From mboxrd@z Thu Jan 1 00:00:00 1970 From: NeilBrown Subject: [PATCH 006 of 7] md: Allow an md array to appear with 0 drives if it has external metadata. Date: Fri, 14 Dec 2007 17:26:41 +1100 Message-ID: <1071214062641.1908@suse.de> References: <20071214171950.1308.patches@notabene> Return-path: Sender: linux-raid-owner@vger.kernel.org To: Andrew Morton Cc: linux-raid@vger.kernel.org, linux-kernel@vger.kernel.org List-Id: linux-raid.ids Signed-off-by: Neil Brown ### Diffstat output ./drivers/md/md.c | 7 ++++--- 1 file changed, 4 insertions(+), 3 deletions(-) diff .prev/drivers/md/md.c ./drivers/md/md.c --- .prev/drivers/md/md.c 2007-12-14 16:09:03.000000000 +1100 +++ ./drivers/md/md.c 2007-12-14 16:09:09.000000000 +1100 @@ -4650,9 +4650,10 @@ static int md_ioctl(struct inode *inode, */ /* if we are not initialised yet, only ADD_NEW_DISK, STOP_ARRAY, * RUN_ARRAY, and GET_ and SET_BITMAP_FILE are allowed */ - if (!mddev->raid_disks && cmd != ADD_NEW_DISK && cmd != STOP_ARRAY - && cmd != RUN_ARRAY && cmd != SET_BITMAP_FILE - && cmd != GET_BITMAP_FILE) { + if ((!mddev->raid_disks && !mddev->external) + && cmd != ADD_NEW_DISK && cmd != STOP_ARRAY + && cmd != RUN_ARRAY && cmd != SET_BITMAP_FILE + && cmd != GET_BITMAP_FILE) { err = -ENODEV; goto abort_unlock; }