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| author | Akinobu Mita <akinobu.mita@gmail.com> | 2017-07-14 23:50:00 +0200 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2017-07-15 00:05:13 +0200 |
| commit | 168c42bc56d8d47f67f2a5206506cd4ba3c18475 (patch) | |
| tree | 7e82690179b0b796505e493452f04c60df3613d9 /Documentation/fault-injection | |
| parent | fault-inject: simplify access check for fail-nth (diff) | |
| download | linux-168c42bc56d8d47f67f2a5206506cd4ba3c18475.tar.xz linux-168c42bc56d8d47f67f2a5206506cd4ba3c18475.zip | |
fault-inject: add /proc/<pid>/fail-nth
fail-nth interface is only created in /proc/self/task/<current-tid>/.
This change also adds it in /proc/<pid>/.
This makes shell based tool a bit simpler.
$ bash -c "builtin echo 100 > /proc/self/fail-nth && exec ls /"
Link: http://lkml.kernel.org/r/1491490561-10485-6-git-send-email-akinobu.mita@gmail.com
Signed-off-by: Akinobu Mita <akinobu.mita@gmail.com>
Cc: Dmitry Vyukov <dvyukov@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'Documentation/fault-injection')
| -rw-r--r-- | Documentation/fault-injection/fault-injection.txt | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/Documentation/fault-injection/fault-injection.txt b/Documentation/fault-injection/fault-injection.txt index 370ddcbc2b44..918972babcd8 100644 --- a/Documentation/fault-injection/fault-injection.txt +++ b/Documentation/fault-injection/fault-injection.txt @@ -136,7 +136,8 @@ use the boot option: o proc entries -- /proc/self/task/<current-tid>/fail-nth: +- /proc/<pid>/fail-nth: +- /proc/self/task/<tid>/fail-nth: Write to this file of integer N makes N-th call in the task fail. Read from this file returns a integer value. A value of '0' indicates |