Hi all, This patch set contains two patches. The first one is a trival patch, which does some cleanups for the trace point of extent status tree shrinker. The second one is to add some statistics for extent status tree shrinker in order that we want to collect some more details when we encounter a stall. As discussion with Ted and other folks, we need to add some counters to reflect the behaviour of the shrinker, and later we can use these counters to measure the performance for the shrinker improvements. Meanwhile these information can help us to reproduce the problem when the user reports that their machine is stall caused by the shrinker. Any comment or suggestion are always welcome. Thanks, - Zheng Zheng Liu (2): ext4: improve extents status tree trace point ext4: track extent status tree shrinker delay statictics fs/ext4/ext4.h | 4 +- fs/ext4/extents_status.c | 177 +++++++++++++++++++++++++++++++++++++++---- fs/ext4/extents_status.h | 10 ++- fs/ext4/super.c | 17 ++--- include/trace/events/ext4.h | 59 +++++++++++++-- 5 files changed, 233 insertions(+), 34 deletions(-) -- 1.7.9.7 -- To unsubscribe from this list: send the line "unsubscribe linux-ext4" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
