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| author | Jakub Kicinski <jakub.kicinski@netronome.com> | 2016-11-10 19:46:44 +0100 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2016-11-11 17:12:37 +0100 |
| commit | d7c19b066dcf4bd19c4385e8065558d4e74f9e73 (patch) | |
| tree | bd0185782655c900a4fafd1f51219d46905c943b /mm | |
| parent | memcg: prevent memcg caches to be both OFF_SLAB & OBJFREELIST_SLAB (diff) | |
| download | linux-d7c19b066dcf4bd19c4385e8065558d4e74f9e73.tar.xz linux-d7c19b066dcf4bd19c4385e8065558d4e74f9e73.zip | |
mm: kmemleak: scan .data.ro_after_init
Limit the number of kmemleak false positives by including
.data.ro_after_init in memory scanning. To achieve this we need to add
symbols for start and end of the section to the linker scripts.
The problem was been uncovered by commit 56989f6d8568 ("genetlink: mark
families as __ro_after_init").
Link: http://lkml.kernel.org/r/1478274173-15218-1-git-send-email-jakub.kicinski@netronome.com
Reviewed-by: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: Cong Wang <xiyou.wangcong@gmail.com>
Cc: Johannes Berg <johannes@sipsolutions.net>
Cc: Martin Schwidefsky <schwidefsky@de.ibm.com>
Cc: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'mm')
| -rw-r--r-- | mm/kmemleak.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/mm/kmemleak.c b/mm/kmemleak.c index e5355a5b423f..d1380ed93fdf 100644 --- a/mm/kmemleak.c +++ b/mm/kmemleak.c @@ -1414,6 +1414,7 @@ static void kmemleak_scan(void) /* data/bss scanning */ scan_large_block(_sdata, _edata); scan_large_block(__bss_start, __bss_stop); + scan_large_block(__start_data_ro_after_init, __end_data_ro_after_init); #ifdef CONFIG_SMP /* per-cpu sections scanning */ |