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authorDavid Howells <dhowells@redhat.com>2011-06-15 00:59:04 +0100
committerPhilipp Reisner <philipp.reisner@linbit.com>2012-05-09 10:03:19 +0200
commit5f138ce01ae6430db2e2cebd0a945dff75581d62 (patch)
tree4790fc682c7366b4f3fb72f28af2238052ee9309
parent7948bcdc38b9af9ef3e72199cdea1d775a9537fc (diff)
DRBD: Fix comparison always false warning due to long/long long compare
Fix warnings of the following nature in the drbd header: In file included from drivers/block/drbd/drbd_bitmap.c:32: drivers/block/drbd/drbd_int.h: In function 'drbd_get_syncer_progress': drivers/block/drbd/drbd_int.h:2234: warning: comparison is always false due to limited range of data where mdev->rs_total (an unsigned long) is being compared to 1ULL << 32, which is always false on a 32-bit machine. Signed-off-by: David Howells <dhowells@redhat.com> Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com> Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com>
-rw-r--r--drivers/block/drbd/drbd_int.h2
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/block/drbd/drbd_int.h b/drivers/block/drbd/drbd_int.h
index 8d680562ba73..2be057b8f568 100644
--- a/drivers/block/drbd/drbd_int.h
+++ b/drivers/block/drbd/drbd_int.h
@@ -2230,7 +2230,7 @@ static inline void drbd_get_syncer_progress(struct drbd_conf *mdev,
* Note: currently we don't support such large bitmaps on 32bit
* arch anyways, but no harm done to be prepared for it here.
*/
- unsigned int shift = mdev->rs_total >= (1ULL << 32) ? 16 : 10;
+ unsigned int shift = mdev->rs_total > UINT_MAX ? 16 : 10;
unsigned long left = *bits_left >> shift;
unsigned long total = 1UL + (mdev->rs_total >> shift);
unsigned long tmp = 1000UL - left * 1000UL/total;