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>
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@ -441,9 +441,8 @@ static int sclp_mem_notifier(struct notifier_block *nb,
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start = arg->start_pfn << PAGE_SHIFT;
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start = arg->start_pfn << PAGE_SHIFT;
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size = arg->nr_pages << PAGE_SHIFT;
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size = arg->nr_pages << PAGE_SHIFT;
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mutex_lock(&sclp_mem_mutex);
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mutex_lock(&sclp_mem_mutex);
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for (id = 0; id <= sclp_max_storage_id; id++)
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for_each_clear_bit(id, sclp_storage_ids, sclp_max_storage_id + 1)
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if (!test_bit(id, sclp_storage_ids))
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sclp_attach_storage(id);
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sclp_attach_storage(id);
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switch (action) {
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switch (action) {
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case MEM_ONLINE:
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case MEM_ONLINE:
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case MEM_GOING_OFFLINE:
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case MEM_GOING_OFFLINE:
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