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authorShuoran Liu2016-01-27 09:57:30 +0800
committerJaegeuk Kim2016-02-22 16:07:23 -0800
commit8f1dbbbbdfe9bada7e2f8041e07c6373f787c043 (patch)
tree25fb006ca5bc2f960722210241c0f9e14af9c0d1 /mm/fadvise.c
parent6fe2bc95616650104020e821ea84c086cce1e290 (diff)
f2fs: introduce lifetime write IO statistics
This patch introduces lifetime IO write statistics exposed to the sysfs interface. The write IO amount is obtained from block layer, accumulated in the file system and stored in the hot node summary of checkpoint. Signed-off-by: Shuoran Liu <liushuoran@huawei.com> Signed-off-by: Pengyang Hou <houpengyang@huawei.com> [Jaegeuk Kim: add sysfs documentation] Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
Diffstat (limited to 'mm/fadvise.c')
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