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| author |  Chao Yu <chao@kernel.org>
| 2021-08-20 18:54:59 +0800 |
|---|---|---|
| committer |  Jaegeuk Kim <jaegeuk@kernel.org>
| 2021-08-23 10:25:52 -0700 |
| commit | 94c821fb286b545d37549ff30a0c341e066f0d6c (patch) | |
| tree | d850804f7a33320cb19fa27dacc1d191e07ab617 /fs/f2fs/checkpoint.c | |
| parent | f2fs: introduce periodic iostat io latency traces (diff) | |
| download | linux-94c821fb286b545d37549ff30a0c341e066f0d6c.tar.gz linux-94c821fb286b545d37549ff30a0c341e066f0d6c.tar.bz2 linux-94c821fb286b545d37549ff30a0c341e066f0d6c.zip | |
f2fs: rebuild nat_bits during umount
If all free_nat_bitmap are available, we can rebuild nat_bits from
free_nat_bitmap entirely during umount, let's make another chance
to reenable nat_bits for image.
Signed-off-by: Chao Yu <chao@kernel.org>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
Diffstat (limited to 'fs/f2fs/checkpoint.c')
| -rw-r--r-- | fs/f2fs/checkpoint.c | 21 |
1 files changed, 15 insertions, 6 deletions
diff --git a/fs/f2fs/checkpoint.c b/fs/f2fs/checkpoint.c index 3962cfeb4a57..83e9bc0f91ff 100644 --- a/fs/f2fs/checkpoint.c +++ b/fs/f2fs/checkpoint.c @@ -1303,12 +1303,20 @@ static void update_ckpt_flags(struct f2fs_sb_info *sbi, struct cp_control *cpc) struct f2fs_checkpoint *ckpt = F2FS_CKPT(sbi); unsigned long flags; - spin_lock_irqsave(&sbi->cp_lock, flags); + if (cpc->reason & CP_UMOUNT) { + if (le32_to_cpu(ckpt->cp_pack_total_block_count) > + sbi->blocks_per_seg - NM_I(sbi)->nat_bits_blocks) { + clear_ckpt_flags(sbi, CP_NAT_BITS_FLAG); + f2fs_notice(sbi, "Disable nat_bits due to no space"); + } else if (!is_set_ckpt_flags(sbi, CP_NAT_BITS_FLAG) && + f2fs_nat_bitmap_enabled(sbi)) { + f2fs_enable_nat_bits(sbi); + set_ckpt_flags(sbi, CP_NAT_BITS_FLAG); + f2fs_notice(sbi, "Rebuild and enable nat_bits"); + } + } - if ((cpc->reason & CP_UMOUNT) && - le32_to_cpu(ckpt->cp_pack_total_block_count) > - sbi->blocks_per_seg - NM_I(sbi)->nat_bits_blocks) - disable_nat_bits(sbi, false); + spin_lock_irqsave(&sbi->cp_lock, flags); if (cpc->reason & CP_TRIMMED) __set_ckpt_flags(ckpt, CP_TRIMMED_FLAG); @@ -1494,7 +1502,8 @@ static int do_checkpoint(struct f2fs_sb_info *sbi, struct cp_control *cpc) start_blk = __start_cp_next_addr(sbi); /* write nat bits */ - if (enabled_nat_bits(sbi, cpc)) { + if ((cpc->reason & CP_UMOUNT) && + is_set_ckpt_flags(sbi, CP_NAT_BITS_FLAG)) { __u64 cp_ver = cur_cp_version(ckpt); block_t blk; |