1. 22 Mar, 2017 17 commits
  2. 21 Mar, 2017 19 commits
  3. 20 Mar, 2017 4 commits
    • Arnd Bergmann's avatar
      remoteproc: qcom: fix QCOM_SMD dependencies · c3104aae
      Arnd Bergmann authored
      qcom_smd_register_edge() is provided by either QCOM_SMD or RPMSG_QCOM_SMD,
      and if both of them are disabled, it does nothing.
      
      The check for the PIL drivers however only checks for QCOM_SMD, so it breaks
      with QCOM_SMD=n && RPMSG_QCOM_SMD=m:
      
      drivers/remoteproc/built-in.o: In function `smd_subdev_remove':
      qcom_wcnss_iris.c:(.text+0x231c): undefined reference to `qcom_smd_unregister_edge'
      drivers/remoteproc/built-in.o: In function `smd_subdev_probe':
      qcom_wcnss_iris.c:(.text+0x2344): undefined reference to `qcom_smd_register_edge'
      drivers/remoteproc/built-in.o: In function `smd_subdev_probe':
      qcom_q6v5_pil.c:(.text+0x3538): undefined reference to `qcom_smd_register_edge'
      qcom_q6v5_pil.c:(.text+0x3538): relocation truncated to fit: R_AARCH64_CALL26 against undefined symbol `qcom_smd_register_edge'
      
      This clarifies the Kconfig dependency.
      
      Fixes: 4b48921a ("remoteproc: qcom: Use common SMD edge handler")
      Signed-off-by: default avatarArnd Bergmann <arnd@arndb.de>
      Signed-off-by: default avatarBjorn Andersson <bjorn.andersson@linaro.org>
      c3104aae
    • Chao Yu's avatar
      f2fs: combine nat_bits and free_nid_bitmap cache · 7041d5d2
      Chao Yu authored
      Both nat_bits cache and free_nid_bitmap cache provide same functionality
      as a intermediate cache between free nid cache and disk, but with
      different granularity of indicating free nid range, and different
      persistence policy. nat_bits cache provides better persistence ability,
      and free_nid_bitmap provides better granularity.
      
      In this patch we combine advantage of both caches, so finally policy of
      the intermediate cache would be:
      - init: load free nid status from nat_bits into free_nid_bitmap
      - lookup: scan free_nid_bitmap before load NAT blocks
      - update: update free_nid_bitmap in real-time
      - persistence: udpate and persist nat_bits in checkpoint
      
      This patch also resolves performance regression reported by lkp-robot.
      
      commit:
        4ac91242 ("f2fs: introduce free nid bitmap")
        d00030cf9cd0bb96fdccc41e33d3c91dcbb672ba ("f2fs: use __set{__clear}_bit_le")
        1382c0f3f9d3f936c8bc42ed1591cf7a593ef9f7 ("f2fs: combine nat_bits and free_nid_bitmap cache")
      
      4ac91242 d00030cf9cd0bb96fdccc41e33 1382c0f3f9d3f936c8bc42ed15
      ---------------- -------------------------- --------------------------
               %stddev     %change         %stddev     %change         %stddev
                   \          |                \          |                \
           77863 ±  0%      +2.1%      79485 ±  1%     +50.8%     117404 ±  0%  aim7.jobs-per-min
          231.63 ±  0%      -2.0%     227.01 ±  1%     -33.6%     153.80 ±  0%  aim7.time.elapsed_time
          231.63 ±  0%      -2.0%     227.01 ±  1%     -33.6%     153.80 ±  0%  aim7.time.elapsed_time.max
          896604 ±  0%      -0.8%     889221 ±  3%     -20.2%     715260 ±  1%  aim7.time.involuntary_context_switches
            2394 ±  1%      +4.6%       2503 ±  1%      +3.7%       2481 ±  2%  aim7.time.maximum_resident_set_size
            6240 ±  0%      -1.5%       6145 ±  1%     -14.1%       5360 ±  1%  aim7.time.system_time
         1111357 ±  3%      +1.9%    1132509 ±  2%      -6.2%    1041932 ±  2%  aim7.time.voluntary_context_switches
      ...
      Signed-off-by: default avatarChao Yu <yuchao0@huawei.com>
      Tested-by: default avatarXiaolong Ye <xiaolong.ye@intel.com>
      Signed-off-by: default avatarJaegeuk Kim <jaegeuk@kernel.org>
      7041d5d2
    • Chao Yu's avatar
      f2fs: skip scanning free nid bitmap of full NAT blocks · 586d1492
      Chao Yu authored
      This patch adds to account free nids for each NAT blocks, and while
      scanning all free nid bitmap, do check count and skip lookuping in
      full NAT block.
      Signed-off-by: default avatarChao Yu <yuchao0@huawei.com>
      Signed-off-by: default avatarJaegeuk Kim <jaegeuk@kernel.org>
      586d1492
    • Jaegeuk Kim's avatar
      f2fs: use __set{__clear}_bit_le · 23380b85
      Jaegeuk Kim authored
      This patch uses __set{__clear}_bit_le for highter speed.
      Reviewed-by: default avatarChao Yu <yuchao0@huawei.com>
      Signed-off-by: default avatarJaegeuk Kim <jaegeuk@kernel.org>
      23380b85