diff options
| -rw-r--r-- | Documentation/ABI/testing/sysfs-fs-f2fs | 14 | ||||
| -rw-r--r-- | fs/f2fs/f2fs.h | 8 | ||||
| -rw-r--r-- | fs/f2fs/segment.c | 25 | ||||
| -rw-r--r-- | fs/f2fs/super.c | 1 | ||||
| -rw-r--r-- | fs/f2fs/sysfs.c | 11 |
5 files changed, 58 insertions, 1 deletions
diff --git a/Documentation/ABI/testing/sysfs-fs-f2fs b/Documentation/ABI/testing/sysfs-fs-f2fs index cad6c3dc1f9c..3500920ab7ce 100644 --- a/Documentation/ABI/testing/sysfs-fs-f2fs +++ b/Documentation/ABI/testing/sysfs-fs-f2fs @@ -763,3 +763,17 @@ Date: November 2023 Contact: "Chao Yu" <chao@kernel.org> Description: It controls to enable/disable IO aware feature for background discard. By default, the value is 1 which indicates IO aware is on. + +What: /sys/fs/f2fs/<disk>/blkzone_alloc_policy +Date: July 2024 +Contact: "Yuanhong Liao" <liaoyuanhong@vivo.com> +Description: The zone UFS we are currently using consists of two parts: + conventional zones and sequential zones. It can be used to control which part + to prioritize for writes, with a default value of 0. + + ======================== ========================================= + value description + blkzone_alloc_policy = 0 Prioritize writing to sequential zones + blkzone_alloc_policy = 1 Only allow writing to sequential zones + blkzone_alloc_policy = 2 Prioritize writing to conventional zones + ======================== ========================================= diff --git a/fs/f2fs/f2fs.h b/fs/f2fs/f2fs.h index ee030a0b093f..ebcb059bd702 100644 --- a/fs/f2fs/f2fs.h +++ b/fs/f2fs/f2fs.h @@ -134,6 +134,12 @@ typedef u32 nid_t; #define COMPRESS_EXT_NUM 16 +enum blkzone_allocation_policy { + BLKZONE_ALLOC_PRIOR_SEQ, /* Prioritize writing to sequential zones */ + BLKZONE_ALLOC_ONLY_SEQ, /* Only allow writing to sequential zones */ + BLKZONE_ALLOC_PRIOR_CONV, /* Prioritize writing to conventional zones */ +}; + /* * An implementation of an rwsem that is explicitly unfair to readers. This * prevents priority inversion when a low-priority reader acquires the read lock @@ -1559,6 +1565,8 @@ struct f2fs_sb_info { #ifdef CONFIG_BLK_DEV_ZONED unsigned int blocks_per_blkz; /* F2FS blocks per zone */ unsigned int max_open_zones; /* max open zone resources of the zoned device */ + /* For adjust the priority writing position of data in zone UFS */ + unsigned int blkzone_alloc_policy; #endif /* for node-related operations */ diff --git a/fs/f2fs/segment.c b/fs/f2fs/segment.c index 78c3198a6308..3aee71c9f3c6 100644 --- a/fs/f2fs/segment.c +++ b/fs/f2fs/segment.c @@ -2686,17 +2686,40 @@ static int get_new_segment(struct f2fs_sb_info *sbi, goto got_it; } +#ifdef CONFIG_BLK_DEV_ZONED /* * If we format f2fs on zoned storage, let's try to get pinned sections * from beginning of the storage, which should be a conventional one. */ if (f2fs_sb_has_blkzoned(sbi)) { - segno = pinning ? 0 : max(first_zoned_segno(sbi), *newseg); + /* Prioritize writing to conventional zones */ + if (sbi->blkzone_alloc_policy == BLKZONE_ALLOC_PRIOR_CONV || pinning) + segno = 0; + else + segno = max(first_zoned_segno(sbi), *newseg); hint = GET_SEC_FROM_SEG(sbi, segno); } +#endif find_other_zone: secno = find_next_zero_bit(free_i->free_secmap, MAIN_SECS(sbi), hint); + +#ifdef CONFIG_BLK_DEV_ZONED + if (secno >= MAIN_SECS(sbi) && f2fs_sb_has_blkzoned(sbi)) { + /* Write only to sequential zones */ + if (sbi->blkzone_alloc_policy == BLKZONE_ALLOC_ONLY_SEQ) { + hint = GET_SEC_FROM_SEG(sbi, first_zoned_segno(sbi)); + secno = find_next_zero_bit(free_i->free_secmap, MAIN_SECS(sbi), hint); + } else + secno = find_first_zero_bit(free_i->free_secmap, + MAIN_SECS(sbi)); + if (secno >= MAIN_SECS(sbi)) { + ret = -ENOSPC; + goto out_unlock; + } + } +#endif + if (secno >= MAIN_SECS(sbi)) { secno = find_first_zero_bit(free_i->free_secmap, MAIN_SECS(sbi)); diff --git a/fs/f2fs/super.c b/fs/f2fs/super.c index 4d8f38ca6fcd..aa23e4cfd89e 100644 --- a/fs/f2fs/super.c +++ b/fs/f2fs/super.c @@ -4219,6 +4219,7 @@ static int f2fs_scan_devices(struct f2fs_sb_info *sbi) sbi->aligned_blksize = true; #ifdef CONFIG_BLK_DEV_ZONED sbi->max_open_zones = UINT_MAX; + sbi->blkzone_alloc_policy = BLKZONE_ALLOC_PRIOR_SEQ; #endif for (i = 0; i < max_devices; i++) { diff --git a/fs/f2fs/sysfs.c b/fs/f2fs/sysfs.c index fee7ee45ceaa..63ff2d1647eb 100644 --- a/fs/f2fs/sysfs.c +++ b/fs/f2fs/sysfs.c @@ -627,6 +627,15 @@ out: } #endif +#ifdef CONFIG_BLK_DEV_ZONED + if (!strcmp(a->attr.name, "blkzone_alloc_policy")) { + if (t < BLKZONE_ALLOC_PRIOR_SEQ || t > BLKZONE_ALLOC_PRIOR_CONV) + return -EINVAL; + sbi->blkzone_alloc_policy = t; + return count; + } +#endif + #ifdef CONFIG_F2FS_FS_COMPRESSION if (!strcmp(a->attr.name, "compr_written_block") || !strcmp(a->attr.name, "compr_saved_block")) { @@ -1033,6 +1042,7 @@ F2FS_SBI_GENERAL_RW_ATTR(warm_data_age_threshold); F2FS_SBI_GENERAL_RW_ATTR(last_age_weight); #ifdef CONFIG_BLK_DEV_ZONED F2FS_SBI_GENERAL_RO_ATTR(unusable_blocks_per_sec); +F2FS_SBI_GENERAL_RW_ATTR(blkzone_alloc_policy); #endif /* STAT_INFO ATTR */ @@ -1187,6 +1197,7 @@ static struct attribute *f2fs_attrs[] = { #endif #ifdef CONFIG_BLK_DEV_ZONED ATTR_LIST(unusable_blocks_per_sec), + ATTR_LIST(blkzone_alloc_policy), #endif #ifdef CONFIG_F2FS_FS_COMPRESSION ATTR_LIST(compr_written_block), |