diff options
| author | Vlastimil Babka <vbabka@suse.cz> | 2023-02-28 11:07:44 +0100 |
|---|---|---|
| committer | Vlastimil Babka <vbabka@suse.cz> | 2023-03-29 10:32:11 +0200 |
| commit | d88e2a2bd20562048a263ca6a0f939c2695ffb2e (patch) | |
| tree | 4fa1a6a0087c6ac53ca6f5c22f50d9476a9b3338 /fs/proc/page.c | |
| parent | c4ba69f00c18524eb89990e9afda9d2a9b54de2f (diff) | |
mm, pagemap: remove SLOB and SLQB from comments and documentation
SLOB has been removed and SLQB never merged, so remove their mentions
from comments and documentation of pagemap.
In stable_page_flags() also correct an outdated comment mentioning that
PageBuddy() means a page->_refcount of -1, and remove compound_head()
from the PageSlab() call, as that's already implicitly there thanks to
PF_NO_TAIL.
Signed-off-by: Vlastimil Babka <vbabka@suse.cz>
Acked-by: Lorenzo Stoakes <lstoakes@gmail.com>
Acked-by: Mike Rapoport (IBM) <rppt@kernel.org>
Diffstat (limited to 'fs/proc/page.c')
| -rw-r--r-- | fs/proc/page.c | 9 |
1 files changed, 4 insertions, 5 deletions
diff --git a/fs/proc/page.c b/fs/proc/page.c index 6249c347809a..195b077c0fac 100644 --- a/fs/proc/page.c +++ b/fs/proc/page.c @@ -125,7 +125,7 @@ u64 stable_page_flags(struct page *page) /* * pseudo flags for the well known (anonymous) memory mapped pages * - * Note that page->_mapcount is overloaded in SLOB/SLUB/SLQB, so the + * Note that page->_mapcount is overloaded in SLAB, so the * simple test in page_mapped() is not enough. */ if (!PageSlab(page) && page_mapped(page)) @@ -165,9 +165,8 @@ u64 stable_page_flags(struct page *page) /* - * Caveats on high order pages: page->_refcount will only be set - * -1 on the head page; SLUB/SLQB do the same for PG_slab; - * SLOB won't set PG_slab at all on compound pages. + * Caveats on high order pages: PG_buddy and PG_slab will only be set + * on the head page. */ if (PageBuddy(page)) u |= 1 << KPF_BUDDY; @@ -185,7 +184,7 @@ u64 stable_page_flags(struct page *page) u |= kpf_copy_bit(k, KPF_LOCKED, PG_locked); u |= kpf_copy_bit(k, KPF_SLAB, PG_slab); - if (PageTail(page) && PageSlab(compound_head(page))) + if (PageTail(page) && PageSlab(page)) u |= 1 << KPF_SLAB; u |= kpf_copy_bit(k, KPF_ERROR, PG_error); |