]> www.infradead.org Git - users/jedix/linux-maple.git/commit
mm: accept memory in __alloc_pages_bulk()
authorKirill A. Shutemov <kirill.shutemov@linux.intel.com>
Fri, 9 Aug 2024 11:48:49 +0000 (14:48 +0300)
committerAndrew Morton <akpm@linux-foundation.org>
Sat, 17 Aug 2024 00:53:06 +0000 (17:53 -0700)
commitc748bfe8580636181ae5ce09c189636dff1da36f
tree9cbc318604713ae5da982fa7d0d48ba9507a95e5
parentf465cbb2735b2282fbebee175e9d2090d386ad23
mm: accept memory in __alloc_pages_bulk()

Currently, the kernel only accepts memory in get_page_from_freelist(), but
there is another path that directly takes pages from free lists -
__alloc_page_bulk().  This function can consume all accepted memory and
will resort to __alloc_pages_noprof() if necessary.

Conditionally accepted in __alloc_pages_bulk().

The same issue may arise due to deferred page initialization.  Kick the
deferred initialization machinery before abandoning the zone, as the
kernel does in get_page_from_freelist().

Link: https://lkml.kernel.org/r/20240809114854.3745464-4-kirill.shutemov@linux.intel.com
Signed-off-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
Acked-by: David Hildenbrand <david@redhat.com>
Cc: Borislav Petkov <bp@alien8.de>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Cc: Matthew Wilcox <willy@infradead.org>
Cc: Mel Gorman <mgorman@suse.de>
Cc: Mike Rapoport (Microsoft) <rppt@kernel.org>
Cc: Tom Lendacky <thomas.lendacky@amd.com>
Cc: Vlastimil Babka <vbabka@suse.cz>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
mm/page_alloc.c