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From: Andrew Morton <akpm@linux-foundation.org>
To: akpm@linux-foundation.org, corbet@lwn.net, jglisse@redhat.com,
	jhubbard@nvidia.com, linux-mm@kvack.org,
	mm-commits@vger.kernel.org, rcampbell@nvidia.com,
	shuah@kernel.org, torvalds@linux-foundation.org
Subject: [patch 037/200] selftests/vm: gup_test: introduce the dump_pages() sub-test
Date: Mon, 14 Dec 2020 19:05:21 -0800	[thread overview]
Message-ID: <20201215030521.AeqTzgvU1%akpm@linux-foundation.org> (raw)
In-Reply-To: <20201214190237.a17b70ae14f129e2dca3d204@linux-foundation.org>

From: John Hubbard <jhubbard@nvidia.com>
Subject: selftests/vm: gup_test: introduce the dump_pages() sub-test

For quite a while, I was doing a quick hack to gup_test.c (previously,
gup_benchmark.c) whenever I wanted to try out my changes to dump_page().
This makes that hack unnecessary, and instead allows anyone to easily get
the same coverage from a user space program.  That saves a lot of time
because you don't have to change the kernel, in order to test different
pages and options.

The new sub-test takes advantage of the existing gup_test infrastructure,
which already provides a simple user space program, some allocated user
space pages, an ioctl call, pinning of those pages (via either
get_user_pages or pin_user_pages) and a corresponding kernel-side test
invocation.  There's not much more required, mainly just a couple of
inputs from the user.

In fact, the new test re-uses the existing command line options in order
to get various helpful combinations (THP or normal, _fast or slow gup, gup
vs.  pup, and more).

New command line options are: which pages to dump, and what type of
"get/pin" to use.

In order to figure out which pages to dump, the logic is:

* If the user doesn't specify anything, the page 0 (the first page in
  the address range that the program sets up for testing) is dumped.

* Or, the user can type up to 8 page indices anywhere on the command
  line.  If you type more than 8, then it uses the first 8 and ignores the
  remaining items.

For example:

    ./gup_test -ct -F 1 0 19 0x1000

Meaning:
    -c:          dump pages sub-test
    -t:          use THP pages
    -F 1:        use pin_user_pages() instead of get_user_pages()
    0 19 0x1000: dump pages 0, 19, and 4096

Link: https://lkml.kernel.org/r/20201026064021.3545418-7-jhubbard@nvidia.com
Signed-off-by: John Hubbard <jhubbard@nvidia.com>
Cc: Jérôme Glisse <jglisse@redhat.com>
Cc: Jonathan Corbet <corbet@lwn.net>
Cc: Ralph Campbell <rcampbell@nvidia.com>
Cc: Shuah Khan <shuah@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
---

 mm/Kconfig                            |    6 ++
 mm/gup_test.c                         |   56 +++++++++++++++++++++++-
 mm/gup_test.h                         |   10 ++++
 tools/testing/selftests/vm/gup_test.c |   45 ++++++++++++++++++-
 4 files changed, 113 insertions(+), 4 deletions(-)

--- a/mm/gup_test.c~selftests-vm-gup_test-introduce-the-dump_pages-sub-test
+++ a/mm/gup_test.c
@@ -7,7 +7,7 @@
 #include "gup_test.h"
 
 static void put_back_pages(unsigned int cmd, struct page **pages,
-			   unsigned long nr_pages)
+			   unsigned long nr_pages, unsigned int gup_test_flags)
 {
 	unsigned long i;
 
@@ -23,6 +23,15 @@ static void put_back_pages(unsigned int
 	case PIN_LONGTERM_BENCHMARK:
 		unpin_user_pages(pages, nr_pages);
 		break;
+	case DUMP_USER_PAGES_TEST:
+		if (gup_test_flags & GUP_TEST_FLAG_DUMP_PAGES_USE_PIN) {
+			unpin_user_pages(pages, nr_pages);
+		} else {
+			for (i = 0; i < nr_pages; i++)
+				put_page(pages[i]);
+
+		}
+		break;
 	}
 }
 
@@ -49,6 +58,37 @@ static void verify_dma_pinned(unsigned i
 	}
 }
 
+static void dump_pages_test(struct gup_test *gup, struct page **pages,
+			    unsigned long nr_pages)
+{
+	unsigned int index_to_dump;
+	unsigned int i;
+
+	/*
+	 * Zero out any user-supplied page index that is out of range. Remember:
+	 * .which_pages[] contains a 1-based set of page indices.
+	 */
+	for (i = 0; i < GUP_TEST_MAX_PAGES_TO_DUMP; i++) {
+		if (gup->which_pages[i] > nr_pages) {
+			pr_warn("ZEROING due to out of range: .which_pages[%u]: %u\n",
+				i, gup->which_pages[i]);
+			gup->which_pages[i] = 0;
+		}
+	}
+
+	for (i = 0; i < GUP_TEST_MAX_PAGES_TO_DUMP; i++) {
+		index_to_dump = gup->which_pages[i];
+
+		if (index_to_dump) {
+			index_to_dump--; // Decode from 1-based, to 0-based
+			pr_info("---- page #%u, starting from user virt addr: 0x%llx\n",
+				index_to_dump, gup->addr);
+			dump_page(pages[index_to_dump],
+				  "gup_test: dump_pages() test");
+		}
+	}
+}
+
 static int __gup_test_ioctl(unsigned int cmd,
 		struct gup_test *gup)
 {
@@ -111,6 +151,14 @@ static int __gup_test_ioctl(unsigned int
 					    gup->flags | FOLL_LONGTERM,
 					    pages + i, NULL);
 			break;
+		case DUMP_USER_PAGES_TEST:
+			if (gup->flags & GUP_TEST_FLAG_DUMP_PAGES_USE_PIN)
+				nr = pin_user_pages(addr, nr, gup->flags,
+						    pages + i, NULL);
+			else
+				nr = get_user_pages(addr, nr, gup->flags,
+						    pages + i, NULL);
+			break;
 		default:
 			ret = -EINVAL;
 			goto unlock;
@@ -134,9 +182,12 @@ static int __gup_test_ioctl(unsigned int
 	 */
 	verify_dma_pinned(cmd, pages, nr_pages);
 
+	if (cmd == DUMP_USER_PAGES_TEST)
+		dump_pages_test(gup, pages, nr_pages);
+
 	start_time = ktime_get();
 
-	put_back_pages(cmd, pages, nr_pages);
+	put_back_pages(cmd, pages, nr_pages, gup->flags);
 
 	end_time = ktime_get();
 	gup->put_delta_usec = ktime_us_delta(end_time, start_time);
@@ -161,6 +212,7 @@ static long gup_test_ioctl(struct file *
 	case PIN_LONGTERM_BENCHMARK:
 	case GUP_BASIC_TEST:
 	case PIN_BASIC_TEST:
+	case DUMP_USER_PAGES_TEST:
 		break;
 	default:
 		return -EINVAL;
--- a/mm/gup_test.h~selftests-vm-gup_test-introduce-the-dump_pages-sub-test
+++ a/mm/gup_test.h
@@ -9,6 +9,11 @@
 #define PIN_LONGTERM_BENCHMARK	_IOWR('g', 3, struct gup_test)
 #define GUP_BASIC_TEST		_IOWR('g', 4, struct gup_test)
 #define PIN_BASIC_TEST		_IOWR('g', 5, struct gup_test)
+#define DUMP_USER_PAGES_TEST	_IOWR('g', 6, struct gup_test)
+
+#define GUP_TEST_MAX_PAGES_TO_DUMP		8
+
+#define GUP_TEST_FLAG_DUMP_PAGES_USE_PIN	0x1
 
 struct gup_test {
 	__u64 get_delta_usec;
@@ -17,6 +22,11 @@ struct gup_test {
 	__u64 size;
 	__u32 nr_pages_per_call;
 	__u32 flags;
+	/*
+	 * Each non-zero entry is the number of the page (1-based: first page is
+	 * page 1, so that zero entries mean "do nothing") from the .addr base.
+	 */
+	__u32 which_pages[GUP_TEST_MAX_PAGES_TO_DUMP];
 };
 
 #endif	/* __GUP_TEST_H */
--- a/mm/Kconfig~selftests-vm-gup_test-introduce-the-dump_pages-sub-test
+++ a/mm/Kconfig
@@ -832,6 +832,12 @@ config GUP_TEST
 	  get_user_pages*() and pin_user_pages*(), as well as smoke tests of
 	  the non-_fast variants.
 
+	  There is also a sub-test that allows running dump_page() on any
+	  of up to eight pages (selected by command line args) within the
+	  range of user-space addresses. These pages are either pinned via
+	  pin_user_pages*(), or pinned via get_user_pages*(), as specified
+	  by other command line arguments.
+
 	  See tools/testing/selftests/vm/gup_test.c
 
 config GUP_GET_PTE_LOW_HIGH
--- a/tools/testing/selftests/vm/gup_test.c~selftests-vm-gup_test-introduce-the-dump_pages-sub-test
+++ a/tools/testing/selftests/vm/gup_test.c
@@ -27,13 +27,15 @@ static char *cmd_to_str(unsigned long cm
 		return "GUP_BASIC_TEST";
 	case PIN_BASIC_TEST:
 		return "PIN_BASIC_TEST";
+	case DUMP_USER_PAGES_TEST:
+		return "DUMP_USER_PAGES_TEST";
 	}
 	return "Unknown command";
 }
 
 int main(int argc, char **argv)
 {
-	struct gup_test gup;
+	struct gup_test gup = { 0 };
 	unsigned long size = 128 * MB;
 	int i, fd, filed, opt, nr_pages = 1, thp = -1, repeats = 1, write = 0;
 	unsigned long cmd = GUP_FAST_BENCHMARK;
@@ -41,7 +43,7 @@ int main(int argc, char **argv)
 	char *file = "/dev/zero";
 	char *p;
 
-	while ((opt = getopt(argc, argv, "m:r:n:f:abtTLUuwSH")) != -1) {
+	while ((opt = getopt(argc, argv, "m:r:n:F:f:abctTLUuwSH")) != -1) {
 		switch (opt) {
 		case 'a':
 			cmd = PIN_FAST_BENCHMARK;
@@ -52,6 +54,21 @@ int main(int argc, char **argv)
 		case 'L':
 			cmd = PIN_LONGTERM_BENCHMARK;
 			break;
+		case 'c':
+			cmd = DUMP_USER_PAGES_TEST;
+			/*
+			 * Dump page 0 (index 1). May be overridden later, by
+			 * user's non-option arguments.
+			 *
+			 * .which_pages is zero-based, so that zero can mean "do
+			 * nothing".
+			 */
+			gup.which_pages[0] = 1;
+			break;
+		case 'F':
+			/* strtol, so you can pass flags in hex form */
+			gup.flags = strtol(optarg, 0, 0);
+			break;
 		case 'm':
 			size = atoi(optarg) * MB;
 			break;
@@ -91,6 +108,30 @@ int main(int argc, char **argv)
 		}
 	}
 
+	if (optind < argc) {
+		int extra_arg_count = 0;
+		/*
+		 * For example:
+		 *
+		 *   ./gup_test -c 0 1 0x1001
+		 *
+		 * ...to dump pages 0, 1, and 4097
+		 */
+
+		while ((optind < argc) &&
+		       (extra_arg_count < GUP_TEST_MAX_PAGES_TO_DUMP)) {
+			/*
+			 * Do the 1-based indexing here, so that the user can
+			 * use normal 0-based indexing on the command line.
+			 */
+			long page_index = strtol(argv[optind], 0, 0) + 1;
+
+			gup.which_pages[extra_arg_count] = page_index;
+			extra_arg_count++;
+			optind++;
+		}
+	}
+
 	filed = open(file, O_RDWR|O_CREAT);
 	if (filed < 0) {
 		perror("open");
_


  parent reply	other threads:[~2020-12-15  3:05 UTC|newest]

Thread overview: 215+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-12-15  3:02 incoming Andrew Morton
2020-12-15  3:03 ` [patch 001/200] kthread: add kthread_work tracepoints Andrew Morton
2020-12-15  3:03 ` [patch 002/200] kthread_worker: document CPU hotplug handling Andrew Morton
2020-12-15  3:03 ` [patch 003/200] uapi: move constants from <linux/kernel.h> to <linux/const.h> Andrew Morton
2020-12-15  3:03 ` [patch 004/200] ide/falcon: remove in_interrupt() usage Andrew Morton
2020-12-15  3:03 ` [patch 005/200] ide: remove BUG_ON(in_interrupt() || irqs_disabled()) from ide_unregister() Andrew Morton
2020-12-15  3:03 ` [patch 006/200] fs/ntfs: remove unused varibles Andrew Morton
2020-12-15  3:03 ` [patch 007/200] fs/ntfs: remove unused variable attr_len Andrew Morton
2020-12-15  3:03 ` [patch 008/200] fs/ocfs2/cluster/tcp.c: remove unneeded break Andrew Morton
2020-12-15  3:03 ` [patch 009/200] ocfs2: ratelimit the 'max lookup times reached' notice Andrew Morton
2020-12-15  3:03 ` [patch 010/200] arch/Kconfig: fix spelling mistakes Andrew Morton
2020-12-15  3:03 ` [patch 011/200] mm/slab_common.c: use list_for_each_entry in dump_unreclaimable_slab() Andrew Morton
2020-12-15  3:03 ` [patch 012/200] mm: slab: clarify krealloc()'s behavior with __GFP_ZERO Andrew Morton
2020-12-15 14:30   ` Christian König
2020-12-15 19:08     ` Andy Shevchenko
2020-12-16  7:47       ` Christian König
2020-12-16 11:23         ` Andy Shevchenko
2020-12-15  3:03 ` [patch 013/200] mm: slab: provide krealloc_array() Andrew Morton
2020-12-15  3:03 ` [patch 014/200] ALSA: pcm: use krealloc_array() Andrew Morton
2020-12-15  3:04 ` [patch 015/200] vhost: vringh: " Andrew Morton
2020-12-15  3:04 ` [patch 016/200] pinctrl: " Andrew Morton
2020-12-15  3:04 ` [patch 017/200] edac: ghes: " Andrew Morton
2020-12-15  3:04 ` [patch 018/200] drm: atomic: " Andrew Morton
2020-12-15  3:04 ` [patch 019/200] hwtracing: intel: " Andrew Morton
2020-12-15  3:04 ` [patch 020/200] dma-buf: " Andrew Morton
2020-12-15  7:42   ` Christian König
2020-12-15  3:04 ` [patch 021/200] mm, slab, slub: clear the slab_cache field when freeing page Andrew Morton
2020-12-15  3:04 ` [patch 022/200] mm/slab: rerform init_on_free earlier Andrew Morton
2020-12-15 16:45   ` Alexander Potapenko
2020-12-15 20:46     ` Alexander Popov
2020-12-15 21:08       ` Alexander Popov
2020-12-15  3:04 ` [patch 023/200] mm, slub: use kmem_cache_debug_flags() in deactivate_slab() Andrew Morton
2020-12-15  3:04 ` [patch 024/200] mm/slub: let number of online CPUs determine the slub page order Andrew Morton
2020-12-15  3:04 ` [patch 025/200] device-dax/kmem: use struct_size() Andrew Morton
2020-12-15  3:04 ` [patch 026/200] mm: fix page_owner initializing issue for arm32 Andrew Morton
2020-12-15  3:04 ` [patch 027/200] mm/page_owner: record timestamp and pid Andrew Morton
2020-12-15  3:04 ` [patch 028/200] mm/filemap/c: break generic_file_buffered_read up into multiple functions Andrew Morton
2020-12-15  3:04 ` [patch 029/200] mm/filemap.c: generic_file_buffered_read() now uses find_get_pages_contig Andrew Morton
2020-12-15  3:04 ` [patch 030/200] mm/truncate: add parameter explanation for invalidate_mapping_pagevec Andrew Morton
2020-12-15  3:05 ` [patch 031/200] mm/filemap.c: remove else after a return Andrew Morton
2020-12-15  3:05 ` [patch 032/200] mm/gup_benchmark: rename to mm/gup_test Andrew Morton
2020-12-15  3:05 ` [patch 033/200] selftests/vm: use a common gup_test.h Andrew Morton
2020-12-15  3:05 ` [patch 034/200] selftests/vm: rename run_vmtests --> run_vmtests.sh Andrew Morton
2020-12-15  3:05 ` [patch 035/200] selftests/vm: minor cleanup: Makefile and gup_test.c Andrew Morton
2020-12-15  3:05 ` [patch 036/200] selftests/vm: only some gup_test items are really benchmarks Andrew Morton
2020-12-15  3:05 ` Andrew Morton [this message]
2020-12-15  3:05 ` [patch 038/200] selftests/vm: run_vmtests.sh: update and clean up gup_test invocation Andrew Morton
2020-12-15  3:05 ` [patch 039/200] selftests/vm: hmm-tests: remove the libhugetlbfs dependency Andrew Morton
2020-12-15  3:05 ` [patch 040/200] selftests/vm: 2x speedup for run_vmtests.sh Andrew Morton
2020-12-15  3:05 ` [patch 041/200] mm/gup_test.c: mark gup_test_init as __init function Andrew Morton
2020-12-15  3:05 ` [patch 042/200] mm/gup_test: GUP_TEST depends on DEBUG_FS Andrew Morton
2020-12-15  3:05 ` [patch 043/200] mm/gup: reorganize internal_get_user_pages_fast() Andrew Morton
2020-12-15  3:05 ` [patch 044/200] mm/gup: prevent gup_fast from racing with COW during fork Andrew Morton
2020-12-15  3:05 ` [patch 045/200] mm/gup: remove the vma allocation from gup_longterm_locked() Andrew Morton
2020-12-15  3:05 ` [patch 046/200] mm/gup: combine put_compound_head() and unpin_user_page() Andrew Morton
2020-12-15  3:05 ` [patch 047/200] mm: handle zone device pages in release_pages() Andrew Morton
2020-12-15  3:05 ` [patch 048/200] mm/swapfile.c: use helper function swap_count() in add_swap_count_continuation() Andrew Morton
2020-12-15  3:06 ` [patch 049/200] mm/swap_state: skip meaningless swap cache readahead when ra_info.win == 0 Andrew Morton
2020-12-15  3:06 ` [patch 050/200] mm/swapfile.c: remove unnecessary out label in __swap_duplicate() Andrew Morton
2020-12-15  3:06 ` [patch 051/200] mm/swapfile.c: use memset to fill the swap_map with SWAP_HAS_CACHE Andrew Morton
2020-12-15  3:06 ` [patch 052/200] mm: remove pagevec_lookup_range_nr_tag() Andrew Morton
2020-12-15  3:06 ` [patch 053/200] mm/shmem.c: make shmem_mapping() inline Andrew Morton
2020-12-15  3:06 ` [patch 054/200] tmpfs: fix Documentation nits Andrew Morton
2020-12-15  3:06 ` [patch 055/200] mm: memcontrol: add file_thp, shmem_thp to memory.stat Andrew Morton
2020-12-15  3:06 ` [patch 056/200] mm: memcontrol: remove unused mod_memcg_obj_state() Andrew Morton
2020-12-15  3:06 ` [patch 057/200] mm: memcontrol: eliminate redundant check in __mem_cgroup_insert_exceeded() Andrew Morton
2020-12-15  3:06 ` [patch 058/200] mm: memcg/slab: fix return of child memcg objcg for root memcg Andrew Morton
2020-12-15  3:06 ` [patch 059/200] mm: memcg/slab: fix use after free in obj_cgroup_charge Andrew Morton
2020-12-15  3:06 ` [patch 060/200] mm/rmap: always do TTU_IGNORE_ACCESS Andrew Morton
2020-12-15  3:06 ` [patch 061/200] mm/memcg: update page struct member in comments Andrew Morton
2020-12-15  3:06 ` [patch 062/200] mm: memcg: fix obsolete code comments Andrew Morton
2020-12-15  3:06 ` [patch 063/200] mm: memcg: deprecate the non-hierarchical mode Andrew Morton
2020-12-15  3:06 ` [patch 064/200] docs: cgroup-v1: reflect the deprecation of " Andrew Morton
2020-12-15  3:06 ` [patch 065/200] cgroup: remove obsoleted broken_hierarchy and warned_broken_hierarchy Andrew Morton
2020-12-15  3:06 ` [patch 066/200] mm/page_counter: use page_counter_read in page_counter_set_max Andrew Morton
2020-12-15  3:07 ` [patch 067/200] mm: memcg: remove obsolete memcg_has_children() Andrew Morton
2020-12-15  3:07 ` [patch 068/200] mm: memcg/slab: rename *_lruvec_slab_state to *_lruvec_kmem_state Andrew Morton
2020-12-15  3:07 ` [patch 069/200] mm: memcontrol: sssign boolean values to a bool variable Andrew Morton
2020-12-15  3:07 ` [patch 070/200] mm/memcg: remove incorrect comment Andrew Morton
2020-12-15  3:07 ` [patch 071/200] mm: move lruvec stats update functions to vmstat.h Andrew Morton
2020-12-15  3:07 ` [patch 072/200] mm: memcontrol: account pagetables per node Andrew Morton
2020-12-15  3:07 ` [patch 073/200] xen/unpopulated-alloc: consolidate pgmap manipulation Andrew Morton
2020-12-15  3:07 ` [patch 074/200] kselftests: vm: add mremap tests Andrew Morton
2020-12-15  3:07 ` [patch 075/200] mm: speedup mremap on 1GB or larger regions Andrew Morton
2020-12-15 19:52   ` Linus Torvalds
2020-12-15 23:16     ` Kalesh Singh
2020-12-15  3:07 ` [patch 076/200] arm64: mremap speedup - enable HAVE_MOVE_PUD Andrew Morton
2020-12-15  3:07 ` [patch 077/200] x86: mremap speedup - Enable HAVE_MOVE_PUD Andrew Morton
2020-12-15  3:07 ` [patch 078/200] mm: cleanup: remove unused tsk arg from __access_remote_vm Andrew Morton
2020-12-15  3:07 ` [patch 079/200] mm/mapping_dirty_helpers: enhance the kernel-doc markups Andrew Morton
2020-12-15  3:07 ` [patch 080/200] mm/page_vma_mapped.c: add colon to fix kernel-doc markups error for check_pte Andrew Morton
2020-12-15  3:07 ` [patch 081/200] mm: mmap_lock: add tracepoints around lock acquisition Andrew Morton
2020-12-15  3:07 ` [patch 082/200] sparc: fix handling of page table constructor failure Andrew Morton
2020-12-15  3:08 ` [patch 083/200] mm: move free_unref_page to mm/internal.h Andrew Morton
2020-12-15  3:08 ` [patch 084/200] mm/mremap: account memory on do_munmap() failure Andrew Morton
2020-12-15  3:08 ` [patch 085/200] mm/mremap: for MREMAP_DONTUNMAP check security_vm_enough_memory_mm() Andrew Morton
2020-12-15  3:08 ` [patch 086/200] mremap: don't allow MREMAP_DONTUNMAP on special_mappings and aio Andrew Morton
2020-12-28 17:59   ` Brian Geffon
2020-12-15  3:08 ` [patch 087/200] vm_ops: rename .split() callback to .may_split() Andrew Morton
2020-12-15  3:08 ` [patch 088/200] mremap: check if it's possible to split original vma Andrew Morton
2020-12-15  3:08 ` [patch 089/200] mm: forbid splitting special mappings Andrew Morton
2020-12-15  3:08 ` [patch 090/200] mm: track mmu notifiers in fs_reclaim_acquire/release Andrew Morton
2020-12-15  3:08 ` [patch 091/200] mm: extract might_alloc() debug check Andrew Morton
2020-12-15  3:08 ` [patch 092/200] locking/selftests: add testcases for fs_reclaim Andrew Morton
2020-12-15  3:08 ` [patch 093/200] mm/vmalloc.c:__vmalloc_area_node(): avoid 32-bit overflow Andrew Morton
2020-12-15  3:08 ` [patch 094/200] mm/vmalloc: use free_vm_area() if an allocation fails Andrew Morton
2020-12-15  3:08 ` [patch 095/200] mm/vmalloc: rework the drain logic Andrew Morton
2020-12-15  3:08 ` [patch 096/200] mm/vmalloc: add 'align' parameter explanation for pvm_determine_end_from_reverse Andrew Morton
2020-12-15  3:08 ` [patch 097/200] mm/vmalloc.c: remove unnecessary return statement Andrew Morton
2020-12-15  3:08 ` [patch 098/200] mm/vmalloc: Fix unlock order in s_stop() Andrew Morton
2020-12-15  3:09 ` [patch 099/200] docs/vm: remove unused 3 items explanation for /proc/vmstat Andrew Morton
2020-12-15  3:09 ` [patch 100/200] mm/vmalloc.c: fix kasan shadow poisoning size Andrew Morton
2020-12-15  3:09 ` [patch 101/200] workqueue: kasan: record workqueue stack Andrew Morton
2020-12-15  3:09 ` [patch 102/200] kasan: print " Andrew Morton
2020-12-15  3:09 ` [patch 103/200] lib/test_kasan.c: add workqueue test case Andrew Morton
2020-12-15  3:09 ` [patch 104/200] kasan: update documentation for generic kasan Andrew Morton
2020-12-15  3:09 ` [patch 105/200] lkdtm: disable KASAN for rodata.o Andrew Morton
2020-12-15  3:09 ` [patch 106/200] alpha: switch from DISCONTIGMEM to SPARSEMEM Andrew Morton
2020-12-15  3:09 ` [patch 107/200] ia64: remove custom __early_pfn_to_nid() Andrew Morton
2020-12-15  3:09 ` [patch 108/200] ia64: remove 'ifdef CONFIG_ZONE_DMA32' statements Andrew Morton
2020-12-15  3:09 ` [patch 109/200] ia64: discontig: paging_init(): remove local max_pfn calculation Andrew Morton
2020-12-15  3:09 ` [patch 110/200] ia64: split virtual map initialization out of paging_init() Andrew Morton
2020-12-15  3:09 ` [patch 111/200] ia64: forbid using VIRTUAL_MEM_MAP with FLATMEM Andrew Morton
2020-12-15  3:09 ` [patch 112/200] ia64: make SPARSEMEM default and disable DISCONTIGMEM Andrew Morton
2020-12-15  3:09 ` [patch 113/200] arm: remove CONFIG_ARCH_HAS_HOLES_MEMORYMODEL Andrew Morton
2020-12-15  3:09 ` [patch 114/200] arm, arm64: move free_unused_memmap() to generic mm Andrew Morton
2020-12-15  3:10 ` [patch 115/200] arc: use FLATMEM with freeing of unused memory map instead of DISCONTIGMEM Andrew Morton
2020-12-15  3:10 ` [patch 116/200] m68k/mm: make node data and node setup depend on CONFIG_DISCONTIGMEM Andrew Morton
2020-12-15  3:10 ` [patch 117/200] m68k/mm: enable use of generic memory_model.h for !DISCONTIGMEM Andrew Morton
2020-12-15  3:10 ` [patch 118/200] m68k: deprecate DISCONTIGMEM Andrew Morton
2020-12-15  3:10 ` [patch 119/200] mm: introduce debug_pagealloc_{map,unmap}_pages() helpers Andrew Morton
2020-12-15  3:10 ` [patch 120/200] PM: hibernate: make direct map manipulations more explicit Andrew Morton
2020-12-15  3:10 ` [patch 121/200] arch, mm: restore dependency of __kernel_map_pages() on DEBUG_PAGEALLOC Andrew Morton
2020-12-15  3:10 ` [patch 122/200] arch, mm: make kernel_page_present() always available Andrew Morton
2020-12-15  3:10 ` [patch 123/200] mm, page_alloc: clean up pageset high and batch update Andrew Morton
2020-12-15  3:10 ` [patch 124/200] mm, page_alloc: calculate pageset high and batch once per zone Andrew Morton
2020-12-15  3:10 ` [patch 125/200] mm, page_alloc: remove setup_pageset() Andrew Morton
2020-12-15  3:10 ` [patch 126/200] mm, page_alloc: simplify pageset_update() Andrew Morton
2020-12-15  3:10 ` [patch 127/200] mm, page_alloc: cache pageset high and batch in struct zone Andrew Morton
2020-12-15  3:10 ` [patch 128/200] mm, page_alloc: move draining pcplists to page isolation users Andrew Morton
2020-12-15  3:10 ` [patch 129/200] mm, page_alloc: disable pcplists during memory offline Andrew Morton
2020-12-15  3:11 ` [patch 130/200] include/linux/page-flags.h: remove unused __[Set|Clear]PagePrivate Andrew Morton
2020-12-15  3:11 ` [patch 131/200] mm/page-flags: fix comment Andrew Morton
2020-12-15  3:11 ` [patch 132/200] mm/page_alloc: add __free_pages() documentation Andrew Morton
2020-12-15  3:11 ` [patch 133/200] mm/page_alloc: mark some symbols with static keyword Andrew Morton
2020-12-15  3:11 ` [patch 134/200] mm/page_alloc: clear all pages in post_alloc_hook() with init_on_alloc=1 Andrew Morton
2020-12-15  3:11 ` [patch 135/200] init/main: fix broken buffer_init when DEFERRED_STRUCT_PAGE_INIT set Andrew Morton
2020-12-15  3:11 ` [patch 136/200] mm: page_alloc: refactor setup_per_zone_lowmem_reserve() Andrew Morton
2020-12-15  3:11 ` [patch 137/200] mm/page_alloc: speed up the iteration of max_order Andrew Morton
2020-12-15  3:11 ` [patch 138/200] mm,hwpoison: drain pcplists before bailing out for non-buddy zero-refcount page Andrew Morton
2020-12-15  3:11 ` [patch 139/200] mm,hwpoison: take free pages off the buddy freelists Andrew Morton
2020-12-15  3:11 ` [patch 140/200] mm,hwpoison: drop unneeded pcplist draining Andrew Morton
2020-12-15  3:11 ` [patch 141/200] mm,hwpoison: refactor get_any_page Andrew Morton
2020-12-15  3:11 ` [patch 142/200] mm,hwpoison: disable pcplists before grabbing a refcount Andrew Morton
2020-12-15  3:11 ` [patch 143/200] mm,hwpoison: remove drain_all_pages from shake_page Andrew Morton
2020-12-15  3:11 ` [patch 144/200] mm,memory_failure: always pin the page in madvise_inject_error Andrew Morton
2020-12-15  3:11 ` [patch 145/200] mm,hwpoison: return -EBUSY when migration fails Andrew Morton
2020-12-15  3:11 ` [patch 146/200] mm/hugetlb.c: just use put_page_testzero() instead of page_count() Andrew Morton
2020-12-15  3:11 ` [patch 147/200] include/linux/huge_mm.h: remove extern keyword Andrew Morton
2020-12-15  3:12 ` [patch 148/200] khugepaged: add parameter explanations for kernel-doc markup Andrew Morton
2020-12-15  3:12 ` [patch 149/200] mm: hugetlb: fix type of delta parameter and related local variables in gather_surplus_pages() Andrew Morton
2020-12-15  3:12 ` [patch 150/200] mm,hugetlb: remove unneeded initialization Andrew Morton
2020-12-15  3:12 ` [patch 151/200] hugetlb: fix an error code in hugetlb_reserve_pages() Andrew Morton
2020-12-15  3:12 ` [patch 152/200] mm: don't wake kswapd prematurely when watermark boosting is disabled Andrew Morton
2020-12-15  3:12 ` [patch 153/200] mm/vmscan: drop unneeded assignment in kswapd() Andrew Morton
2020-12-15  3:12 ` [patch 154/200] mm/vmscan.c: remove the filename in the top of file comment Andrew Morton
2020-12-15  3:12 ` [patch 155/200] mm/page_isolation: do not isolate the max order page Andrew Morton
2020-12-15  3:12 ` [patch 156/200] z3fold: simplify freeing slots Andrew Morton
2020-12-15  3:12 ` [patch 157/200] z3fold: stricter locking and more careful reclaim Andrew Morton
2020-12-15  3:12 ` [patch 158/200] z3fold: remove preempt disabled sections for RT Andrew Morton
2020-12-15  3:12 ` [patch 159/200] mm/compaction: rename 'start_pfn' to 'iteration_start_pfn' in compact_zone() Andrew Morton
2020-12-15  3:12 ` [patch 160/200] mm/compaction: move compaction_suitable's comment to right place Andrew Morton
2020-12-15  3:12 ` [patch 161/200] mm/compaction: make defer_compaction and compaction_deferred static Andrew Morton
2020-12-15  3:12 ` [patch 162/200] mm/oom_kill: change comment and rename is_dump_unreclaim_slabs() Andrew Morton
2020-12-15  3:12 ` [patch 163/200] mm/migrate.c: fix comment spelling Andrew Morton
2020-12-15  3:12 ` [patch 164/200] mm/migrate.c: optimize migrate_vma_pages() mmu notifier Andrew Morton
2020-12-15  3:12 ` [patch 165/200] mm: support THPs in zero_user_segments Andrew Morton
2020-12-15  3:13 ` [patch 166/200] mm: truncate_complete_page() does not exist any more Andrew Morton
2020-12-15  3:13 ` [patch 167/200] mm: migrate: simplify the logic for handling permanent failure Andrew Morton
2020-12-15  3:13 ` [patch 168/200] mm: migrate: skip shared exec THP for NUMA balancing Andrew Morton
2020-12-15  3:13 ` [patch 169/200] mm: migrate: clean up migrate_prep{_local} Andrew Morton
2020-12-15  3:13 ` [patch 170/200] mm: migrate: return -ENOSYS if THP migration is unsupported Andrew Morton
2020-12-15  3:13 ` [patch 171/200] mm: migrate: remove unused parameter in migrate_vma_insert_page() Andrew Morton
2020-12-15  3:13 ` [patch 172/200] mm/cma.c: remove redundant cma_mutex lock Andrew Morton
2020-12-15  3:13 ` [patch 173/200] mm: cma: improve pr_debug log in cma_release() Andrew Morton
2020-12-15  3:13 ` [patch 174/200] mm, page_alloc: do not rely on the order of page_poison and init_on_alloc/free parameters Andrew Morton
2020-12-15  3:13 ` [patch 175/200] mm, page_poison: use static key more efficiently Andrew Morton
2020-12-15  3:13 ` [patch 176/200] kernel/power: allow hibernation with page_poison sanity checking Andrew Morton
2020-12-15  3:13 ` [patch 177/200] mm, page_poison: remove CONFIG_PAGE_POISONING_NO_SANITY Andrew Morton
2020-12-15  3:13 ` [patch 178/200] mm, page_poison: remove CONFIG_PAGE_POISONING_ZERO Andrew Morton
2020-12-15  3:13 ` [patch 179/200] userfaultfd: add UFFD_USER_MODE_ONLY Andrew Morton
2020-12-15  3:13 ` [patch 180/200] userfaultfd: add user-mode only option to unprivileged_userfaultfd sysctl knob Andrew Morton
2020-12-15  3:13 ` [patch 181/200] userfaultfd: selftests: make __{s,u}64 format specifiers portable Andrew Morton
2020-12-15  3:14 ` [patch 182/200] userfaultfd/selftests: always dump something in modes Andrew Morton
2020-12-15  3:14 ` [patch 183/200] userfaultfd/selftests: fix retval check for userfaultfd_open() Andrew Morton
2020-12-15  3:14 ` [patch 184/200] userfaultfd/selftests: hint the test runner on required privilege Andrew Morton
2020-12-15  3:14 ` [patch 185/200] mm/zswap: make struct kernel_param_ops definitions const Andrew Morton
2020-12-15  3:14 ` [patch 186/200] mm/zswap: fix passing zero to 'PTR_ERR' warning Andrew Morton
2020-12-15  3:14 ` [patch 187/200] mm/zswap: move to use crypto_acomp API for hardware acceleration Andrew Morton
2020-12-15  3:14 ` [patch 188/200] mm/zsmalloc.c: rework the list_add code in insert_zspage() Andrew Morton
2020-12-15  3:14 ` [patch 189/200] mm/process_vm_access: remove redundant initialization of iov_r Andrew Morton
2020-12-15  3:14 ` [patch 190/200] zram: support page writeback Andrew Morton
2020-12-15  3:14 ` [patch 191/200] zram: add stat to gather incompressible pages since zram set up Andrew Morton
2020-12-15  3:14 ` [patch 192/200] zram: break the strict dependency from lzo Andrew Morton
2020-12-15  3:14 ` [patch 193/200] mm: fix kernel-doc markups Andrew Morton
2020-12-15  3:14 ` [patch 194/200] mm: use sysfs_emit for struct kobject * uses Andrew Morton
2020-12-15  3:14 ` [patch 195/200] mm: huge_memory: convert remaining use of sprintf to sysfs_emit and neatening Andrew Morton
2020-12-15  3:14 ` [patch 196/200] mm:backing-dev: use sysfs_emit in macro defining functions Andrew Morton
2020-12-15  3:14 ` [patch 197/200] mm: shmem: convert shmem_enabled_show to use sysfs_emit_at Andrew Morton
2020-12-15  3:14 ` [patch 198/200] mm: slub: convert sysfs sprintf family to sysfs_emit/sysfs_emit_at Andrew Morton
2020-12-15  3:15 ` [patch 199/200] mm: fix fall-through warnings for Clang Andrew Morton
2020-12-15  3:15 ` [patch 200/200] mm: cleanup kstrto*() usage Andrew Morton
2020-12-15  3:25 ` incoming Linus Torvalds
2020-12-15  3:30   ` incoming Linus Torvalds
2020-12-15 14:04     ` incoming Konstantin Ryabitsev

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