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reiserfs: Set flags on quota files directly 

Currently immutable and noatime flags on quota files are set by quota
code which requires us to copy inode->i_flags to our on disk version of
quota flags in GETFLAGS ioctl and when writing stat item. Move to
setting / clearing these on-disk flags directly to save that copying.

Signed-off-by: Jan Kara <jack@suse.cz>
hifive-unleashed-5.1
Jan Kara 2017-04-06 16:34:53 +02:00
parent 957153fce8
commit 33eb928a9e
1 changed files with 54 additions and 3 deletions
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57
fs/reiserfs/super.c
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@ -570,12 +570,28 @@ static void reiserfs_kill_sb(struct super_block *s)
kill_block_super(s);
}
#ifdef CONFIG_QUOTA
static int reiserfs_quota_off(struct super_block *sb, int type);
static void reiserfs_quota_off_umount(struct super_block *s)
{
int type;
for (type = 0; type < REISERFS_MAXQUOTAS; type++)
reiserfs_quota_off(s, type);
}
#else
static inline void reiserfs_quota_off_umount(struct super_block *s)
{
}
#endif
static void reiserfs_put_super(struct super_block *s)
{
struct reiserfs_transaction_handle th;
th.t_trans_id = 0;
dquot_disable(s, -1, DQUOT_USAGE_ENABLED | DQUOT_LIMITS_ENABLED);
reiserfs_quota_off_umount(s);
reiserfs_write_lock(s);
@ -840,7 +856,7 @@ static const struct dquot_operations reiserfs_quota_operations = {
static const struct quotactl_ops reiserfs_qctl_operations = {
.quota_on = reiserfs_quota_on,
.quota_off = dquot_quota_off,
.quota_off = reiserfs_quota_off,
.quota_sync = dquot_quota_sync,
.get_state = dquot_get_state,
.set_info = dquot_set_dqinfo,
@ -2428,12 +2444,47 @@ static int reiserfs_quota_on(struct super_block *sb, int type, int format_id,
goto out;
}
reiserfs_write_unlock(sb);
return dquot_quota_on(sb, type, format_id, path);
err = dquot_quota_on(sb, type, format_id, path);
if (!err) {
inode_lock(inode);
REISERFS_I(inode)->i_attrs |= REISERFS_IMMUTABLE_FL |
REISERFS_NOATIME_FL;
inode_set_flags(inode, S_IMMUTABLE | S_NOATIME,
S_IMMUTABLE | S_NOATIME);
inode_unlock(inode);
mark_inode_dirty(inode);
}
return err;
out:
reiserfs_write_unlock(sb);
return err;
}
static int reiserfs_quota_off(struct super_block *sb, int type)
{
int err;
struct inode *inode = sb_dqopt(sb)->files[type];
if (!inode || !igrab(inode))
goto out;
err = dquot_quota_off(sb, type);
if (err)
goto out_put;
inode_lock(inode);
REISERFS_I(inode)->i_attrs &= ~(REISERFS_IMMUTABLE_FL |
REISERFS_NOATIME_FL);
inode_set_flags(inode, 0, S_IMMUTABLE | S_NOATIME);
inode_unlock(inode);
mark_inode_dirty(inode);
out_put:
iput(inode);
return err;
out:
return dquot_quota_off(sb, type);
}
/*
* Read data from quotafile - avoid pagecache and such because we cannot afford
* acquiring the locks... As quota files are never truncated and quota code