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@xxxxxxxxxxxxxxxxxxxx>
Subject: core_pattern-set-core-helpers-root-and-namespace-to-crashing-process-fix
fix doc typo, simplify format_corename()
Cc: Alexander Viro <viro@xxxxxxxxxxxxxxxxxx>
Cc: Daniel Berrange <berrange@xxxxxxxxxx>
Cc: Neil Horman <nhorman@xxxxxxxxxxxxx>
Cc: Serge Hallyn <serge.hallyn@xxxxxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
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
_
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