Commit 3dc79460 authored by Johannes Weiner's avatar Johannes Weiner Committed by Suren Baghdasaryan
Browse files

BACKPORT: mm: page_alloc: consolidate free page accounting

Free page accounting currently happens a bit too high up the call stack,
where it has to deal with guard pages, compaction capturing, block
stealing and even page isolation.  This is subtle and fragile, and makes
it difficult to hack on the code.

Now that type violations on the freelists have been fixed, push the
accounting down to where pages enter and leave the freelist.

[hannes@cmpxchg.org: undo unrelated drive-by line wrap]
Link: https://lkml.kernel.org/r/20240327185736.GA7597@cmpxchg.org
[hannes@cmpxchg.org: remove unused page parameter from account_freepages()]
Link: https://lkml.kernel.org/r/20240327185831.GB7597@cmpxchg.org
[baolin.wang@linux.alibaba.com: fix free page accounting]
Link: https://lkml.kernel.org/r/a2a48baca69f103aa431fd201f8a06e3b95e203d.1712648441.git.baolin.wang@linux.alibaba.com
[andriy.shevchenko@linux.intel.com: avoid defining unused function]
Link: https://lkml.kernel.org/r/20240423161506.2637177-1-andriy.shevchenko@linux.intel.com
Link: https://lkml.kernel.org/r/20240320180429.678181-11-hannes@cmpxchg.org


Signed-off-by: default avatarJohannes Weiner <hannes@cmpxchg.org>
Signed-off-by: default avatarAndy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: default avatarBaolin Wang <baolin.wang@linux.alibaba.com>
Reviewed-by: default avatarVlastimil Babka <vbabka@suse.cz>
Tested-by: default avatarBaolin Wang <baolin.wang@linux.alibaba.com>
Cc: David Hildenbrand <david@redhat.com>
Cc: "Huang, Ying" <ying.huang@intel.com>
Cc: Mel Gorman <mgorman@techsingularity.net>
Cc: Zi Yan <ziy@nvidia.com>
Signed-off-by: default avatarAndrew Morton <akpm@linux-foundation.org>

Bug: 406708503
(cherry picked from commit e0932b6c)
[Replace add_to_free_list(&page[size], zone, high, migratetype, false) in the patch with __add_to_free_list(&page[size], zone, high, migratetype, false) to resolve the compilation failure issue.]
Change-Id: I18f4962e7432a411c02a027d0179bb7009249928
Signed-off-by: default avataryipeng xiang <yipengxiang@honor.corp-partner.google.com>
parent f15ddfd3
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