The patch titled
Subject: userfaultfd-avoid-mmap_sem-read-recursion-in-mcopy_atomic-fix
has been added to the -mm tree. Its filename is
userfaultfd-avoid-mmap_sem-read-recursion-in-mcopy_atomic-fix.patch
This patch should soon appear at
http://ozlabs.org/~akpm/mmots/broken-out/userfaultfd-avoid-mmap_sem-read-recursion-in-mcopy_atomic-fix.patch
and later at
http://ozlabs.org/~akpm/mmotm/broken-out/userfaultfd-avoid-mmap_sem-read-recursion-in-mcopy_atomic-fix.patch
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------------------------------------------------------
From: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
Subject: userfaultfd-avoid-mmap_sem-read-recursion-in-mcopy_atomic-fix
delete weird BUILD_BUG_ON()
Cc: Andrea Arcangeli <aarcange@xxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
mm/userfaultfd.c | 1 -
1 file changed, 1 deletion(-)
diff -puN mm/userfaultfd.c~userfaultfd-avoid-mmap_sem-read-recursion-in-mcopy_atomic-fix mm/userfaultfd.c
--- a/mm/userfaultfd.c~userfaultfd-avoid-mmap_sem-read-recursion-in-mcopy_atomic-fix
+++ a/mm/userfaultfd.c
@@ -256,7 +256,6 @@ retry:
if (unlikely(err == -EFAULT)) {
void *page_kaddr;
- BUILD_BUG_ON(zeropage);
up_read(&dst_mm->mmap_sem);
BUG_ON(!page);
_
Patches currently in -mm which might be from akpm@xxxxxxxxxxxxxxxxxxxx are
arch-alpha-kernel-systblss-remove-debug-check.patch
fs-binfmt_elfc-load_elf_binary-return-einval-on-zero-length-mappings.patch
ocfs2-reduce-object-size-of-mlog-uses-fix.patch
ocfs2-remove-__mlog_cpu_guess.patch
ocfs2-remove-__mlog_cpu_guess-fix.patch
ocfs2-fix-null-pointer-dereference-in-function-ocfs2_abort_trigger-fix.patch
mm.patch
mm-slab_common-support-the-slub_debug-boot-option-on-specific-object-size-fix.patch
slub-bulk-allocation-from-per-cpu-partial-pages-fix.patch
mm-fix-mprotect-behaviour-on-vm_locked-vmas-fix.patch
mm-new-mm-hook-framework.patch
mm-meminit-inline-some-helper-functions-fix.patch
mm-meminit-finish-initialisation-of-struct-pages-before-basic-setup-fix.patch
mm-memory-failure-introduce-get_hwpoison_page-for-consistent-refcount-handling-fix.patch
rmap-fix-theoretical-race-between-do_wp_page-and-shrink_active_list-fix.patch
rmap-fix-theoretical-race-between-do_wp_page-and-shrink_active_list-fix-fix.patch
userfaultfd-avoid-mmap_sem-read-recursion-in-mcopy_atomic-fix.patch
hugetlb-do-not-account-hugetlb-pages-as-nr_file_pages-fix.patch
mm-hugetlb-handle-races-in-alloc_huge_page-and-hugetlb_reserve_pages-fix.patch
include-linux-page-flagsh-rename-macros-to-avoid-collisions.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
proc-fix-page_size-limit-of-proc-pid-cmdline-fix.patch
bitmap-remove-explicit-newline-handling-using-scnprintf-format-string-fix.patch
radix-tree-replace-preallocated-node-array-with-linked-list-fix.patch
rtc-omap-add-external-32k-clock-feature-fix.patch
devpts-if-initialization-failed-dont-crash-when-opening-dev-ptmx-fix.patch
linux-next.patch
linux-next-rejects.patch
linux-next-git-rejects.patch
arch-x86-kvm-mmuc-work-around-gcc-444-bug.patch
do_shared_fault-check-that-mmap_sem-is-held.patch
journal_add_journal_head-debug.patch
journal_add_journal_head-debug-fix.patch
kernel-forkc-export-kernel_thread-to-modules.patch
mutex-subsystem-synchro-test-module.patch
slab-leaks3-default-y.patch
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