]> www.infradead.org Git - users/jedix/linux-maple.git/commit
mm/page_owner.c: add llseek for page_owner
authorKassey Li <quic_yingangl@quicinc.com>
Thu, 18 Aug 2022 02:24:25 +0000 (10:24 +0800)
committerAndrew Morton <akpm@linux-foundation.org>
Mon, 22 Aug 2022 22:58:18 +0000 (15:58 -0700)
commit83957d0cf38fd28b9eac5565f6260c2462796048
treea6594f9a37b24835ed7830b5a2eb8b0414246b4e
parent3986d660ee935423f59fcab2d688dfc3cfdf99f5
mm/page_owner.c: add llseek for page_owner

It is too slow to dump all the pages, in some usage we just want to dump a
given start pfn, for example: a CMA range or a single page.

To speed up and save time, this change allows specifying of a start pfn by
adding llseek for page_owner.

Link: https://lkml.kernel.org/r/20220818022425.31056-1-quic_yingangl@quicinc.com
Signed-off-by: Kassey Li <quic_yingangl@quicinc.com>
Suggested-by: Vlastimil Babka <vbabka@suse.cz>
Acked-by: Vlastimil Babka <vbabka@suse.cz>
Cc: Joonsoo Kim <iamjoonsoo.kim@lge.com>
Cc: Minchan Kim <minchan@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Documentation/mm/page_owner.rst
mm/page_owner.c