+ core_pattern-set-core-helpers-root-and-namespace-to-crashing-process-fix.patch added to -mm tree

[akpm@linux-foundation.org]

The patch titled
     Subject: core_pattern-set-core-helpers-root-and-namespace-to-crashing-process-fix
has been added to the -mm tree.  Its filename is
     core_pattern-set-core-helpers-root-and-namespace-to-crashing-process-fix.patch

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------------------------------------------------------
From: Andrew Morton <akpm@linux-foundation.org>
Subject: core_pattern-set-core-helpers-root-and-namespace-to-crashing-process-fix

fix doc typo, simplify format_corename()

Cc: Alexander Viro <viro@zeniv.linux.org.uk>
Cc: Daniel Berrange <berrange@redhat.com>
Cc: Neil Horman <nhorman@tuxdriver.com>
Cc: Serge Hallyn <serge.hallyn@canonical.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
---

 Documentation/sysctl/kernel.txt |    2 +-
 fs/coredump.c                   |   10 ++++------
 2 files changed, 5 insertions(+), 7 deletions(-)

diff -puN Documentation/sysctl/kernel.txt~core_pattern-set-core-helpers-root-and-namespace-to-crashing-process-fix Documentation/sysctl/kernel.txt
--- a/Documentation/sysctl/kernel.txt~core_pattern-set-core-helpers-root-and-namespace-to-crashing-process-fix
+++ a/Documentation/sysctl/kernel.txt
@@ -194,7 +194,7 @@ core_pattern is used to specify a core d
   written to the standard input of that program instead of to a file.  Note that
   when using |, the core pipe reader that is executed will be run in the global
   namespace and root filesystem.  If two | tokens (i.e. ||) are supplied as the
-  first two characters of the core_pattern sysctl, the kernel will preform the
+  first two characters of the core_pattern sysctl, the kernel will perform the
   same pipe operation, but the core pipe reader will be executed using the
   namespace and root fs of the crashing process.
 
diff -puN fs/coredump.c~core_pattern-set-core-helpers-root-and-namespace-to-crashing-process-fix fs/coredump.c
--- a/fs/coredump.c~core_pattern-set-core-helpers-root-and-namespace-to-crashing-process-fix
+++ a/fs/coredump.c
@@ -164,16 +164,14 @@ static int format_corename(struct core_n
 	if (!cn->corename)
 		return -ENOMEM;
 
-	if (ispipe) {
+	if (ispipe && pat_ptr[1] == '|') {
 		/*
- 		 * If we have 2 | tokens at the head of core_pattern, it
+ 		 * We have 2 | tokens at the head of core_pattern which
  		 * indicates we are a pipe and the reader should inherit the
  		 * namespaces of the crashing process
  		 */
-		cprm->switch_ns = (*(pat_ptr+1) == '|') ? true : false;
-		if (cprm->switch_ns)
-			/* Advance pat_ptr so as not to mess up corename */
-			pat_ptr++;
+		cprm->switch_ns = true;
+		pat_ptr++;
 	}
 
 	/* Repeat as long as we have more pattern to process and more output
_

Patches currently in -mm which might be from akpm@linux-foundation.org are

origin.patch
linux-next.patch
linux-next-rejects-git-rejects.patch
i-need-old-gcc.patch
arch-alpha-kernel-systblss-remove-debug-check.patch
arch-x86-platform-iris-irisc-register-a-platform-device-and-a-platform-driver.patch
arch-x86-tools-insn_sanityc-identify-source-of-messages.patch
fb-rework-locking-to-fix-lock-ordering-on-takeover-fix.patch
fb-rework-locking-to-fix-lock-ordering-on-takeover-fix-2.patch
irq-tsk-comm-is-an-array.patch
block-remove-deadlock-in-disk_clear_events-fix.patch
block-prevent-race-cleanup-fix.patch
mm.patch
memcg-kmem-accounting-basic-infrastructure-fix.patch
slub-slub-specific-propagation-changes-fix.patch
mm-mprotectc-coding-style-cleanups.patch
mm-hugetlb-create-hugetlb-cgroup-file-in-hugetlb_init-fix.patch
drop_caches-add-some-documentation-and-info-messsge-checkpatch-fixes.patch
swap-add-a-simple-detector-for-inappropriate-swapin-readahead-fix.patch
memcg-debugging-facility-to-access-dangling-memcgs-fix.patch
scripts-pnmtologo-fix-for-plain-pbm-checkpatch-fixes.patch
lseek-the-whence-argument-is-called-whence.patch
drivers-video-backlight-lp855x_blc-use-generic-pwm-functions-fix.patch
backlight-add-of_find_backlight_by_node-function-fix.patch
backlight-88pm860x_bl-remove-an-unnecessary-line-continuation-fix.patch
drivers-firmware-dmi_scanc-check-dmi-version-when-get-system-uuid-fix.patch
drivers-firmware-dmi_scanc-fetch-dmi-version-from-smbios-if-it-exists-checkpatch-fixes.patch
binfmt_elf-fix-corner-case-kfree-of-uninitialized-data-checkpatch-fixes.patch
binfmt_elfc-use-get_random_int-to-fix-entropy-depleting.patch
rtc-avoid-calling-platform_device_put-twice-in-test_init-fix.patch
hfsplus-add-osx-prefix-for-handling-namespace-of-mac-os-x-extended-attributes-checkpatch-fixes.patch
hfsplus-rework-processing-of-hfs_btree_write-returned-error-fix.patch
core_pattern-set-core-helpers-root-and-namespace-to-crashing-process-fix.patch
procfs-add-vmflags-field-in-smaps-output-v4.patch
procfs-add-vmflags-field-in-smaps-output-v4-fix.patch
ipc-add-sysctl-to-specify-desired-next-object-id-checkpatch-fixes.patch
ipc-message-queue-receive-cleanup-checkpatch-fixes.patch
ipc-convert-prepare_copy-from-macro-to-function-fix.patch
dma-debug-new-interfaces-to-debug-dma-mapping-errors-fix-fix.patch
docs-add-documentation-about-proc-pid-fdinfo-fd-output-fix.patch
fs-notify-add-procfs-fdinfo-helper-v7-fix.patch
scatterlist-dont-bug-when-we-can-trivially-return-a-proper-error-fix.patch
journal_add_journal_head-debug.patch
kernel-forkc-export-kernel_thread-to-modules.patch
mutex-subsystem-synchro-test-module-fix.patch
slab-leaks3-default-y.patch
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