Messages in this thread | | | Date | Tue, 25 May 2021 15:42:20 +0200 | From | Jan Kara <> | Subject | Re: [PATCH] f2fs: avoid attaching SB_ACTIVE flag during mount/remount |
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On Tue 25-05-21 19:39:09, Chao Yu wrote: > Quoted from [1] > > "I do remember that I've added this code back then because otherwise > orphan cleanup was losing updates to quota files. But you're right > that now I don't see how that could be happening and it would be nice > if we could get rid of this hack" > > [1] https://lore.kernel.org/linux-ext4/99cce8ca-e4a0-7301-840f-2ace67c551f3@huawei.com/T/#m04990cfbc4f44592421736b504afcc346b2a7c00 > > Related fix in ext4 by > commit 72ffb49a7b62 ("ext4: do not set SB_ACTIVE in ext4_orphan_cleanup()"). > > f2fs has the same hack implementation in > - f2fs_recover_orphan_inodes() > - f2fs_recover_fsync_data() > - f2fs_disable_checkpoint() > > Let's get rid of this hack as well in f2fs. > > Cc: Zhang Yi <yi.zhang@huawei.com> > Cc: Jan Kara <jack@suse.cz> > Signed-off-by: Chao Yu <yuchao0@huawei.com>
Makes sense to me. You can add:
Acked-by: Jan Kara <jack@suse.cz>
Honza
> --- > fs/f2fs/checkpoint.c | 3 --- > fs/f2fs/recovery.c | 8 ++------ > fs/f2fs/super.c | 11 ++++------- > 3 files changed, 6 insertions(+), 16 deletions(-) > > diff --git a/fs/f2fs/checkpoint.c b/fs/f2fs/checkpoint.c > index 6c208108d69c..a578c7d13d81 100644 > --- a/fs/f2fs/checkpoint.c > +++ b/fs/f2fs/checkpoint.c > @@ -691,9 +691,6 @@ int f2fs_recover_orphan_inodes(struct f2fs_sb_info *sbi) > } > > #ifdef CONFIG_QUOTA > - /* Needed for iput() to work correctly and not trash data */ > - sbi->sb->s_flags |= SB_ACTIVE; > - > /* > * Turn on quotas which were not enabled for read-only mounts if > * filesystem has quota feature, so that they are updated correctly. > diff --git a/fs/f2fs/recovery.c b/fs/f2fs/recovery.c > index 4b2f7d1d5bf4..4cfe36fa41be 100644 > --- a/fs/f2fs/recovery.c > +++ b/fs/f2fs/recovery.c > @@ -782,8 +782,6 @@ int f2fs_recover_fsync_data(struct f2fs_sb_info *sbi, bool check_only) > } > > #ifdef CONFIG_QUOTA > - /* Needed for iput() to work correctly and not trash data */ > - sbi->sb->s_flags |= SB_ACTIVE; > /* Turn on quotas so that they are updated correctly */ > quota_enabled = f2fs_enable_quota_files(sbi, s_flags & SB_RDONLY); > #endif > @@ -811,10 +809,8 @@ int f2fs_recover_fsync_data(struct f2fs_sb_info *sbi, bool check_only) > err = recover_data(sbi, &inode_list, &tmp_inode_list, &dir_list); > if (!err) > f2fs_bug_on(sbi, !list_empty(&inode_list)); > - else { > - /* restore s_flags to let iput() trash data */ > - sbi->sb->s_flags = s_flags; > - } > + else > + f2fs_bug_on(sbi, sbi->sb->s_flags & SB_ACTIVE); > skip: > fix_curseg_write_pointer = !check_only || list_empty(&inode_list); > > diff --git a/fs/f2fs/super.c b/fs/f2fs/super.c > index 0a77808ebb8f..e7bd983fbddc 100644 > --- a/fs/f2fs/super.c > +++ b/fs/f2fs/super.c > @@ -1881,17 +1881,15 @@ static int f2fs_enable_quotas(struct super_block *sb); > > static int f2fs_disable_checkpoint(struct f2fs_sb_info *sbi) > { > - unsigned int s_flags = sbi->sb->s_flags; > struct cp_control cpc; > int err = 0; > int ret; > block_t unusable; > > - if (s_flags & SB_RDONLY) { > + if (sbi->sb->s_flags & SB_RDONLY) { > f2fs_err(sbi, "checkpoint=disable on readonly fs"); > return -EINVAL; > } > - sbi->sb->s_flags |= SB_ACTIVE; > > f2fs_update_time(sbi, DISABLE_TIME); > > @@ -1909,13 +1907,13 @@ static int f2fs_disable_checkpoint(struct f2fs_sb_info *sbi) > ret = sync_filesystem(sbi->sb); > if (ret || err) { > err = ret ? ret : err; > - goto restore_flag; > + goto out; > } > > unusable = f2fs_get_unusable_blocks(sbi); > if (f2fs_disable_cp_again(sbi, unusable)) { > err = -EAGAIN; > - goto restore_flag; > + goto out; > } > > down_write(&sbi->gc_lock); > @@ -1931,8 +1929,7 @@ static int f2fs_disable_checkpoint(struct f2fs_sb_info *sbi) > > out_unlock: > up_write(&sbi->gc_lock); > -restore_flag: > - sbi->sb->s_flags = s_flags; /* Restore SB_RDONLY status */ > +out: > return err; > } > > -- > 2.29.2 > -- Jan Kara <jack@suse.com> SUSE Labs, CR
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