Signed-off-by: qixiaoyu1 <qixiao...@xiaomi.com> --- Documentation/ABI/testing/sysfs-fs-f2fs | 5 +++++ fs/f2fs/extent_cache.c | 11 +++++++---- fs/f2fs/f2fs.h | 1 + fs/f2fs/sysfs.c | 11 +++++++++++ 4 files changed, 24 insertions(+), 4 deletions(-)
diff --git a/Documentation/ABI/testing/sysfs-fs-f2fs b/Documentation/ABI/testing/sysfs-fs-f2fs index 9e3756625a81..11af7dbb6bc9 100644 --- a/Documentation/ABI/testing/sysfs-fs-f2fs +++ b/Documentation/ABI/testing/sysfs-fs-f2fs @@ -669,3 +669,8 @@ Contact: "Ping Xiong" <xiongpi...@xiaomi.com> Description: When DATA SEPARATION is on, it controls the age threshold to indicate the data blocks as warm. By default it was initialized as 2621440 blocks (equals to 10GB). + +What: /sys/fs/f2fs/<disk>/last_age_weight +Date: January 2023 +Contact: "Ping Xiong" <xiongpi...@xiaomi.com> +Description: When DATA SEPARATION is on, it controls the weight of last data block age. diff --git a/fs/f2fs/extent_cache.c b/fs/f2fs/extent_cache.c index 93a1ab186517..47222a899385 100644 --- a/fs/f2fs/extent_cache.c +++ b/fs/f2fs/extent_cache.c @@ -871,10 +871,12 @@ void f2fs_update_read_extent_tree_range_compressed(struct inode *inode, } #endif -static unsigned long long __calculate_block_age(unsigned long long new, - unsigned long long old) +static unsigned long long __calculate_block_age(struct f2fs_sb_info *sbi, + unsigned long long new, unsigned long long old) { - return new - new / 100 * LAST_AGE_WEIGHT + old / 100 * LAST_AGE_WEIGHT; + unsigned int weight = sbi->last_age_weight; + + return new - new / 100 * weight + old / 100 * weight; } /* This returns a new age and allocated blocks in ei */ @@ -906,7 +908,7 @@ static int __get_new_block_age(struct inode *inode, struct extent_info *ei, cur_age = ULLONG_MAX - tei.last_blocks + cur_blocks; if (tei.age) - ei->age = __calculate_block_age(cur_age, tei.age); + ei->age = __calculate_block_age(sbi, cur_age, tei.age); else ei->age = cur_age; ei->last_blocks = cur_blocks; @@ -1222,6 +1224,7 @@ void f2fs_init_extent_cache_info(struct f2fs_sb_info *sbi) atomic64_set(&sbi->allocated_data_blocks, 0); sbi->hot_data_age_threshold = DEF_HOT_DATA_AGE_THRESHOLD; sbi->warm_data_age_threshold = DEF_WARM_DATA_AGE_THRESHOLD; + sbi->last_age_weight = LAST_AGE_WEIGHT; } int __init f2fs_create_extent_cache(void) diff --git a/fs/f2fs/f2fs.h b/fs/f2fs/f2fs.h index e8953c3dc81a..c3609cbc28c7 100644 --- a/fs/f2fs/f2fs.h +++ b/fs/f2fs/f2fs.h @@ -1679,6 +1679,7 @@ struct f2fs_sb_info { /* The threshold used for hot and warm data seperation*/ unsigned int hot_data_age_threshold; unsigned int warm_data_age_threshold; + unsigned int last_age_weight; /* basic filesystem units */ unsigned int log_sectors_per_block; /* log2 sectors per block */ diff --git a/fs/f2fs/sysfs.c b/fs/f2fs/sysfs.c index 83a366f3ee80..a70cf674d8e7 100644 --- a/fs/f2fs/sysfs.c +++ b/fs/f2fs/sysfs.c @@ -686,6 +686,15 @@ static ssize_t __sbi_store(struct f2fs_attr *a, return count; } + if (!strcmp(a->attr.name, "last_age_weight")) { + if (t <= 0 || t >= 100) + return -EINVAL; + if (t == *ui) + return count; + *ui = (unsigned int)t; + return count; + } + *ui = (unsigned int)t; return count; @@ -944,6 +953,7 @@ F2FS_RW_ATTR(F2FS_SBI, f2fs_sb_info, revoked_atomic_block, revoked_atomic_block) /* For block age extent cache */ F2FS_RW_ATTR(F2FS_SBI, f2fs_sb_info, hot_data_age_threshold, hot_data_age_threshold); F2FS_RW_ATTR(F2FS_SBI, f2fs_sb_info, warm_data_age_threshold, warm_data_age_threshold); +F2FS_RW_ATTR(F2FS_SBI, f2fs_sb_info, last_age_weight, last_age_weight); #define ATTR_LIST(name) (&f2fs_attr_##name.attr) static struct attribute *f2fs_attrs[] = { @@ -1042,6 +1052,7 @@ static struct attribute *f2fs_attrs[] = { ATTR_LIST(revoked_atomic_block), ATTR_LIST(hot_data_age_threshold), ATTR_LIST(warm_data_age_threshold), + ATTR_LIST(last_age_weight), NULL, }; ATTRIBUTE_GROUPS(f2fs); -- 2.36.1 _______________________________________________ Linux-f2fs-devel mailing list Linux-f2fs-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/linux-f2fs-devel