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| author | Arun KS <arunks@codeaurora.org> | 2018-12-28 00:34:29 -0800 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2018-12-28 12:11:47 -0800 |
| commit | ca79b0c211af63fa3276f0e3fd7dd9ada2439839 (patch) | |
| tree | a9198e85582744619903c85349583bb453fe36cb /mm/workingset.c | |
| parent | 9705bea5f833f4fc21d5bef5fce7348427f76ea4 (diff) | |
| download | linux-ca79b0c211af63fa3276f0e3fd7dd9ada2439839.tar.bz2 | |
mm: convert totalram_pages and totalhigh_pages variables to atomic
totalram_pages and totalhigh_pages are made static inline function.
Main motivation was that managed_page_count_lock handling was complicating
things. It was discussed in length here,
https://lore.kernel.org/patchwork/patch/995739/#1181785 So it seemes
better to remove the lock and convert variables to atomic, with preventing
poteintial store-to-read tearing as a bonus.
[akpm@linux-foundation.org: coding style fixes]
Link: http://lkml.kernel.org/r/1542090790-21750-4-git-send-email-arunks@codeaurora.org
Signed-off-by: Arun KS <arunks@codeaurora.org>
Suggested-by: Michal Hocko <mhocko@suse.com>
Suggested-by: Vlastimil Babka <vbabka@suse.cz>
Reviewed-by: Konstantin Khlebnikov <khlebnikov@yandex-team.ru>
Reviewed-by: Pavel Tatashin <pasha.tatashin@soleen.com>
Acked-by: Michal Hocko <mhocko@suse.com>
Acked-by: Vlastimil Babka <vbabka@suse.cz>
Cc: David Hildenbrand <david@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'mm/workingset.c')
| -rw-r--r-- | mm/workingset.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/mm/workingset.c b/mm/workingset.c index d46f8c92aa2f..dcb994f2acc2 100644 --- a/mm/workingset.c +++ b/mm/workingset.c @@ -549,7 +549,7 @@ static int __init workingset_init(void) * double the initial memory by using totalram_pages as-is. */ timestamp_bits = BITS_PER_LONG - EVICTION_SHIFT; - max_order = fls_long(totalram_pages - 1); + max_order = fls_long(totalram_pages() - 1); if (max_order > timestamp_bits) bucket_order = max_order - timestamp_bits; pr_info("workingset: timestamp_bits=%d max_order=%d bucket_order=%u\n", |