From 0abd675e97e60d40e61d59532f8118b0e439034e Mon Sep 17 00:00:00 2001 From: Chao Yu Date: Sun, 9 Jul 2017 00:13:07 +0800 Subject: f2fs: support plain user/group quota 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: Chao Yu Signed-off-by: Jaegeuk Kim --- Documentation/filesystems/f2fs.txt | 2 ++ 1 file changed, 2 insertions(+) (limited to 'Documentation/filesystems') diff --git a/Documentation/filesystems/f2fs.txt b/Documentation/filesystems/f2fs.txt index 8b04a6359530..273ccb26885e 100644 --- a/Documentation/filesystems/f2fs.txt +++ b/Documentation/filesystems/f2fs.txt @@ -162,6 +162,8 @@ mode=%s Control block allocation mode which supports "adaptive" writes towards main area. io_bits=%u Set the bit size of write IO requests. It should be set with "mode=lfs". +usrquota Enable plain user disk quota accounting. +grpquota Enable plain group disk quota accounting. ================================================================================ DEBUGFS ENTRIES -- cgit