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| author | Wang Nan <wangnan0@huawei.com> | 2015-04-07 08:22:45 +0000 |
|---|---|---|
| committer | Arnaldo Carvalho de Melo <acme@redhat.com> | 2015-04-08 09:07:03 -0300 |
| commit | ba92732e9808df679ddf75c5ea1c0caae6d7dce2 (patch) | |
| tree | f00303efe3ed8cd3f2c5508d8af87db9b0137a82 /include/asm-generic | |
| parent | 8ea92ceb748535799e3e9f35afb85bdc23bf6d7c (diff) | |
| download | linux-ba92732e9808df679ddf75c5ea1c0caae6d7dce2.tar.gz linux-ba92732e9808df679ddf75c5ea1c0caae6d7dce2.tar.bz2 linux-ba92732e9808df679ddf75c5ea1c0caae6d7dce2.zip | |
perf kmaps: Check kmaps to make code more robust
This patch add checks in places where map__kmap is used to get kmaps
from struct kmap.
Error messages are added at map__kmap to warn invalid accessing of kmap
(for the case of !map->dso->kernel, kmap(map) does not exists at all).
Also, introduces map__kmaps() to warn uninitialized kmaps.
Reviewed-by: Ingo Molnar <mingo@kernel.org>
Signed-off-by: Wang Nan <wangnan0@huawei.com>
Cc: pi3orama@163.com
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Zefan Li <lizefan@huawei.com>
Link: http://lkml.kernel.org/r/1428394966-131044-2-git-send-email-wangnan0@huawei.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'include/asm-generic')
0 files changed, 0 insertions, 0 deletions