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| author | Chao Yu <yuchao0@huawei.com> | 2017-07-08 18:13:07 +0200 |
|---|---|---|
| committer | Jaegeuk Kim <jaegeuk@kernel.org> | 2017-07-09 08:12:27 +0200 |
| commit | 0abd675e97e60d40e61d59532f8118b0e439034e (patch) | |
| tree | 4aac496af2e665936486dd067b71a0087e091685 /Documentation/filesystems/f2fs.txt | |
| parent | f2fs: avoid deadlock caused by lock order of page and lock_op (diff) | |
| download | linux-0abd675e97e60d40e61d59532f8118b0e439034e.tar.xz linux-0abd675e97e60d40e61d59532f8118b0e439034e.zip | |
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 <yuchao0@huawei.com>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
Diffstat (limited to 'Documentation/filesystems/f2fs.txt')
| -rw-r--r-- | Documentation/filesystems/f2fs.txt | 2 |
1 files changed, 2 insertions, 0 deletions
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 |