md: use sector_t in bitmap_get_counter

bitmap_get_counter returns the number of sectors covered
by the counter in a pass-by-reference variable.
In some cases this can be very large, so make it a sector_t
for safety.

Signed-off-by: NeilBrown <neilb@suse.de>

5 files changed, 19 insertions, 19 deletions

diff --git a/drivers/md/bitmap.c b/drivers/md/bitmap.c
index e4fb58db5454..65d567373213 100644
--- a/drivers/md/bitmap.c
+++ b/drivers/md/bitmap.c
@@ -1101,7 +1101,7 @@ static void bitmap_count_page(struct bitmap *bitmap, sector_t offset, int inc)
         bitmap_checkfree(bitmap, page);
 }
 static bitmap_counter_t *bitmap_get_counter(struct bitmap *bitmap,
-                                            sector_t offset, int *blocks,
+                                            sector_t offset, sector_t *blocks,
                                             int create);
 
 /*
@@ -1115,7 +1115,7 @@ void bitmap_daemon_work(mddev_t *mddev)
         unsigned long j;
         unsigned long flags;
         struct page *page = NULL, *lastpage = NULL;
-        int blocks;
+        sector_t blocks;
         void *paddr;
         struct dm_dirty_log *log = mddev->bitmap_info.log;
 
@@ -1258,7 +1258,7 @@ void bitmap_daemon_work(mddev_t *mddev)
 }
 
 static bitmap_counter_t *bitmap_get_counter(struct bitmap *bitmap,
-                                            sector_t offset, int *blocks,
+                                            sector_t offset, sector_t *blocks,
                                             int create)
 __releases(bitmap->lock)
 __acquires(bitmap->lock)
@@ -1316,7 +1316,7 @@ int bitmap_startwrite(struct bitmap *bitmap, sector_t offset, unsigned long sect
         }
 
         while (sectors) {
-                int blocks;
+                sector_t blocks;
                 bitmap_counter_t *bmc;
 
                 spin_lock_irq(&bitmap->lock);
@@ -1381,7 +1381,7 @@ void bitmap_endwrite(struct bitmap *bitmap, sector_t offset, unsigned long secto
                 success = 0;
 
         while (sectors) {
-                int blocks;
+                sector_t blocks;
                 unsigned long flags;
                 bitmap_counter_t *bmc;
 
@@ -1423,7 +1423,7 @@ void bitmap_endwrite(struct bitmap *bitmap, sector_t offset, unsigned long secto
 }
 EXPORT_SYMBOL(bitmap_endwrite);
 
-static int __bitmap_start_sync(struct bitmap *bitmap, sector_t offset, int *blocks,
+static int __bitmap_start_sync(struct bitmap *bitmap, sector_t offset, sector_t *blocks,
                                int degraded)
 {
         bitmap_counter_t *bmc;
@@ -1452,7 +1452,7 @@ static int __bitmap_start_sync(struct bitmap *bitmap, sector_t offset, int *bloc
         return rv;
 }
 
-int bitmap_start_sync(struct bitmap *bitmap, sector_t offset, int *blocks,
+int bitmap_start_sync(struct bitmap *bitmap, sector_t offset, sector_t *blocks,
                       int degraded)
 {
         /* bitmap_start_sync must always report on multiples of whole
@@ -1463,7 +1463,7 @@ int bitmap_start_sync(struct bitmap *bitmap, sector_t offset, int *blocks,
          * Return the 'or' of the result.
          */
         int rv = 0;
-        int blocks1;
+        sector_t blocks1;
 
         *blocks = 0;
         while (*blocks < (PAGE_SIZE>>9)) {
@@ -1476,7 +1476,7 @@ int bitmap_start_sync(struct bitmap *bitmap, sector_t offset, int *blocks,
 }
 EXPORT_SYMBOL(bitmap_start_sync);
 
-void bitmap_end_sync(struct bitmap *bitmap, sector_t offset, int *blocks, int aborted)
+void bitmap_end_sync(struct bitmap *bitmap, sector_t offset, sector_t *blocks, int aborted)
 {
         bitmap_counter_t *bmc;
         unsigned long flags;
@@ -1515,7 +1515,7 @@ void bitmap_close_sync(struct bitmap *bitmap)
          * RESYNC bit wherever it is still on
          */
         sector_t sector = 0;
-        int blocks;
+        sector_t blocks;
         if (!bitmap)
                 return;
         while (sector < bitmap->mddev->resync_max_sectors) {
@@ -1528,7 +1528,7 @@ EXPORT_SYMBOL(bitmap_close_sync);
 void bitmap_cond_end_sync(struct bitmap *bitmap, sector_t sector)
 {
         sector_t s = 0;
-        int blocks;
+        sector_t blocks;
 
         if (!bitmap)
                 return;
@@ -1562,7 +1562,7 @@ static void bitmap_set_memory_bits(struct bitmap *bitmap, sector_t offset, int n
          * be 0 at this point
          */
 
-        int secs;
+        sector_t secs;
         bitmap_counter_t *bmc;
         spin_lock_irq(&bitmap->lock);
         bmc = bitmap_get_counter(bitmap, offset, &secs, 1);
@@ -1790,7 +1790,7 @@ int bitmap_load(mddev_t *mddev)
          * All chunks should be clean, but some might need_sync.
          */
         while (sector < mddev->resync_max_sectors) {
-                int blocks;
+                sector_t blocks;
                 bitmap_start_sync(bitmap, sector, &blocks, 0);
                 sector += blocks;
         }
diff --git a/drivers/md/bitmap.h b/drivers/md/bitmap.h
index e872a7bad6b8..931a7a7c3796 100644
--- a/drivers/md/bitmap.h
+++ b/drivers/md/bitmap.h
@@ -271,8 +271,8 @@ int bitmap_startwrite(struct bitmap *bitmap, sector_t offset,
                         unsigned long sectors, int behind);
 void bitmap_endwrite(struct bitmap *bitmap, sector_t offset,
                         unsigned long sectors, int success, int behind);
-int bitmap_start_sync(struct bitmap *bitmap, sector_t offset, int *blocks, int degraded);
-void bitmap_end_sync(struct bitmap *bitmap, sector_t offset, int *blocks, int aborted);
+int bitmap_start_sync(struct bitmap *bitmap, sector_t offset, sector_t *blocks, int degraded);
+void bitmap_end_sync(struct bitmap *bitmap, sector_t offset, sector_t *blocks, int aborted);
 void bitmap_close_sync(struct bitmap *bitmap);
 void bitmap_cond_end_sync(struct bitmap *bitmap, sector_t sector);
 
diff --git a/drivers/md/raid1.c b/drivers/md/raid1.c
index 378a25894c57..a4b85a947532 100644
--- a/drivers/md/raid1.c
+++ b/drivers/md/raid1.c
@@ -1245,7 +1245,7 @@ static void end_sync_write(struct bio *bio, int error)
                         break;
                 }
         if (!uptodate) {
-                int sync_blocks = 0;
+                sector_t sync_blocks = 0;
                 sector_t s = r1_bio->sector;
                 long sectors_to_go = r1_bio->sectors;
                 /* make sure these bits doesn't get cleared. */
@@ -1705,7 +1705,7 @@ static sector_t sync_request(mddev_t *mddev, sector_t sector_nr, int *skipped, i
         int i;
         int wonly = -1;
         int write_targets = 0, read_targets = 0;
-        int sync_blocks;
+        sector_t sync_blocks;
         int still_degraded = 0;
 
         if (!conf->r1buf_pool)
diff --git a/drivers/md/raid10.c b/drivers/md/raid10.c
index f0d082f749be..387fe4b4fab7 100644
--- a/drivers/md/raid10.c
+++ b/drivers/md/raid10.c
@@ -1820,7 +1820,7 @@ static sector_t sync_request(mddev_t *mddev, sector_t sector_nr, int *skipped, i
         int disk;
         int i;
         int max_sync;
-        int sync_blocks;
+        sector_t sync_blocks;
 
         sector_t sectors_skipped = 0;
         int chunks_skipped = 0;
diff --git a/drivers/md/raid5.c b/drivers/md/raid5.c
index 31140d1259dc..8abc159b377a 100644
--- a/drivers/md/raid5.c
+++ b/drivers/md/raid5.c
@@ -4360,7 +4360,7 @@ static inline sector_t sync_request(mddev_t *mddev, sector_t sector_nr, int *ski
         raid5_conf_t *conf = mddev->private;
         struct stripe_head *sh;
         sector_t max_sector = mddev->dev_sectors;
-        int sync_blocks;
+        sector_t sync_blocks;
         int still_degraded = 0;
         int i;