diff options
| author | YueHaibing <[email protected]> | 2019-03-07 16:26:36 -0800 |
|---|---|---|
| committer | Linus Torvalds <[email protected]> | 2019-03-07 18:31:59 -0800 |
| commit | 4169680e9f7cdbf893f8885611b3235aeda94224 (patch) | |
| tree | 872f4d1ec79495af4f8d0739b78b4a69c1ba80ca /tools/perf/scripts/python/check-perf-trace.py | |
| parent | c461aed3a423dda442aad38047c3f2bb0f9e2012 (diff) | |
kernel/panic.c: taint: fix debugfs_simple_attr.cocci warnings
Use DEFINE_DEBUGFS_ATTRIBUTE rather than DEFINE_SIMPLE_ATTRIBUTE for
debugfs files.
Semantic patch information:
Rationale: DEFINE_SIMPLE_ATTRIBUTE + debugfs_create_file()
imposes some significant overhead as compared to
DEFINE_DEBUGFS_ATTRIBUTE + debugfs_create_file_unsafe().
Generated by: scripts/coccinelle/api/debugfs/debugfs_simple_attr.cocci
The _unsafe() part suggests that some of them "safeness
responsibilities" are now panic.c responsibilities. The patch is OK
since panic's clear_warn_once_fops struct file_operations is safe
against removal, so we don't have to use otherwise necessary
debugfs_file_get()/debugfs_file_put().
[[email protected]: changelog addition]
Link: http://lkml.kernel.org/r/[email protected]
Signed-off-by: YueHaibing <[email protected]>
Reviewed-by: Sergey Senozhatsky <[email protected]>
Cc: Kees Cook <[email protected]>
Cc: Borislav Petkov <[email protected]>
Cc: Steven Rostedt (VMware) <[email protected]>
Cc: Petr Mladek <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>
Diffstat (limited to 'tools/perf/scripts/python/check-perf-trace.py')
0 files changed, 0 insertions, 0 deletions