f2fs: Add a new CP flag to help fsck fix resize SPO issues
[ Upstream commit c84ef3c5e65ccf99a7a91a4d731ebb5d6331a178 ] Add and set a new CP flag CP_RESIZEFS_FLAG during online resize FS to help fsck fix the metadata mismatch that may happen due to SPO during resize, where SB got updated but CP data couldn't be written yet. fsck errors - Info: CKPT version = 6ed7bccb Wrong user_block_count(2233856) [f2fs_do_mount:3365] Checkpoint is polluted Signed-off-by: Sahitya Tummala <stummala@codeaurora.org> Reviewed-by: Chao Yu <yuchao0@huawei.com> Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org> Signed-off-by: Sasha Levin <sashal@kernel.org>
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@ -1301,10 +1301,14 @@ static void update_ckpt_flags(struct f2fs_sb_info *sbi, struct cp_control *cpc)
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else
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__clear_ckpt_flags(ckpt, CP_ORPHAN_PRESENT_FLAG);
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if (is_sbi_flag_set(sbi, SBI_NEED_FSCK) ||
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is_sbi_flag_set(sbi, SBI_IS_RESIZEFS))
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if (is_sbi_flag_set(sbi, SBI_NEED_FSCK))
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__set_ckpt_flags(ckpt, CP_FSCK_FLAG);
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if (is_sbi_flag_set(sbi, SBI_IS_RESIZEFS))
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__set_ckpt_flags(ckpt, CP_RESIZEFS_FLAG);
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else
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__clear_ckpt_flags(ckpt, CP_RESIZEFS_FLAG);
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if (is_sbi_flag_set(sbi, SBI_CP_DISABLED))
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__set_ckpt_flags(ckpt, CP_DISABLED_FLAG);
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else
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@ -124,6 +124,7 @@ struct f2fs_super_block {
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/*
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* For checkpoint
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*/
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#define CP_RESIZEFS_FLAG 0x00004000
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#define CP_DISABLED_QUICK_FLAG 0x00002000
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#define CP_DISABLED_FLAG 0x00001000
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#define CP_QUOTA_NEED_FSCK_FLAG 0x00000800
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