The patch titled
Subject: mm, page_owner: provide symbolic page flags and gfp_flags
has been removed from the -mm tree. Its filename was
mm-page_owner-provide-symbolic-page-flags-and-gfp_flags.patch
This patch was dropped because an updated version will be merged
------------------------------------------------------
From: Vlastimil Babka <vbabka@xxxxxxx>
Subject: mm, page_owner: provide symbolic page flags and gfp_flags
With the new format strings for flags, we can now provide symbolic page
and gfp flags in the /sys/kernel/debug/page_owner file. This replaces the
positional printing of page flags as single letters, which might have
looked nicer, but was limited to a subset of flags, and required the user
to remember the letters.
Example of the adjusted format:
Page allocated via order 0, mask 0x24213ca(GFP_HIGHUSER_MOVABLE|GFP_COLD|GFP_NOWARN|GFP_NORETRY)
PFN 674308 type Movable Block 1317 type Movable Flags 0x1fffff80010068(uptodate|lru|active|mappedtodisk)
[<ffffffff81164e9a>] __alloc_pages_nodemask+0x15a/0xa30
[<ffffffff811ab938>] alloc_pages_current+0x88/0x120
[<ffffffff8115bc46>] __page_cache_alloc+0xe6/0x120
[<ffffffff81168b9b>] __do_page_cache_readahead+0xdb/0x200
[<ffffffff81168df5>] ondemand_readahead+0x135/0x260
[<ffffffff81168f8c>] page_cache_async_readahead+0x6c/0x70
[<ffffffff8115d5f8>] generic_file_read_iter+0x378/0x590
[<ffffffff811d12a7>] __vfs_read+0xa7/0xd0
Page has been migrated, last migrate reason: compaction
Signed-off-by: Vlastimil Babka <vbabka@xxxxxxx>
Cc: Rasmus Villemoes <linux@xxxxxxxxxxxxxxxxxx>
Cc: Joonsoo Kim <iamjoonsoo.kim@xxxxxxx>
Cc: Minchan Kim <minchan@xxxxxxxxxx>
Cc: Sasha Levin <sasha.levin@xxxxxxxxxx>
Cc: "Kirill A. Shutemov" <kirill.shutemov@xxxxxxxxxxxxxxx>
Cc: Mel Gorman <mgorman@xxxxxxx>
Cc: Michal Hocko <mhocko@xxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
mm/page_owner.c | 5 +++--
1 file changed, 3 insertions(+), 2 deletions(-)
diff -puN mm/page_owner.c~mm-page_owner-provide-symbolic-page-flags-and-gfp_flags mm/page_owner.c
--- a/mm/page_owner.c~mm-page_owner-provide-symbolic-page-flags-and-gfp_flags
+++ a/mm/page_owner.c
@@ -100,8 +100,9 @@ print_page_owner(char __user *buf, size_
return -ENOMEM;
ret = snprintf(kbuf, count,
- "Page allocated via order %u, mask 0x%x\n",
- page_ext->order, page_ext->gfp_mask);
+ "Page allocated via order %u, mask %#x(%pgg)\n",
+ page_ext->order, page_ext->gfp_mask,
+ &page_ext->gfp_mask);
if (ret >= count)
goto err;
_
Patches currently in -mm which might be from vbabka@xxxxxxx are
mm-documentation-clarify-proc-pid-status-vmswap-limitations-for-shmem.patch
mm-proc-account-for-shmem-swap-in-proc-pid-smaps.patch
mm-proc-reduce-cost-of-proc-pid-smaps-for-shmem-mappings.patch
mm-proc-reduce-cost-of-proc-pid-smaps-for-unpopulated-shmem-mappings.patch
mm-debug-move-bad-flags-printing-to-bad_page.patch
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