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Diffstat (limited to 'fs/quota')
-rw-r--r--fs/quota/dquot.c9
-rw-r--r--fs/quota/quota.c24
2 files changed, 27 insertions, 6 deletions
diff --git a/fs/quota/dquot.c b/fs/quota/dquot.c
index 5ec59b20cf76..8b4f12b33f57 100644
--- a/fs/quota/dquot.c
+++ b/fs/quota/dquot.c
@@ -71,6 +71,7 @@
#include <linux/module.h>
#include <linux/proc_fs.h>
#include <linux/security.h>
+#include <linux/sched.h>
#include <linux/kmod.h>
#include <linux/namei.h>
#include <linux/capability.h>
@@ -2125,6 +2126,8 @@ static int vfs_load_quota_inode(struct inode *inode, int type, int format_id,
mutex_unlock(&dqopt->dqio_mutex);
goto out_file_init;
}
+ if (dqopt->flags & DQUOT_QUOTA_SYS_FILE)
+ dqopt->info[type].dqi_flags |= DQF_SYS_FILE;
mutex_unlock(&dqopt->dqio_mutex);
spin_lock(&dq_state_lock);
dqopt->flags |= dquot_state_flag(flags, type);
@@ -2464,7 +2467,7 @@ int dquot_get_dqinfo(struct super_block *sb, int type, struct if_dqinfo *ii)
spin_lock(&dq_data_lock);
ii->dqi_bgrace = mi->dqi_bgrace;
ii->dqi_igrace = mi->dqi_igrace;
- ii->dqi_flags = mi->dqi_flags & DQF_MASK;
+ ii->dqi_flags = mi->dqi_flags & DQF_GETINFO_MASK;
ii->dqi_valid = IIF_ALL;
spin_unlock(&dq_data_lock);
mutex_unlock(&sb_dqopt(sb)->dqonoff_mutex);
@@ -2490,8 +2493,8 @@ int dquot_set_dqinfo(struct super_block *sb, int type, struct if_dqinfo *ii)
if (ii->dqi_valid & IIF_IGRACE)
mi->dqi_igrace = ii->dqi_igrace;
if (ii->dqi_valid & IIF_FLAGS)
- mi->dqi_flags = (mi->dqi_flags & ~DQF_MASK) |
- (ii->dqi_flags & DQF_MASK);
+ mi->dqi_flags = (mi->dqi_flags & ~DQF_SETINFO_MASK) |
+ (ii->dqi_flags & DQF_SETINFO_MASK);
spin_unlock(&dq_data_lock);
mark_info_dirty(sb, type);
/* Force write to disk */
diff --git a/fs/quota/quota.c b/fs/quota/quota.c
index 7a9bedeb1d57..9a391204ca27 100644
--- a/fs/quota/quota.c
+++ b/fs/quota/quota.c
@@ -291,11 +291,26 @@ static int do_quotactl(struct super_block *sb, int type, int cmd, qid_t id,
}
}
+/* Return 1 if 'cmd' will block on frozen filesystem */
+static int quotactl_cmd_write(int cmd)
+{
+ switch (cmd) {
+ case Q_GETFMT:
+ case Q_GETINFO:
+ case Q_SYNC:
+ case Q_XGETQSTAT:
+ case Q_XGETQUOTA:
+ case Q_XQUOTASYNC:
+ return 0;
+ }
+ return 1;
+}
+
/*
* look up a superblock on which quota ops will be performed
* - use the name of a block device to find the superblock thereon
*/
-static struct super_block *quotactl_block(const char __user *special)
+static struct super_block *quotactl_block(const char __user *special, int cmd)
{
#ifdef CONFIG_BLOCK
struct block_device *bdev;
@@ -308,7 +323,10 @@ static struct super_block *quotactl_block(const char __user *special)
putname(tmp);
if (IS_ERR(bdev))
return ERR_CAST(bdev);
- sb = get_super(bdev);
+ if (quotactl_cmd_write(cmd))
+ sb = get_super_thawed(bdev);
+ else
+ sb = get_super(bdev);
bdput(bdev);
if (!sb)
return ERR_PTR(-ENODEV);
@@ -360,7 +378,7 @@ SYSCALL_DEFINE4(quotactl, unsigned int, cmd, const char __user *, special,
pathp = &path;
}
- sb = quotactl_block(special);
+ sb = quotactl_block(special, cmds);
if (IS_ERR(sb)) {
ret = PTR_ERR(sb);
goto out;