Revision c331eb04b995ad276a7ece4608326f1db4e137d8 authored by NeilBrown on 31 May 2006, 04:27:13 UTC, committed by Linus Torvalds on 31 May 2006, 23:27:11 UTC
From: NeilBrown <neilb@suse.de>

If an error is reported by a drive in a RAID array (which is done via
bi_end_io - in interrupt context), we call md_error and md_new_event which
calls sysfs_notify.  However sysfs_notify grabs a mutex and so cannot be
called in interrupt context.

This patch just creates a variant of md_new_event which avoids the sysfs
call, and uses that.  A better fix for later is to arrange for the event to
be called from user-context.

Note: avoiding the sysfs call isn't a problem as an error will not, by
itself, modify the sync_action attribute.  (We do still need to
wake_up(&md_event_waiters) as an error by itself will modify /proc/mdstat).

Signed-off-by: Neil Brown <neilb@suse.de>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
1 parent a835fa7
History
File Mode Size
Kconfig -rw-r--r-- 17.2 KB
Makefile -rw-r--r-- 921 bytes
calibrate.c -rw-r--r-- 4.7 KB
do_mounts.c -rw-r--r-- 9.1 KB
do_mounts.h -rw-r--r-- 1.7 KB
do_mounts_devfs.c -rw-r--r-- 2.8 KB
do_mounts_initrd.c -rw-r--r-- 3.1 KB
do_mounts_md.c -rw-r--r-- 7.5 KB
do_mounts_rd.c -rw-r--r-- 10.0 KB
initramfs.c -rw-r--r-- 11.0 KB
main.c -rw-r--r-- 17.0 KB
version.c -rw-r--r-- 748 bytes

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