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Commit b2a2703c authored by NeilBrown's avatar NeilBrown Committed by Linus Torvalds
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[PATCH] md: set default_bitmap_offset properly in set_array_info 



If an array is created using set_array_info, default_bitmap_offset isn't set
properly meaning that an internal bitmap cannot be hot-added until the array
is stopped and re-assembled.

Signed-off-by: default avatarNeil Brown <neilb@suse.de>
Signed-off-by: default avatarAndrew Morton <akpm@osdl.org>
Signed-off-by: default avatarLinus Torvalds <torvalds@osdl.org>
parent b5ab28a3

drivers/md/md.c

+3 −1
Original line number Diff line number Diff line
@@ -1028,7 +1028,6 @@ static int super_1_validate(mddev_t *mddev, mdk_rdev_t *rdev) 
		mddev->size = le64_to_cpu(sb->size)/2;

		mddev->events = le64_to_cpu(sb->events);

		mddev->bitmap_offset = 0;

		mddev->default_bitmap_offset = 0;

		mddev->default_bitmap_offset = 1024;

		

		mddev->recovery_cp = le64_to_cpu(sb->resync_offset);
@@ -2932,6 +2931,9 @@ static int set_array_info(mddev_t * mddev, mdu_array_info_t *info) 


	mddev->sb_dirty      = 1;



	mddev->default_bitmap_offset = MD_SB_BYTES >> 9;

	mddev->bitmap_offset = 0;



	/*

	 * Generate a 128 bit UUID

	 */