kernel_optimize_test/fs/f2fs
Chengguang Xu 909110c060 f2fs: choose hardlimit when softlimit is larger than hardlimit in f2fs_statfs_project()
Setting softlimit larger than hardlimit seems meaningless
for disk quota but currently it is allowed. In this case,
there may be a bit of comfusion for users when they run
df comamnd to directory which has project quota.

For example, we set 20M softlimit and 10M hardlimit of
block usage limit for project quota of test_dir(project id 123).

[root@hades f2fs]# repquota -P -a
*** Report for project quotas on device /dev/nvme0n1p8
Block grace time: 7days; Inode grace time: 7days
Block limits File limits
Project used soft hard grace used soft hard grace
----------------------------------------------------------------------
0 -- 4 0 0 1 0 0
123 +- 10248 20480 10240 2 0 0

The result of df command as below:

[root@hades f2fs]# df -h /mnt/f2fs/test
Filesystem Size Used Avail Use% Mounted on
/dev/nvme0n1p8 20M 11M 10M 51% /mnt/f2fs

Even though it looks like there is another 10M free space to use,
if we write new data to diretory test(inherit project id),
the write will fail with errno(-EDQUOT).

After this patch, the df result looks like below.

[root@hades f2fs]# df -h /mnt/f2fs/test
Filesystem Size Used Avail Use% Mounted on
/dev/nvme0n1p8 10M 10M 0 100% /mnt/f2fs

Signed-off-by: Chengguang Xu <cgxu519@mykernel.net>
Reviewed-by: Chao Yu <yuchao0@huawei.com>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
2019-11-25 10:01:12 -08:00
..
acl.c f2fs: Replace spaces with tab 2019-05-08 21:23:11 -07:00
acl.h f2fs: add SPDX license identifiers 2018-09-12 13:07:10 -07:00
checkpoint.c f2fs: show f2fs instance in printk_ratelimited 2019-11-19 14:41:21 -08:00
data.c f2fs: show f2fs instance in printk_ratelimited 2019-11-19 14:41:21 -08:00
debug.c fs: f2fs: Remove unnecessary checks of SM_I(sbi) in update_general_status() 2019-08-23 07:57:12 -07:00
dir.c f2fs: show f2fs instance in printk_ratelimited 2019-11-19 14:41:21 -08:00
extent_cache.c f2fs: introduce f2fs_<level> macros to wrap f2fs_printk() 2019-07-02 15:40:40 -07:00
f2fs.h f2fs: Fix deadlock in f2fs_gc() context during atomic files handling 2019-11-19 14:41:21 -08:00
file.c f2fs: Fix deadlock in f2fs_gc() context during atomic files handling 2019-11-19 14:41:21 -08:00
gc.c f2fs: show f2fs instance in printk_ratelimited 2019-11-19 14:41:21 -08:00
gc.h f2fs: add SPDX license identifiers 2018-09-12 13:07:10 -07:00
hash.c f2fs: Support case-insensitive file name lookups 2019-08-23 07:57:13 -07:00
inline.c f2fs: fix to avoid accessing uninitialized field of inode page in is_alive() 2019-09-16 08:38:26 -07:00
inode.c f2fs: show f2fs instance in printk_ratelimited 2019-11-19 14:41:21 -08:00
Kconfig f2fs: Add a small clarification to CONFIG_FS_F2FS_FS_SECURITY 2019-09-16 08:38:48 -07:00
Makefile f2fs: add fs-verity support 2019-08-12 19:33:51 -07:00
namei.c f2fs: fix to update dir's i_pino during cross_rename 2019-11-07 11:15:39 -08:00
node.c f2fs: show f2fs instance in printk_ratelimited 2019-11-19 14:41:21 -08:00
node.h f2fs: check PageWriteback flag for ordered case 2018-12-26 15:16:56 -08:00
recovery.c f2fs: support aligned pinned file 2019-11-07 10:40:59 -08:00
segment.c f2fs: Fix deadlock in f2fs_gc() context during atomic files handling 2019-11-19 14:41:21 -08:00
segment.h f2fs: support aligned pinned file 2019-11-07 10:40:59 -08:00
shrinker.c f2fs: fix sbi->extent_list corruption issue 2018-12-26 15:16:54 -08:00
super.c f2fs: choose hardlimit when softlimit is larger than hardlimit in f2fs_statfs_project() 2019-11-25 10:01:12 -08:00
sysfs.c f2fs: support aligned pinned file 2019-11-07 10:40:59 -08:00
trace.c f2fs: do not use mutex lock in atomic context 2019-03-05 19:58:06 -08:00
trace.h f2fs: add SPDX license identifiers 2018-09-12 13:07:10 -07:00
verity.c f2fs: add fs-verity support 2019-08-12 19:33:51 -07:00
xattr.c f2fs: fix to avoid memory leakage in f2fs_listxattr 2019-10-22 10:32:42 -07:00
xattr.h f2fs: add fs-verity support 2019-08-12 19:33:51 -07:00