Commit e24650c2 authored by Akinobu Mita's avatar Akinobu Mita Committed by Linus Torvalds
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[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 <>
Signed-off-by: default avatarAkinbou Mita <>
Signed-off-by: default avatarAndrew Morton <>
Signed-off-by: default avatarLinus Torvalds <>
parent a649fd92
......@@ -4912,6 +4912,7 @@ static unsigned int mdstat_poll(struct file *filp, poll_table *wait)
static struct file_operations md_seq_fops = {
.owner = THIS_MODULE,
.open = md_seq_open,
.read = seq_read,
.llseek = seq_lseek,
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