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mkfs.f2fs: update allocation policy for ro feature

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Update allocation policy for ro feature:
- hot_data: allocating blocks by LBA ascending order
- hot_node: allocating blocks by LBA descending order

Signed-off-by: Chao Yu <chao@kernel.org>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
This commit is contained in:
Chao Yu 2022-10-06 23:16:56 +08:00 committed by sunshenshen
parent 3a80a7e962
commit 0bed51f3ad
3 changed files with 24 additions and 3 deletions
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8
fsck/mount.c
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@ -2817,6 +2817,14 @@ static void move_one_curseg_info(struct f2fs_sb_info *sbi, u64 from, int left,
if ((get_sb(feature) & cpu_to_le32(F2FS_FEATURE_RO))) {
if (i != CURSEG_HOT_DATA && i != CURSEG_HOT_NODE)
return;
if (i == CURSEG_HOT_DATA) {
left = 0;
from = SM_I(sbi)->main_blkaddr;
} else {
left = 1;
from = __end_block_addr(sbi);
}
goto bypass_ssa;
}

15
fsck/segment.c
View File

@ -28,6 +28,7 @@ int reserve_new_block(struct f2fs_sb_info *sbi, block_t *to,
u64 blkaddr, offset;
u64 old_blkaddr = *to;
bool is_node = IS_NODESEG(type);
int left = 0;
if (old_blkaddr == NULL_ADDR) {
if (c.func == FSCK) {
@ -56,7 +57,19 @@ int reserve_new_block(struct f2fs_sb_info *sbi, block_t *to,
blkaddr = SM_I(sbi)->main_blkaddr;
if (find_next_free_block(sbi, &blkaddr, 0, type, false)) {
if (sbi->raw_super->feature & cpu_to_le32(F2FS_FEATURE_RO)) {
if (IS_NODESEG(type)) {
type = CURSEG_HOT_NODE;
blkaddr = __end_block_addr(sbi);
left = 1;
} else if (IS_DATASEG(type)) {
type = CURSEG_HOT_DATA;
blkaddr = SM_I(sbi)->main_blkaddr;
left = 0;
}
}
if (find_next_free_block(sbi, &blkaddr, left, type, false)) {
ERR_MSG("Can't find free block");
ASSERT(0);
}

4
mkfs/f2fs_format.c
View File

@ -546,10 +546,10 @@ static int f2fs_prepare_super_block(void)
}
if (c.feature & cpu_to_le32(F2FS_FEATURE_RO)) {
c.cur_seg[CURSEG_HOT_NODE] = 0;
c.cur_seg[CURSEG_HOT_NODE] = last_section(last_zone(total_zones));
c.cur_seg[CURSEG_WARM_NODE] = 0;
c.cur_seg[CURSEG_COLD_NODE] = 0;
c.cur_seg[CURSEG_HOT_DATA] = 1;
c.cur_seg[CURSEG_HOT_DATA] = 0;
c.cur_seg[CURSEG_COLD_DATA] = 0;
c.cur_seg[CURSEG_WARM_DATA] = 0;
} else if (c.heap) {