The patch titled
Subject: mm/page_owner.c: remove drain_all_pages from init_early_allocated_pages
has been removed from the -mm tree. Its filename was
mm-page_owner-remove-drain_all_pages-from-init_early_allocated_pages.patch
This patch was dropped because it was merged into mainline or a subsystem tree
------------------------------------------------------
From: Oscar Salvador <osalvador@xxxxxxxxxxxxxxxxxx>
Subject: mm/page_owner.c: remove drain_all_pages from init_early_allocated_pages
When setting page_owner = on, the following warning can be seen in the
boot log:
WARNING: CPU: 0 PID: 0 at mm/page_alloc.c:2537 drain_all_pages+0x171/0x1a0
Modules linked in:
CPU: 0 PID: 0 Comm: swapper/0 Not tainted 4.15.0-rc7-next-20180109-1-default+ #7
Hardware name: Dell Inc. Latitude E7470/0T6HHJ, BIOS 1.11.3 11/09/2016
RIP: 0010:drain_all_pages+0x171/0x1a0
RSP: 0000:ffffffff82003ea8 EFLAGS: 00010246
RAX: 000000000000000f RBX: ffffffffffffffff RCX: ffffffff8205b388
RDX: 0000000000000001 RSI: 0000000000000096 RDI: 0000000000000202
RBP: 0000000000000000 R08: 0000000000000000 R09: 00000000000000af
R10: 0000000000000004 R11: 00000000000000ae R12: ffff88024dfdcec0
R13: ffffffff82530740 R14: 0000000000000000 R15: 00000000a8831448
FS: 0000000000000000(0000) GS:ffff88024dc00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: ffff88024dfff000 CR3: 000000000200a001 CR4: 00000000000606b0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
init_page_owner+0x4e/0x260
start_kernel+0x3e6/0x4a6
? set_init_arg+0x55/0x55
secondary_startup_64+0xa5/0xb0
Code: c5 ed ff 89 df 48 c7 c6 20 3b 71 82 e8 f9 4b 52 00 3b 05 d7 0b f8 00 89 c3 72 d5 5b 5d 41 5
---[ end trace 45da7f0cb4aef07b ]---
This warning is shown because we are calling drain_all_pages() in
init_early_allocated_pages(), but mm_percpu_wq is not up yet, it is being
set up later on in kernel_init_freeable() -> init_mm_internals().
Link: http://lkml.kernel.org/r/20180109153921.GA13070@xxxxxxxxxxxxxxxxxx
Signed-off-by: Oscar Salvador <osalvador@xxxxxxxxxxxxxxxxxx>
Acked-by: Joonsoo Kim <iamjoonsoo.kim@xxxxxxx>
Cc: Vlastimil Babka <vbabka@xxxxxxx>
Cc: Michal Hocko <mhocko@xxxxxxxx>
Cc: Ayush Mittal <ayush.m@xxxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
mm/page_owner.c | 1 -
1 file changed, 1 deletion(-)
diff -puN mm/page_owner.c~mm-page_owner-remove-drain_all_pages-from-init_early_allocated_pages mm/page_owner.c
--- a/mm/page_owner.c~mm-page_owner-remove-drain_all_pages-from-init_early_allocated_pages
+++ a/mm/page_owner.c
@@ -616,7 +616,6 @@ static void init_early_allocated_pages(v
{
pg_data_t *pgdat;
- drain_all_pages(NULL);
for_each_online_pgdat(pgdat)
init_zones_in_node(pgdat);
}
_
Patches currently in -mm which might be from osalvador@xxxxxxxxxxxxxxxxxx are
mm-slab-remove-redundant-assignments-for-slab_state.patch
mm-memory_hotplug-remove-unnecesary-check-from-register_page_bootmem_info_section.patch
mm-memory_hotplug-remove-second-__nr_to_section-in-register_page_bootmem_info_section.patch
mm-page_owner-clean-up-init_pages_in_zone.patch
mm-page_owner-clean-up-init_pages_in_zone-v3.patch
mm-page_extc-make-page_ext_init-a-noop-when-config_page_extension-but-nothing-uses-it.patch
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