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>
diff --git a/fs/f2fs/node.c b/fs/f2fs/node.c
index de168e3..d53fe62 100644
--- a/fs/f2fs/node.c
+++ b/fs/f2fs/node.c
@@ -1040,10 +1040,9 @@
if (!page)
return ERR_PTR(-ENOMEM);
- if (unlikely(!inc_valid_node_count(sbi, dn->inode, !ofs))) {
- err = -ENOSPC;
+ if (unlikely((err = inc_valid_node_count(sbi, dn->inode, !ofs))))
goto fail;
- }
+
#ifdef CONFIG_F2FS_CHECK_FS
get_node_info(sbi, dn->nid, &new_ni);
f2fs_bug_on(sbi, new_ni.blk_addr != NULL_ADDR);
@@ -2210,7 +2209,7 @@
/* 2: update xattr nid in inode */
remove_free_nid(sbi, new_xnid);
f2fs_i_xnid_write(inode, new_xnid);
- if (unlikely(!inc_valid_node_count(sbi, inode, false)))
+ if (unlikely(inc_valid_node_count(sbi, inode, false)))
f2fs_bug_on(sbi, 1);
update_inode_page(inode);
@@ -2268,7 +2267,7 @@
new_ni = old_ni;
new_ni.ino = ino;
- if (unlikely(!inc_valid_node_count(sbi, NULL, true)))
+ if (unlikely(inc_valid_node_count(sbi, NULL, true)))
WARN_ON(1);
set_node_addr(sbi, &new_ni, NEW_ADDR, false);
inc_valid_inode_count(sbi);