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drivers: virtio_mem: use pageblock size as the minimum virtio_mem size.

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alloc_contig_range() now only needs to be aligned to pageblock_nr_pages,
drop virtio_mem size requirement that it needs to be MAX_ORDER_NR_PAGES.

Link: https://lkml.kernel.org/r/20220425143118.2850746-7-zi.yan@sent.com
Signed-off-by: Zi Yan <ziy@nvidia.com>
Cc: Christophe Leroy <christophe.leroy@csgroup.eu>
Cc: David Hildenbrand <david@redhat.com>
Cc: Eric Ren <renzhengeek@gmail.com>
Cc: kernel test robot <lkp@intel.com>
Cc: Mel Gorman <mgorman@techsingularity.net>
Cc: Mike Rapoport <rppt@linux.ibm.com>
Cc: Minchan Kim <minchan@kernel.org>
Cc: Oscar Salvador <osalvador@suse.de>
Cc: Vlastimil Babka <vbabka@suse.cz>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
This commit is contained in:
Zi Yan 2022-05-12 20:22:58 -07:00 committed by Andrew Morton
parent 11ac3e87ce
commit 448b8ec3bf
1 changed files with 3 additions and 3 deletions
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6
drivers/virtio/virtio_mem.c
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@ -2476,10 +2476,10 @@ static int virtio_mem_init_hotplug(struct virtio_mem *vm)
VIRTIO_MEM_DEFAULT_OFFLINE_THRESHOLD);
/*
* TODO: once alloc_contig_range() works reliably with pageblock
* granularity on ZONE_NORMAL, use pageblock_nr_pages instead.
* alloc_contig_range() works reliably with pageblock
* granularity on ZONE_NORMAL, use pageblock_nr_pages.
*/
sb_size = PAGE_SIZE * MAX_ORDER_NR_PAGES;
sb_size = PAGE_SIZE * pageblock_nr_pages;
sb_size = max_t(uint64_t, vm->device_block_size, sb_size);
if (sb_size < memory_block_size_bytes() && !force_bbm) {