• Chao Yu's avatar
    f2fs: support plain user/group quota · 0abd675e
    Chao Yu authored
    This patch adds to support plain user/group quota.
    
    Change Note by Jaegeuk Kim.
    
    - Use f2fs page cache for quota files in order to consider garbage collection.
      so, quota files are not tolerable for sudden power-cuts, so user needs to do
      quotacheck.
    
    - setattr() calls dquot_transfer which will transfer inode->i_blocks.
      We can't reclaim that during f2fs_evict_inode(). So, we need to count
      node blocks as well in order to match i_blocks with dquot's space.
    
      Note that, Chao wrote a patch to count inode->i_blocks without inode block.
      (f2fs: don't count inode block in in-memory inode.i_blocks)
    
    - in f2fs_remount, we need to make RW in prior to dquot_resume.
    
    - handle fault_injection case during f2fs_quota_off_umount
    
    - TODO: Project quota
    Signed-off-by: default avatarChao Yu <yuchao0@huawei.com>
    Signed-off-by: default avatarJaegeuk Kim <jaegeuk@kernel.org>
    0abd675e
super.c 58.7 KB