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Signed-off-by: Yangtao Li --- Documentation/ABI/testing/sysfs-fs-f2fs | 25 ++++++------ fs/f2fs/segment.c | 2 +- fs/f2fs/segment.h | 37 ++--------------- fs/f2fs/super.c | 2 +- fs/f2fs/sysfs.c | 2 +- include/uapi/linux/f2fs.h | 54 +++++++++++++++++++++++++ 6 files changed, 73 insertions(+), 49 deletions(-) diff --git a/Documentation/ABI/testing/sysfs-fs-f2fs b/Documentation/ABI/testing/sysfs-fs-f2fs index 64b15a28fe30..d05ad2bc56d1 100644 --- a/Documentation/ABI/testing/sysfs-fs-f2fs +++ b/Documentation/ABI/testing/sysfs-fs-f2fs @@ -49,18 +49,19 @@ Contact: "Jaegeuk Kim" Description: Controls the in-place-update policy. updates in f2fs. User can set: - ==== ================= - 0x01 F2FS_IPU_FORCE - 0x02 F2FS_IPU_SSR - 0x04 F2FS_IPU_UTIL - 0x08 F2FS_IPU_SSR_UTIL - 0x10 F2FS_IPU_FSYNC - 0x20 F2FS_IPU_ASYNC - 0x40 F2FS_IPU_NOCACHE - 0x80 F2FS_IPU_HONOR_OPU_WRITE - ==== ================= - - Refer segment.h for details. + ==== ============================ + 0x00 SET_F2FS_IPU_DISABLE + 0x01 SET_F2FS_IPU_FORCE + 0x02 SET_F2FS_IPU_SSR + 0x04 SET_F2FS_IPU_UTIL + 0x08 SET_F2FS_IPU_SSR_UTIL + 0x10 SET_F2FS_IPU_FSYNC + 0x20 SET_F2FS_IPU_ASYNC + 0x40 SET_F2FS_IPU_NOCACHE + 0x80 SET_F2FS_IPU_HONOR_OPU_WRITE + ==== ============================ + + Refer include/uapi/linux/f2fs.h for details. What: /sys/fs/f2fs//min_ipu_util Date: November 2013 diff --git a/fs/f2fs/segment.c b/fs/f2fs/segment.c index a007f5084e84..c56f5a80d3a6 100644 --- a/fs/f2fs/segment.c +++ b/fs/f2fs/segment.c @@ -5138,7 +5138,7 @@ int f2fs_build_segment_manager(struct f2fs_sb_info *sbi) sm_info->rec_prefree_segments = DEF_MAX_RECLAIM_PREFREE_SEGMENTS; if (!f2fs_lfs_mode(sbi)) - sm_info->ipu_policy = BIT(F2FS_IPU_FSYNC); + sm_info->ipu_policy = SET_F2FS_IPU_FSYNC; sm_info->min_ipu_util = DEF_MIN_IPU_UTIL; sm_info->min_fsync_blocks = DEF_MIN_FSYNC_BLOCKS; sm_info->min_seq_blocks = sbi->blocks_per_seg; diff --git a/fs/f2fs/segment.h b/fs/f2fs/segment.h index 50c63155ad56..c064ddffe91b 100644 --- a/fs/f2fs/segment.h +++ b/fs/f2fs/segment.h @@ -7,6 +7,7 @@ */ #include #include +#include /* constant macro */ #define NULL_SEGNO ((unsigned int)(~0)) @@ -646,51 +647,19 @@ static inline int utilization(struct f2fs_sb_info *sbi) sbi->user_block_count); } -/* - * Sometimes f2fs may be better to drop out-of-place update policy. - * And, users can control the policy through sysfs entries. - * There are five policies with triggering conditions as follows. - * F2FS_IPU_FORCE - all the time, - * F2FS_IPU_SSR - if SSR mode is activated, - * F2FS_IPU_UTIL - if FS utilization is over threashold, - * F2FS_IPU_SSR_UTIL - if SSR mode is activated and FS utilization is over - * threashold, - * F2FS_IPU_FSYNC - activated in fsync path only for high performance flash - * storages. IPU will be triggered only if the # of dirty - * pages over min_fsync_blocks. (=default option) - * F2FS_IPU_ASYNC - do IPU given by asynchronous write requests. - * F2FS_IPU_NOCACHE - disable IPU bio cache. - * F2FS_IPU_HONOR_OPU_WRITE - use OPU write prior to IPU write if inode has - * FI_OPU_WRITE flag. - * F2FS_IPU_DISABLE - disable IPU. (=default option in LFS mode) - */ #define DEF_MIN_IPU_UTIL 70 #define DEF_MIN_FSYNC_BLOCKS 8 #define DEF_MIN_HOT_BLOCKS 16 #define SMALL_VOLUME_SEGMENTS (16 * 512) /* 16GB */ -#define F2FS_IPU_DISABLE 0 - -/* Modification on enum should be synchronized with ipu_mode_names array */ -enum { - F2FS_IPU_FORCE, - F2FS_IPU_SSR, - F2FS_IPU_UTIL, - F2FS_IPU_SSR_UTIL, - F2FS_IPU_FSYNC, - F2FS_IPU_ASYNC, - F2FS_IPU_NOCACHE, - F2FS_IPU_HONOR_OPU_WRITE, - F2FS_IPU_MAX, -}; - #define F2FS_IPU_POLICY(name) \ static inline int IS_##name(struct f2fs_sb_info *sbi) \ { \ - return SM_I(sbi)->ipu_policy & BIT(name); \ + return TEST_##name(SM_I(sbi)->ipu_policy); \ } +F2FS_IPU_POLICY(F2FS_IPU_DISABLE); F2FS_IPU_POLICY(F2FS_IPU_FORCE); F2FS_IPU_POLICY(F2FS_IPU_SSR); F2FS_IPU_POLICY(F2FS_IPU_UTIL); diff --git a/fs/f2fs/super.c b/fs/f2fs/super.c index ebc76683f05d..b19085fa335a 100644 --- a/fs/f2fs/super.c +++ b/fs/f2fs/super.c @@ -4085,7 +4085,7 @@ static void f2fs_tuning_parameters(struct f2fs_sb_info *sbi) if (f2fs_block_unit_discard(sbi)) SM_I(sbi)->dcc_info->discard_granularity = MIN_DISCARD_GRANULARITY; if (F2FS_OPTION(sbi).fs_mode != FS_MODE_LFS) - SM_I(sbi)->ipu_policy = BIT(F2FS_IPU_FORCE) | BIT(F2FS_IPU_HONOR_OPU_WRITE); + SM_I(sbi)->ipu_policy = SET_F2FS_IPU_FORCE | SET_F2FS_IPU_HONOR_OPU_WRITE; } sbi->readdir_ra = true; diff --git a/fs/f2fs/sysfs.c b/fs/f2fs/sysfs.c index aaf5d8650518..375ace5f330d 100644 --- a/fs/f2fs/sysfs.c +++ b/fs/f2fs/sysfs.c @@ -165,7 +165,7 @@ static ssize_t ipu_mode_show(struct f2fs_attr *a, { int len = 0, i = 0; - if (SM_I(sbi)->ipu_policy == F2FS_IPU_DISABLE) + if (IS_F2FS_IPU_DISABLE(sbi)) return sysfs_emit(buf, "DISABLE\n"); for_each_set_bit(i, &SM_I(sbi)->ipu_policy, F2FS_IPU_MAX) diff --git a/include/uapi/linux/f2fs.h b/include/uapi/linux/f2fs.h index 955d440be104..1b672fb6af91 100644 --- a/include/uapi/linux/f2fs.h +++ b/include/uapi/linux/f2fs.h @@ -5,6 +5,60 @@ #include #include +/* + * For /sys/fs/f2fs//ipu_policy entry + * + * Sometimes f2fs may be better to drop out-of-place update policy. + * And, users can control the policy through sysfs entries. + * There are five policies with triggering conditions as follows. + * F2FS_IPU_FORCE - all the time, + * F2FS_IPU_SSR - if SSR mode is activated, + * F2FS_IPU_UTIL - if FS utilization is over threashold, + * F2FS_IPU_SSR_UTIL - if SSR mode is activated and FS utilization is over + * threashold, + * F2FS_IPU_FSYNC - activated in fsync path only for high performance flash + * storages. IPU will be triggered only if the # of dirty + * pages over min_fsync_blocks. (=default option) + * F2FS_IPU_ASYNC - do IPU given by asynchronous write requests. + * F2FS_IPU_NOCACHE - disable IPU bio cache. + * F2FS_IPU_HONOR_OPU_WRITE - use OPU write prior to IPU write if inode has + * FI_OPU_WRITE flag. + * F2FS_IPU_DISABLE - disable IPU. (=default option in LFS mode) + */ +#define F2FS_IPU_DISABLE 0 +/* Modification on enum should be synchronized with ipu_mode_names array */ +enum { + F2FS_IPU_FORCE, + F2FS_IPU_SSR, + F2FS_IPU_UTIL, + F2FS_IPU_SSR_UTIL, + F2FS_IPU_FSYNC, + F2FS_IPU_ASYNC, + F2FS_IPU_NOCACHE, + F2FS_IPU_HONOR_OPU_WRITE, + F2FS_IPU_MAX, +}; + +#define SET_F2FS_IPU_DISABLE F2FS_IPU_DISABLE +#define SET_F2FS_IPU_FORCE BIT(F2FS_IPU_FORCE) +#define SET_F2FS_IPU_SSR BIT(F2FS_IPU_SSR) +#define SET_F2FS_IPU_UTIL BIT(F2FS_IPU_UTIL) +#define SET_F2FS_IPU_SSR_UTIL BIT(F2FS_IPU_SSR_UTIL) +#define SET_F2FS_IPU_FSYNC BIT(F2FS_IPU_FSYNC) +#define SET_F2FS_IPU_ASYNC BIT(F2FS_IPU_ASYNC) +#define SET_F2FS_IPU_NOCACHE BIT(F2FS_IPU_NOCACHE) +#define SET_F2FS_IPU_HONOR_OPU_WRITE BIT(F2FS_IPU_HONOR_OPU_WRITE) + +#define TEST_F2FS_IPU_DISABLE(val) ((val) == F2FS_IPU_DISABLE) +#define TEST_F2FS_IPU_FORCE(val) ((val) & BIT(F2FS_IPU_FORCE)) +#define TEST_F2FS_IPU_SSR(val) ((val) & BIT(F2FS_IPU_SSR)) +#define TEST_F2FS_IPU_UTIL(val) ((val) & BIT(F2FS_IPU_UTIL)) +#define TEST_F2FS_IPU_SSR_UTIL(val) ((val) & BIT(F2FS_IPU_SSR_UTIL)) +#define TEST_F2FS_IPU_FSYNC(val) ((val) & BIT(F2FS_IPU_FSYNC)) +#define TEST_F2FS_IPU_ASYNC(val) ((val) & BIT(F2FS_IPU_ASYNC)) +#define TEST_F2FS_IPU_NOCACHE(val) ((val) & BIT(F2FS_IPU_NOCACHE)) +#define TEST_F2FS_IPU_HONOR_OPU_WRITE(val) ((val) & BIT(F2FS_IPU_HONOR_OPU_WRITE)) + /* * f2fs-specific ioctl commands */ -- 2.25.1