4c1171f1d2
The folio_test_anon(folio)==false cases has been relocated to
folio_add_new_anon_rmap(). Additionally, four other callers consistently
pass anonymous folios.
stack 1:
remove_migration_pmd
-> folio_add_anon_rmap_pmd
-> __folio_add_anon_rmap
stack 2:
__split_huge_pmd_locked
-> folio_add_anon_rmap_ptes
-> __folio_add_anon_rmap
stack 3:
remove_migration_pmd
-> folio_add_anon_rmap_pmd
-> __folio_add_anon_rmap (RMAP_LEVEL_PMD)
stack 4:
try_to_merge_one_page
-> replace_page
-> folio_add_anon_rmap_pte
-> __folio_add_anon_rmap
__folio_add_anon_rmap() only needs to handle the cases
folio_test_anon(folio)==true now.
We can remove the !folio_test_anon(folio)) path within
__folio_add_anon_rmap() now.
Link: https://lkml.kernel.org/r/20240617231137.80726-4-21cnbao@gmail.com
Signed-off-by: Barry Song <v-songbaohua@oppo.com>
Suggested-by: David Hildenbrand <david@redhat.com>
Tested-by: Shuai Yuan <yuanshuai@oppo.com>
Acked-by: David Hildenbrand <david@redhat.com>
Cc: Baolin Wang <baolin.wang@linux.alibaba.com>
Cc: Chris Li <chrisl@kernel.org>
Cc: "Huang, Ying" <ying.huang@intel.com>
Cc: Matthew Wilcox (Oracle) <willy@infradead.org>
Cc: Michal Hocko <mhocko@suse.com>
Cc: Ryan Roberts <ryan.roberts@arm.com>
Cc: Suren Baghdasaryan <surenb@google.com>
Cc: Yang Shi <shy828301@gmail.com>
Cc: Yosry Ahmed <yosryahmed@google.com>
Cc: Yu Zhao <yuzhao@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Linux kernel
============
There are several guides for kernel developers and users. These guides can
be rendered in a number of formats, like HTML and PDF. Please read
Documentation/admin-guide/README.rst first.
In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``. The formatted documentation can also be read online at:
https://www.kernel.org/doc/html/latest/
There are various text files in the Documentation/ subdirectory,
several of them using the reStructuredText markup notation.
Please read the Documentation/process/changes.rst file, as it contains the
requirements for building and running the kernel, and information about
the problems which may result by upgrading your kernel.