = seq_read,
4917 .llseek = seq_lseek, 4918 .llseek = seq_lseek,