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authorNeil Brown <neilb@suse.de>2007-08-12 01:07:37 +0200
committerAdrian Bunk <bunk@stusta.de>2007-08-12 01:07:37 +0200
commitc6be40c9f51529d66e6b66910aa49693da795603 (patch)
treef531a76cd74c7756fd9ec5cadc12efec4b715ce7
parentb852d1f6463c5a9bf25ac324eac32e9cb1a2eaf7 (diff)
md/bitmap: remove dead code from md/bitmap
bitmap_active is never called, and the BITMAP_ACTIVE flag is never users or tested, so discard them both. Also remove some out-of-date 'todo' comments. Signed-off-by: Neil Brown <neilb@suse.de> Signed-off-by: Adrian Bunk <bunk@kernel.org>
-rw-r--r--drivers/md/bitmap.c22
-rw-r--r--include/linux/raid/bitmap.h1
2 files changed, 0 insertions, 23 deletions
diff --git a/drivers/md/bitmap.c b/drivers/md/bitmap.c
index fa53579b544f..bd345d34d53f 100644
--- a/drivers/md/bitmap.c
+++ b/drivers/md/bitmap.c
@@ -15,9 +15,6 @@
*
* flush after percent set rather than just time based. (maybe both).
* wait if count gets too high, wake when it drops to half.
- * allow bitmap to be mirrored with superblock (before or after...)
- * allow hot-add to re-instate a current device.
- * allow hot-add of bitmap after quiessing device
*/
#include <linux/module.h>
@@ -71,23 +68,6 @@ static inline char * bmname(struct bitmap *bitmap)
return bitmap->mddev ? mdname(bitmap->mddev) : "mdX";
}
-
-/*
- * test if the bitmap is active
- */
-int bitmap_active(struct bitmap *bitmap)
-{
- unsigned long flags;
- int res = 0;
-
- if (!bitmap)
- return res;
- spin_lock_irqsave(&bitmap->lock, flags);
- res = bitmap->flags & BITMAP_ACTIVE;
- spin_unlock_irqrestore(&bitmap->lock, flags);
- return res;
-}
-
#define WRITE_POOL_SIZE 256
/* mempool for queueing pending writes on the bitmap file */
static void *write_pool_alloc(gfp_t gfp_flags, void *data)
@@ -1596,8 +1576,6 @@ int bitmap_create(mddev_t *mddev)
if (!bitmap->bp)
goto error;
- bitmap->flags |= BITMAP_ACTIVE;
-
/* now that we have some pages available, initialize the in-memory
* bitmap from the on-disk bitmap */
start = 0;
diff --git a/include/linux/raid/bitmap.h b/include/linux/raid/bitmap.h
index 899437802aea..48e2d93d23fb 100644
--- a/include/linux/raid/bitmap.h
+++ b/include/linux/raid/bitmap.h
@@ -261,7 +261,6 @@ struct bitmap {
int bitmap_create(mddev_t *mddev);
void bitmap_flush(mddev_t *mddev);
void bitmap_destroy(mddev_t *mddev);
-int bitmap_active(struct bitmap *bitmap);
char *file_path(struct file *file, char *buf, int count);
void bitmap_print_sb(struct bitmap *bitmap);