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authorAkinobu Mita <akinobu.mita@gmail.com>2012-03-23 15:02:05 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2012-03-23 16:58:34 -0700
commitfc89db4b789fc9edf88440f6896f04a879ed3b46 (patch)
tree6cbf9935fce98069a65b793d2726e518ff340d57 /drivers/s390
parentc527b414ca3daf0b0c616992d3b580486926a8e9 (diff)
downloadop-kernel-dev-fc89db4b789fc9edf88440f6896f04a879ed3b46.zip
op-kernel-dev-fc89db4b789fc9edf88440f6896f04a879ed3b46.tar.gz
s390/char: use for_each_clear_bit()
Use for_each_clear_bit() to iterate over all the cleared bit in a memory region. Signed-off-by: Akinobu Mita <akinobu.mita@gmail.com> Cc: Martin Schwidefsky <schwidefsky@de.ibm.com> Cc: Heiko Carstens <heiko.carstens@de.ibm.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'drivers/s390')
-rw-r--r--drivers/s390/char/sclp_cmd.c5
1 files changed, 2 insertions, 3 deletions
diff --git a/drivers/s390/char/sclp_cmd.c b/drivers/s390/char/sclp_cmd.c
index 0b54a91..168525a 100644
--- a/drivers/s390/char/sclp_cmd.c
+++ b/drivers/s390/char/sclp_cmd.c
@@ -441,9 +441,8 @@ static int sclp_mem_notifier(struct notifier_block *nb,
start = arg->start_pfn << PAGE_SHIFT;
size = arg->nr_pages << PAGE_SHIFT;
mutex_lock(&sclp_mem_mutex);
- for (id = 0; id <= sclp_max_storage_id; id++)
- if (!test_bit(id, sclp_storage_ids))
- sclp_attach_storage(id);
+ for_each_clear_bit(id, sclp_storage_ids, sclp_max_storage_id + 1)
+ sclp_attach_storage(id);
switch (action) {
case MEM_ONLINE:
case MEM_GOING_OFFLINE:
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