The patch titled
Subject: align-crash_notes-allocation-to-make-it-be-inside-one-physical-page-fix
has been added to the -mm tree. Its filename is
align-crash_notes-allocation-to-make-it-be-inside-one-physical-page-fix.patch
This patch should soon appear at
http://ozlabs.org/~akpm/mmots/broken-out/align-crash_notes-allocation-to-make-it-be-inside-one-physical-page-fix.patch
and later at
http://ozlabs.org/~akpm/mmotm/broken-out/align-crash_notes-allocation-to-make-it-be-inside-one-physical-page-fix.patch
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------------------------------------------------------
From: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
Subject: align-crash_notes-allocation-to-make-it-be-inside-one-physical-page-fix
use correct comment layout
Cc: Baoquan He <bhe@xxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
kernel/kexec_core.c | 12 ++++++++----
1 file changed, 8 insertions(+), 4 deletions(-)
diff -puN kernel/kexec_core.c~align-crash_notes-allocation-to-make-it-be-inside-one-physical-page-fix kernel/kexec_core.c
--- a/kernel/kexec_core.c~align-crash_notes-allocation-to-make-it-be-inside-one-physical-page-fix
+++ a/kernel/kexec_core.c
@@ -1006,19 +1006,23 @@ static int __init crash_notes_memory_ini
/* Allocate memory for saving cpu registers. */
size_t size, align;
- /* crash_notes could be allocated across 2 vmalloc pages when percpu
+ /*
+ * crash_notes could be allocated across 2 vmalloc pages when percpu
* is vmalloc based . vmalloc doesn't guarantee 2 continuous vmalloc
* pages are also on 2 continuous physical pages. In this case the
* 2nd part of crash_notes in 2nd page could be lost since only the
* starting address and size of crash_notes are exported through sysfs.
* Here round up the size of crash_notes to the nearest power of two
* and pass it to __alloc_percpu as align value. This can make sure
- * crash_notes is allocated inside one physical page. */
+ * crash_notes is allocated inside one physical page.
+ */
size = sizeof(note_buf_t);
align = min(roundup_pow_of_two(sizeof(note_buf_t)), PAGE_SIZE);
- /* Break compile if size is bigger than PAGE_SIZE since crash_notes
- * definitely will be in 2 pages with that. */
+ /*
+ * Break compile if size is bigger than PAGE_SIZE since crash_notes
+ * definitely will be in 2 pages with that.
+ */
BUILD_BUG_ON(size > PAGE_SIZE);
crash_notes = __alloc_percpu(size, align);
_
Patches currently in -mm which might be from akpm@xxxxxxxxxxxxxxxxxxxx are
arch-alpha-kernel-systblss-remove-debug-check.patch
ipcsem-fix-use-after-free-on-ipc_rmid-after-a-task-using-same-semaphore-set-exits-fix.patch
mm-hwpoison-fix-panic-due-to-split-huge-zero-page-fix.patch
kernel-kthreadc-kthread_create_on_node-clarify-documentation.patch
scripts-spellingtxt-adding-misspelled-word-for-check-fix.patch
ocfs2-sysfile-interfaces-for-online-file-check-fix.patch
fs-create-and-use-seq_show_option-for-escaping-fix.patch
watchdog-introduce-watchdog_suspend-and-watchdog_resume-fix.patch
watchdog-use-suspend-resume-interface-in-fixup_ht_bug-fix.patch
mm.patch
userfaultfd-change-the-read-api-to-return-a-uffd_msg-fix-2.patch
userfaultfd-change-the-read-api-to-return-a-uffd_msg-fix-2-fix.patch
userfaultfd-avoid-mmap_sem-read-recursion-in-mcopy_atomic-fix.patch
genalloc-add-name-arg-to-gen_pool_get-and-devm_gen_pool_create-fix.patch
genalloc-add-support-of-multiple-gen_pools-per-device-fix.patch
mm-make-gup-handle-pfn-mapping-unless-foll_get-is-requested-fix.patch
dax-revert-userfaultfd-change.patch
thp-prepare-for-dax-huge-pages-fix.patch
pagemap-add-mmap-exclusive-bit-for-marking-pages-mapped-only-here-fix.patch
pagemap-update-documentation-fix.patch
mm-show-proportional-swap-share-of-the-mapping-fix.patch
mm-improve-__gfp_noretry-comment-based-on-implementation-fix.patch
memcg-export-struct-mem_cgroup-fix.patch
memcg-export-struct-mem_cgroup-fix-2.patch
mm-hugetlb-add-cache-of-descriptors-to-resv_map-for-region_add-fix.patch
mm-srcu-ify-shrinkers-fix-fix.patch
x86-use-generic-early-mem-copy-fix.patch
mm-hugetlb-add-vmhugetlbrss-field-in-proc-pid-status-fix.patch
mm-hwpoison-introduce-put_hwpoison_page-to-put-refcount-for-memory-error-handling-fix.patch
include-linux-page-flagsh-rename-macros-to-avoid-collisions.patch
proc-add-kpageidle-file-fix-6-fix.patch
proc-add-kpageidle-file-fix-6-fix-2-fix.patch
proc-export-idle-flag-via-kpageflags-fix.patch
mm-vmscan-fix-the-page-state-calculation-in-too_many_isolated.patch
x86-add-pmd_-for-thp-fix.patch
sparc-add-pmd_-for-thp-fix.patch
mm-support-madvisemadv_free-fix-2.patch
mm-dont-split-thp-page-when-syscall-is-called-fix-3.patch
mm-move-lazy-free-pages-to-inactive-list-fix-fix.patch
mm-move-lazy-free-pages-to-inactive-list-fix-fix-fix.patch
zswap-dynamic-pool-creation-fix.patch
procfs-always-expose-proc-pid-map_files-and-make-it-readable-fix.patch
procfs-always-expose-proc-pid-map_files-and-make-it-readable-fix-fix.patch
fs-coda-fix-readlink-buffer-overflow-checkpatch-fixes.patch
kexec-split-kexec_load-syscall-from-kexec-core-code-checkpatch-fixes.patch
align-crash_notes-allocation-to-make-it-be-inside-one-physical-page-fix.patch
linux-next.patch
linux-next-rejects.patch
drivers-gpu-drm-i915-intel_spritec-fix-build.patch
drivers-gpu-drm-i915-intel_tvc-fix-build.patch
net-netfilter-ipset-work-around-gcc-444-initializer-bug.patch
fs-seq_file-convert-int-seq_vprint-seq_printf-etc-returns-to-void-fix.patch
fs-seq_file-convert-int-seq_vprint-seq_printf-etc-returns-to-void-fix-fix.patch
mm-mpx-add-vm_flags_t-vm_flags-arg-to-do_mmap_pgoff-fix-checkpatch-fixes.patch
do_shared_fault-check-that-mmap_sem-is-held.patch
kernel-forkc-export-kernel_thread-to-modules.patch
mutex-subsystem-synchro-test-module.patch
slab-leaks3-default-y.patch
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