From c132678b18c1aeb3f3eaa2ece4aafebd5e2b47a6 Mon Sep 17 00:00:00 2001 From: Luca Berra Date: Sun, 28 Feb 2010 15:46:16 +0100 Subject: allow redefinition of VAR_RUN having mdmon socket under var is painful at shutdown time Signed-off-by: Luca Berra Signed-off-by: NeilBrown --- mdadm.h | 11 +++++++++++ 1 file changed, 11 insertions(+) (limited to 'mdadm.h') diff --git a/mdadm.h b/mdadm.h index df3a056..3628ea0 100644 --- a/mdadm.h +++ b/mdadm.h @@ -68,7 +68,18 @@ extern __off64_t lseek64 __P ((int __fd, __off64_t __offset, int __whence)); #define DEFAULT_BITMAP_DELAY 5 #define DEFAULT_MAX_WRITE_BEHIND 256 +/* VAR_RUN is where pid and socket files used for communicating + * with mdmon normally live. It should be /var/run, but if + * it is too hard to remount /var/run as read-only rather than + * unmounting it at shutdown time, then it should be + * redefined to some place that comfortably persists until + * final shutdown, possibly in /dev if that is a tmpfs. + * Note: VAR_RUN does not need to be writable at shutdown, + * only during boot when "mdmon --takeover" is run. + */ +#ifndef VAR_RUN #define VAR_RUN "/var/run/mdadm" +#endif /* VAR_RUN */ /* ALT_RUN should be somewhere that persists across the pivotroot * from early boot to late boot. * If you don't have /lib/init/rw you might want to use /dev/.something -- cgit