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Date: Fri, 29 Oct 2010 17:03:40 +0400
From: Dmitry Monakhov <dmonakhov@...nvz.org>
To: linux-fsdevel@...r.kernel.org
Cc: viro@...IV.linux.org.uk, jack@...e.cz, linux-ext4@...r.kernel.org,
Dmitry Monakhov <dmonakhov@...nvz.org>
Subject: [PATCH 4/4] ext4: add project quota support
Both regular and journaled quota are supported.
Signed-off-by: Dmitry Monakhov <dmonakhov@...nvz.org>
---
fs/ext4/ext4.h | 1 +
fs/ext4/super.c | 65 ++++++++++++++++++++++++++++++++++++++++++++++++------
2 files changed, 58 insertions(+), 8 deletions(-)
diff --git a/fs/ext4/ext4.h b/fs/ext4/ext4.h
index 0547875..0cd6039 100644
--- a/fs/ext4/ext4.h
+++ b/fs/ext4/ext4.h
@@ -893,6 +893,7 @@ struct ext4_inode_info {
#define EXT4_MOUNT_ERRORS_PANIC 0x00040 /* Panic on errors */
#define EXT4_MOUNT_MINIX_DF 0x00080 /* Mimics the Minix statfs */
#define EXT4_MOUNT_NOLOAD 0x00100 /* Don't use existing journal*/
+#define EXT4_MOUNT_PRJQUOTA 0x00200 /* Project quota support */
#define EXT4_MOUNT_DATA_FLAGS 0x00C00 /* Mode for data writes: */
#define EXT4_MOUNT_JOURNAL_DATA 0x00400 /* Write data to journal */
#define EXT4_MOUNT_ORDERED_DATA 0x00800 /* Flush data before commit */
diff --git a/fs/ext4/super.c b/fs/ext4/super.c
index 5abc609..51b84e5 100644
--- a/fs/ext4/super.c
+++ b/fs/ext4/super.c
@@ -917,11 +917,18 @@ static inline void ext4_show_quota_options(struct seq_file *seq,
if (sbi->s_qf_names[GRPQUOTA])
seq_printf(seq, ",grpjquota=%s", sbi->s_qf_names[GRPQUOTA]);
+ if (sbi->s_qf_names[PRJQUOTA])
+ seq_printf(seq, ",prjjquota=%s", sbi->s_qf_names[PRJQUOTA]);
+
if (test_opt(sb, USRQUOTA))
seq_puts(seq, ",usrquota");
if (test_opt(sb, GRPQUOTA))
seq_puts(seq, ",grpquota");
+
+ if (test_opt(sb, PRJQUOTA))
+ seq_puts(seq, ",prjquota");
+
#endif
}
@@ -1132,8 +1139,8 @@ static int bdev_try_to_free_page(struct super_block *sb, struct page *page,
}
#ifdef CONFIG_QUOTA
-#define QTYPE2NAME(t) ((t) == USRQUOTA ? "user" : "group")
-#define QTYPE2MOPT(on, t) ((t) == USRQUOTA?((on)##USRJQUOTA):((on)##GRPJQUOTA))
+static char *quotatypes[] = INITQFNAMES;
+#define QTYPE2NAME(t) (quotatypes[t])
static int ext4_write_dquot(struct dquot *dquot);
static int ext4_acquire_dquot(struct dquot *dquot);
@@ -1235,10 +1242,11 @@ enum {
Opt_journal_checksum, Opt_journal_async_commit,
Opt_abort, Opt_data_journal, Opt_data_ordered, Opt_data_writeback,
Opt_data_err_abort, Opt_data_err_ignore,
- Opt_usrjquota, Opt_grpjquota, Opt_offusrjquota, Opt_offgrpjquota,
+ Opt_usrjquota, Opt_grpjquota, Opt_prjjquota, Opt_offusrjquota,
+ Opt_offgrpjquota, Opt_offprjjquota,
Opt_jqfmt_vfsold, Opt_jqfmt_vfsv0, Opt_jqfmt_vfsv1, Opt_quota,
Opt_noquota, Opt_ignore, Opt_barrier, Opt_nobarrier, Opt_err,
- Opt_resize, Opt_usrquota, Opt_grpquota, Opt_i_version,
+ Opt_resize, Opt_usrquota, Opt_grpquota, Opt_prjquota, Opt_i_version,
Opt_stripe, Opt_delalloc, Opt_nodelalloc,
Opt_block_validity, Opt_noblock_validity,
Opt_inode_readahead_blks, Opt_journal_ioprio,
@@ -1289,10 +1297,13 @@ static const match_table_t tokens = {
{Opt_usrjquota, "usrjquota=%s"},
{Opt_offgrpjquota, "grpjquota="},
{Opt_grpjquota, "grpjquota=%s"},
+ {Opt_offprjjquota, "prjjquota="},
+ {Opt_prjjquota, "prjjquota=%s"},
{Opt_jqfmt_vfsold, "jqfmt=vfsold"},
{Opt_jqfmt_vfsv0, "jqfmt=vfsv0"},
{Opt_jqfmt_vfsv1, "jqfmt=vfsv1"},
{Opt_grpquota, "grpquota"},
+ {Opt_prjquota, "prjquota"},
{Opt_noquota, "noquota"},
{Opt_quota, "quota"},
{Opt_usrquota, "usrquota"},
@@ -1615,6 +1626,16 @@ static int parse_options(char *options, struct super_block *sb,
if (!set_qf_name(sb, GRPQUOTA, &args[0]))
return 0;
break;
+
+ case Opt_prjjquota:
+#ifdef CONFIG_PROJECT_ID
+ if (!set_qf_name(sb, PRJQUOTA, &args[0]))
+ return 0;
+#else
+ ext4_msg(sb, KERN_ERR,
+ "project quota options not supported");
+#endif
+ break;
case Opt_offusrjquota:
if (!clear_qf_name(sb, USRQUOTA))
return 0;
@@ -1623,7 +1644,15 @@ static int parse_options(char *options, struct super_block *sb,
if (!clear_qf_name(sb, GRPQUOTA))
return 0;
break;
-
+ case Opt_offprjjquota:
+#ifdef CONFIG_PROJECT_ID
+ if (!clear_qf_name(sb, PRJQUOTA))
+ return 0;
+#else
+ ext4_msg(sb, KERN_ERR,
+ "project quota options not supported");
+#endif
+ break;
case Opt_jqfmt_vfsold:
qfmt = QFMT_VFS_OLD;
goto set_qf_format;
@@ -1651,6 +1680,16 @@ set_qf_format:
set_opt(sbi->s_mount_opt, QUOTA);
set_opt(sbi->s_mount_opt, GRPQUOTA);
break;
+ case Opt_prjquota:
+#ifdef CONFIG_PROJECT_ID
+ set_opt(sbi->s_mount_opt, PROJECT_ID);
+ set_opt(sbi->s_mount_opt, QUOTA);
+ set_opt(sbi->s_mount_opt, PRJQUOTA);
+#else
+ ext4_msg(sb, KERN_ERR,
+ "project quota options not supported");
+#endif
+ break;
case Opt_noquota:
if (sb_any_quota_loaded(sb)) {
ext4_msg(sb, KERN_ERR, "Cannot change quota "
@@ -1660,18 +1699,22 @@ set_qf_format:
clear_opt(sbi->s_mount_opt, QUOTA);
clear_opt(sbi->s_mount_opt, USRQUOTA);
clear_opt(sbi->s_mount_opt, GRPQUOTA);
+ clear_opt(sbi->s_mount_opt, PRJQUOTA);
break;
#else
case Opt_quota:
case Opt_usrquota:
case Opt_grpquota:
+ case Opt_prjquota:
ext4_msg(sb, KERN_ERR,
"quota options not supported");
break;
case Opt_usrjquota:
case Opt_grpjquota:
+ case Opt_prjjquota:
case Opt_offusrjquota:
case Opt_offgrpjquota:
+ case Opt_offprjjquota:
case Opt_jqfmt_vfsold:
case Opt_jqfmt_vfsv0:
case Opt_jqfmt_vfsv1:
@@ -1814,14 +1857,19 @@ set_qf_format:
}
}
#ifdef CONFIG_QUOTA
- if (sbi->s_qf_names[USRQUOTA] || sbi->s_qf_names[GRPQUOTA]) {
+ if (sbi->s_qf_names[USRQUOTA] || sbi->s_qf_names[GRPQUOTA] ||
+ sbi->s_qf_names[PRJQUOTA]) {
if (test_opt(sb, USRQUOTA) && sbi->s_qf_names[USRQUOTA])
clear_opt(sbi->s_mount_opt, USRQUOTA);
if (test_opt(sb, GRPQUOTA) && sbi->s_qf_names[GRPQUOTA])
clear_opt(sbi->s_mount_opt, GRPQUOTA);
- if (test_opt(sb, GRPQUOTA) || test_opt(sb, USRQUOTA)) {
+ if (test_opt(sb, PRJQUOTA) && sbi->s_qf_names[PRJQUOTA])
+ clear_opt(sbi->s_mount_opt, PRJQUOTA);
+
+ if (test_opt(sb, GRPQUOTA) || test_opt(sb, USRQUOTA) ||
+ test_opt(sb, PRJQUOTA)) {
ext4_msg(sb, KERN_ERR, "old and new quota "
"format mixing");
return 0;
@@ -4486,7 +4534,8 @@ static int ext4_mark_dquot_dirty(struct dquot *dquot)
{
/* Are we journaling quotas? */
if (EXT4_SB(dquot->dq_sb)->s_qf_names[USRQUOTA] ||
- EXT4_SB(dquot->dq_sb)->s_qf_names[GRPQUOTA]) {
+ EXT4_SB(dquot->dq_sb)->s_qf_names[GRPQUOTA] ||
+ EXT4_SB(dquot->dq_sb)->s_qf_names[PRJQUOTA]) {
dquot_mark_dquot_dirty(dquot);
return ext4_write_dquot(dquot);
} else {
--
1.6.5.2
--
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