From cdfda633d235028e9b27381dedb65416409e8729 Mon Sep 17 00:00:00 2001 From: Philipp Reisner Date: Tue, 5 Jul 2011 15:38:59 +0200 Subject: drbd: detach from frozen backing device * drbd-8.3: documentation: Documented detach's --force and disk's --disk-timeout drbd: Implemented the disk-timeout option drbd: Force flag for the detach operation drbd: Allow new IOs while the local disk in in FAILED state drbd: Bitmap IO functions can not return prematurely if the disk breaks drbd: Added a kref to bm_aio_ctx drbd: Hold a reference to ldev while doing meta-data IO drbd: Keep a reference to the bio until the completion handler finished drbd: Implemented wait_until_done_or_disk_failure() drbd: Replaced md_io_mutex by an atomic: md_io_in_use drbd: moved md_io into mdev drbd: Immediately allow completion of IOs, that wait for IO completions on a failed disk drbd: Keep a reference to barrier acked requests Signed-off-by: Philipp Reisner Signed-off-by: Lars Ellenberg --- include/linux/drbd_limits.h | 6 ++++++ 1 file changed, 6 insertions(+) (limited to 'include/linux/drbd_limits.h') diff --git a/include/linux/drbd_limits.h b/include/linux/drbd_limits.h index f1046b13d9f6..ddd332db2a5d 100644 --- a/include/linux/drbd_limits.h +++ b/include/linux/drbd_limits.h @@ -50,6 +50,12 @@ #define DRBD_TIMEOUT_MAX 600 #define DRBD_TIMEOUT_DEF 60 /* 6 seconds */ + /* If backing disk takes longer than disk_timeout, mark the disk as failed */ +#define DRBD_DISK_TIMEOUT_MIN 0 /* 0 = disabled */ +#define DRBD_DISK_TIMEOUT_MAX 6000 /* 10 Minutes */ +#define DRBD_DISK_TIMEOUT_DEF 0 /* disabled */ +#define DRBD_DISK_TIMEOUT_SCALE '1' + /* active connection retries when C_WF_CONNECTION */ #define DRBD_CONNECT_INT_MIN 1 #define DRBD_CONNECT_INT_MAX 120 -- cgit v1.2.3