lkml.org 
[lkml]   [2022]   [Sep]   [26]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
    Patch in this message
    /
    From
    Subject[PATCH] Documentation/mm: modify page_referenced to folio_referenced
    Date
    Since commit b3ac04132c4b ("mm/rmap: Turn page_referenced() into
    folio_referenced()") the page_referenced function name was modified,
    so fix it up to use the correct one.

    Signed-off-by: Vernon Yang <vernon2gm@gmail.com>
    ---
    Documentation/mm/unevictable-lru.rst | 6 +++---
    1 file changed, 3 insertions(+), 3 deletions(-)

    diff --git a/Documentation/mm/unevictable-lru.rst b/Documentation/mm/unevictable-lru.rst
    index b280367d6a44..4a0e158aa9ce 100644
    --- a/Documentation/mm/unevictable-lru.rst
    +++ b/Documentation/mm/unevictable-lru.rst
    @@ -197,7 +197,7 @@ unevictable list for the memory cgroup and node being scanned.
    There may be situations where a page is mapped into a VM_LOCKED VMA, but the
    page is not marked as PG_mlocked. Such pages will make it all the way to
    shrink_active_list() or shrink_page_list() where they will be detected when
    -vmscan walks the reverse map in page_referenced() or try_to_unmap(). The page
    +vmscan walks the reverse map in folio_referenced() or try_to_unmap(). The page
    is culled to the unevictable list when it is released by the shrinker.

    To "cull" an unevictable page, vmscan simply puts the page back on the LRU list
    @@ -267,7 +267,7 @@ the LRU. Such pages can be "noticed" by memory management in several places:
    (4) in the fault path and when a VM_LOCKED stack segment is expanded; or

    (5) as mentioned above, in vmscan:shrink_page_list() when attempting to
    - reclaim a page in a VM_LOCKED VMA by page_referenced() or try_to_unmap().
    + reclaim a page in a VM_LOCKED VMA by folio_referenced() or try_to_unmap().

    mlocked pages become unlocked and rescued from the unevictable list when:

    @@ -547,7 +547,7 @@ vmscan's shrink_inactive_list() and shrink_page_list() also divert obviously
    unevictable pages found on the inactive lists to the appropriate memory cgroup
    and node unevictable list.

    -rmap's page_referenced_one(), called via vmscan's shrink_active_list() or
    +rmap's folio_referenced_one(), called via vmscan's shrink_active_list() or
    shrink_page_list(), and rmap's try_to_unmap_one() called via shrink_page_list(),
    check for (3) pages still mapped into VM_LOCKED VMAs, and call mlock_vma_page()
    to correct them. Such pages are culled to the unevictable list when released
    --
    2.25.1
    \
     
     \ /
      Last update: 2022-09-26 18:33    [W:8.953 / U:0.180 seconds]
    ©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site