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| author | Akinobu Mita <akinobu.mita@gmail.com> | 2012-03-23 15:02:05 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2012-03-23 16:58:34 -0700 |
| commit | fc89db4b789fc9edf88440f6896f04a879ed3b46 (patch) | |
| tree | 6cbf9935fce98069a65b793d2726e518ff340d57 /drivers | |
| parent | c527b414ca3daf0b0c616992d3b580486926a8e9 (diff) | |
| download | lwn-fc89db4b789fc9edf88440f6896f04a879ed3b46.tar.gz lwn-fc89db4b789fc9edf88440f6896f04a879ed3b46.zip | |
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')
| -rw-r--r-- | drivers/s390/char/sclp_cmd.c | 5 |
1 files changed, 2 insertions, 3 deletions
diff --git a/drivers/s390/char/sclp_cmd.c b/drivers/s390/char/sclp_cmd.c index 0b54a91f8dcd..168525a9c292 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: |