Commit 5ff5afff authored by NeilBrown's avatar NeilBrown
Browse files

md/bitmap: reduce dependence on sysfs. 



For dm-raid45 we will want to use bitmaps in dm-targets which don't
have entries in sysfs, so cope with the mddev not living in sysfs.

Signed-off-by: default avatarNeilBrown <neilb@suse.de>
parent ac2f40be

drivers/md/bitmap.c

+4 −3
Original line number Diff line number Diff line
@@ -1358,7 +1358,7 @@ void bitmap_endwrite(struct bitmap *bitmap, sector_t offset, unsigned long secto 
		    bitmap->events_cleared < bitmap->mddev->events) {

			bitmap->events_cleared = bitmap->mddev->events;

			bitmap->need_sync = 1;

			sysfs_notify_dirent(bitmap->sysfs_can_clear);

			sysfs_notify_dirent_safe(bitmap->sysfs_can_clear);

		}



		if (!success && ! (*bmc & NEEDED_MASK))
@@ -1643,7 +1643,7 @@ int bitmap_create(mddev_t *mddev) 
	struct file *file = mddev->bitmap_info.file;

	int err;

	sector_t start;

	struct sysfs_dirent *bm;

	struct sysfs_dirent *bm = NULL;



	BUILD_BUG_ON(sizeof(bitmap_super_t) != 256);
@@ -1664,6 +1664,7 @@ int bitmap_create(mddev_t *mddev) 


	bitmap->mddev = mddev;



	if (mddev->kobj.sd)

		bm = sysfs_get_dirent(mddev->kobj.sd, NULL, "bitmap");

	if (bm) {

		bitmap->sysfs_can_clear = sysfs_get_dirent(bm, NULL, "can_clear");