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[PATCH] md: fix /proc/mdstat refcounting

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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 <[email protected]>
Signed-off-by: Akinbou Mita <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>
This commit is contained in:
Akinobu Mita 2006-10-17 00:09:38 -07:00 • committed by Linus Torvalds
commit e24650c2e7
1 changed files with 1 additions and 0 deletions
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drivers/md/md.c
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@ -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,