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ext4: don't use MAXQUOTAS value
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MAXQUOTAS value defines maximum number of quota types VFS supports.
This isn't necessarily the number of types ext4 supports. Although
ext4 will support project quotas, use ext4 private definition for
consistency with other filesystems.

Signed-off-by: Jan Kara <jack@suse.cz>
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
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Jan Kara authored and Theodore Ts'o committed Sep 11, 2014
1 parent a49058f commit a2d4a64
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Showing 3 changed files with 18 additions and 15 deletions.
5 changes: 4 additions & 1 deletion fs/ext4/ext4.h
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Original file line number Diff line number Diff line change
Expand Up @@ -1175,6 +1175,9 @@ struct ext4_super_block {
#define EXT4_MF_MNTDIR_SAMPLED 0x0001
#define EXT4_MF_FS_ABORTED 0x0002 /* Fatal error detected */

/* Number of quota types we support */
#define EXT4_MAXQUOTAS 2

/*
* fourth extended-fs super-block data in memory
*/
Expand Down Expand Up @@ -1238,7 +1241,7 @@ struct ext4_sb_info {
u32 s_min_batch_time;
struct block_device *journal_bdev;
#ifdef CONFIG_QUOTA
char *s_qf_names[MAXQUOTAS]; /* Names of quota files with journalled quota */
char *s_qf_names[EXT4_MAXQUOTAS]; /* Names of quota files with journalled quota */
int s_jquota_fmt; /* Format of quota to use */
#endif
unsigned int s_want_extra_isize; /* New inodes should reserve # bytes */
Expand Down
6 changes: 3 additions & 3 deletions fs/ext4/ext4_jbd2.h
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Original file line number Diff line number Diff line change
Expand Up @@ -102,9 +102,9 @@
#define EXT4_QUOTA_INIT_BLOCKS(sb) 0
#define EXT4_QUOTA_DEL_BLOCKS(sb) 0
#endif
#define EXT4_MAXQUOTAS_TRANS_BLOCKS(sb) (MAXQUOTAS*EXT4_QUOTA_TRANS_BLOCKS(sb))
#define EXT4_MAXQUOTAS_INIT_BLOCKS(sb) (MAXQUOTAS*EXT4_QUOTA_INIT_BLOCKS(sb))
#define EXT4_MAXQUOTAS_DEL_BLOCKS(sb) (MAXQUOTAS*EXT4_QUOTA_DEL_BLOCKS(sb))
#define EXT4_MAXQUOTAS_TRANS_BLOCKS(sb) (EXT4_MAXQUOTAS*EXT4_QUOTA_TRANS_BLOCKS(sb))
#define EXT4_MAXQUOTAS_INIT_BLOCKS(sb) (EXT4_MAXQUOTAS*EXT4_QUOTA_INIT_BLOCKS(sb))
#define EXT4_MAXQUOTAS_DEL_BLOCKS(sb) (EXT4_MAXQUOTAS*EXT4_QUOTA_DEL_BLOCKS(sb))

static inline int ext4_jbd2_credits_xattr(struct inode *inode)
{
Expand Down
22 changes: 11 additions & 11 deletions fs/ext4/super.c
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Original file line number Diff line number Diff line change
Expand Up @@ -822,7 +822,7 @@ static void ext4_put_super(struct super_block *sb)
percpu_counter_destroy(&sbi->s_dirtyclusters_counter);
brelse(sbi->s_sbh);
#ifdef CONFIG_QUOTA
for (i = 0; i < MAXQUOTAS; i++)
for (i = 0; i < EXT4_MAXQUOTAS; i++)
kfree(sbi->s_qf_names[i]);
#endif

Expand Down Expand Up @@ -2207,7 +2207,7 @@ static void ext4_orphan_cleanup(struct super_block *sb,
/* Needed for iput() to work correctly and not trash data */
sb->s_flags |= MS_ACTIVE;
/* Turn on quotas so that they are updated correctly */
for (i = 0; i < MAXQUOTAS; i++) {
for (i = 0; i < EXT4_MAXQUOTAS; i++) {
if (EXT4_SB(sb)->s_qf_names[i]) {
int ret = ext4_quota_on_mount(sb, i);
if (ret < 0)
Expand Down Expand Up @@ -2263,7 +2263,7 @@ static void ext4_orphan_cleanup(struct super_block *sb,
PLURAL(nr_truncates));
#ifdef CONFIG_QUOTA
/* Turn quotas off */
for (i = 0; i < MAXQUOTAS; i++) {
for (i = 0; i < EXT4_MAXQUOTAS; i++) {
if (sb_dqopt(sb)->files[i])
dquot_quota_off(sb, i);
}
Expand Down Expand Up @@ -4238,7 +4238,7 @@ static int ext4_fill_super(struct super_block *sb, void *data, int silent)
remove_proc_entry(sb->s_id, ext4_proc_root);
}
#ifdef CONFIG_QUOTA
for (i = 0; i < MAXQUOTAS; i++)
for (i = 0; i < EXT4_MAXQUOTAS; i++)
kfree(sbi->s_qf_names[i]);
#endif
ext4_blkdev_remove(sbi);
Expand Down Expand Up @@ -4765,7 +4765,7 @@ struct ext4_mount_options {
u32 s_min_batch_time, s_max_batch_time;
#ifdef CONFIG_QUOTA
int s_jquota_fmt;
char *s_qf_names[MAXQUOTAS];
char *s_qf_names[EXT4_MAXQUOTAS];
#endif
};

Expand Down Expand Up @@ -4795,7 +4795,7 @@ static int ext4_remount(struct super_block *sb, int *flags, char *data)
old_opts.s_max_batch_time = sbi->s_max_batch_time;
#ifdef CONFIG_QUOTA
old_opts.s_jquota_fmt = sbi->s_jquota_fmt;
for (i = 0; i < MAXQUOTAS; i++)
for (i = 0; i < EXT4_MAXQUOTAS; i++)
if (sbi->s_qf_names[i]) {
old_opts.s_qf_names[i] = kstrdup(sbi->s_qf_names[i],
GFP_KERNEL);
Expand Down Expand Up @@ -4956,7 +4956,7 @@ static int ext4_remount(struct super_block *sb, int *flags, char *data)

#ifdef CONFIG_QUOTA
/* Release old quota file names */
for (i = 0; i < MAXQUOTAS; i++)
for (i = 0; i < EXT4_MAXQUOTAS; i++)
kfree(old_opts.s_qf_names[i]);
if (enable_quota) {
if (sb_any_quota_suspended(sb))
Expand Down Expand Up @@ -4985,7 +4985,7 @@ static int ext4_remount(struct super_block *sb, int *flags, char *data)
sbi->s_max_batch_time = old_opts.s_max_batch_time;
#ifdef CONFIG_QUOTA
sbi->s_jquota_fmt = old_opts.s_jquota_fmt;
for (i = 0; i < MAXQUOTAS; i++) {
for (i = 0; i < EXT4_MAXQUOTAS; i++) {
kfree(sbi->s_qf_names[i]);
sbi->s_qf_names[i] = old_opts.s_qf_names[i];
}
Expand Down Expand Up @@ -5188,7 +5188,7 @@ static int ext4_quota_enable(struct super_block *sb, int type, int format_id,
{
int err;
struct inode *qf_inode;
unsigned long qf_inums[MAXQUOTAS] = {
unsigned long qf_inums[EXT4_MAXQUOTAS] = {
le32_to_cpu(EXT4_SB(sb)->s_es->s_usr_quota_inum),
le32_to_cpu(EXT4_SB(sb)->s_es->s_grp_quota_inum)
};
Expand Down Expand Up @@ -5216,13 +5216,13 @@ static int ext4_quota_enable(struct super_block *sb, int type, int format_id,
static int ext4_enable_quotas(struct super_block *sb)
{
int type, err = 0;
unsigned long qf_inums[MAXQUOTAS] = {
unsigned long qf_inums[EXT4_MAXQUOTAS] = {
le32_to_cpu(EXT4_SB(sb)->s_es->s_usr_quota_inum),
le32_to_cpu(EXT4_SB(sb)->s_es->s_grp_quota_inum)
};

sb_dqopt(sb)->flags |= DQUOT_QUOTA_SYS_FILE;
for (type = 0; type < MAXQUOTAS; type++) {
for (type = 0; type < EXT4_MAXQUOTAS; type++) {
if (qf_inums[type]) {
err = ext4_quota_enable(sb, type, QFMT_VFS_V1,
DQUOT_USAGE_ENABLED);
Expand Down

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