quota: Move quota files into separate directory

Quota subsystem has more and more files. It's time to create a dir for it.

Signed-off-by: Jan Kara <jack@suse.cz>

1 files changed, 0 insertions, 218 deletions

diff --git a/fs/quota_v1.c b/fs/quota_v1.c
deleted file mode 100644
index b4af1c69ad16..000000000000
--- a/fs/quota_v1.c
+++ /dev/null
@@ -1,218 +0,0 @@
-#include <linux/errno.h>
-#include <linux/fs.h>
-#include <linux/quota.h>
-#include <linux/quotaops.h>
-#include <linux/dqblk_v1.h>
-#include <linux/kernel.h>
-#include <linux/init.h>
-#include <linux/module.h>
-
-#include <asm/byteorder.h>
-
-#include "quotaio_v1.h"
-
-MODULE_AUTHOR("Jan Kara");
-MODULE_DESCRIPTION("Old quota format support");
-MODULE_LICENSE("GPL");
-
-#define QUOTABLOCK_BITS 10
-#define QUOTABLOCK_SIZE (1 << QUOTABLOCK_BITS)
-
-static inline qsize_t v1_stoqb(qsize_t space)
-{
-	return (space + QUOTABLOCK_SIZE - 1) >> QUOTABLOCK_BITS;
-}
-
-static inline qsize_t v1_qbtos(qsize_t blocks)
-{
-	return blocks << QUOTABLOCK_BITS;
-}
-
-static void v1_disk2mem_dqblk(struct mem_dqblk *m, struct v1_disk_dqblk *d)
-{
-	m->dqb_ihardlimit = d->dqb_ihardlimit;
-	m->dqb_isoftlimit = d->dqb_isoftlimit;
-	m->dqb_curinodes = d->dqb_curinodes;
-	m->dqb_bhardlimit = v1_qbtos(d->dqb_bhardlimit);
-	m->dqb_bsoftlimit = v1_qbtos(d->dqb_bsoftlimit);
-	m->dqb_curspace = v1_qbtos(d->dqb_curblocks);
-	m->dqb_itime = d->dqb_itime;
-	m->dqb_btime = d->dqb_btime;
-}
-
-static void v1_mem2disk_dqblk(struct v1_disk_dqblk *d, struct mem_dqblk *m)
-{
-	d->dqb_ihardlimit = m->dqb_ihardlimit;
-	d->dqb_isoftlimit = m->dqb_isoftlimit;
-	d->dqb_curinodes = m->dqb_curinodes;
-	d->dqb_bhardlimit = v1_stoqb(m->dqb_bhardlimit);
-	d->dqb_bsoftlimit = v1_stoqb(m->dqb_bsoftlimit);
-	d->dqb_curblocks = v1_stoqb(m->dqb_curspace);
-	d->dqb_itime = m->dqb_itime;
-	d->dqb_btime = m->dqb_btime;
-}
-
-static int v1_read_dqblk(struct dquot *dquot)
-{
-	int type = dquot->dq_type;
-	struct v1_disk_dqblk dqblk;
-
-	if (!sb_dqopt(dquot->dq_sb)->files[type])
-		return -EINVAL;
-
-	/* Set structure to 0s in case read fails/is after end of file */
-	memset(&dqblk, 0, sizeof(struct v1_disk_dqblk));
-	dquot->dq_sb->s_op->quota_read(dquot->dq_sb, type, (char *)&dqblk, sizeof(struct v1_disk_dqblk), v1_dqoff(dquot->dq_id));
-
-	v1_disk2mem_dqblk(&dquot->dq_dqb, &dqblk);
-	if (dquot->dq_dqb.dqb_bhardlimit == 0 && dquot->dq_dqb.dqb_bsoftlimit == 0 &&
-	    dquot->dq_dqb.dqb_ihardlimit == 0 && dquot->dq_dqb.dqb_isoftlimit == 0)
-		set_bit(DQ_FAKE_B, &dquot->dq_flags);
-	dqstats.reads++;
-
-	return 0;
-}
-
-static int v1_commit_dqblk(struct dquot *dquot)
-{
-	short type = dquot->dq_type;
-	ssize_t ret;
-	struct v1_disk_dqblk dqblk;
-
-	v1_mem2disk_dqblk(&dqblk, &dquot->dq_dqb);
-	if (dquot->dq_id == 0) {
-		dqblk.dqb_btime = sb_dqopt(dquot->dq_sb)->info[type].dqi_bgrace;
-		dqblk.dqb_itime = sb_dqopt(dquot->dq_sb)->info[type].dqi_igrace;
-	}
-	ret = 0;
-	if (sb_dqopt(dquot->dq_sb)->files[type])
-		ret = dquot->dq_sb->s_op->quota_write(dquot->dq_sb, type, (char *)&dqblk,
-					sizeof(struct v1_disk_dqblk), v1_dqoff(dquot->dq_id));
-	if (ret != sizeof(struct v1_disk_dqblk)) {
-		printk(KERN_WARNING "VFS: dquota write failed on dev %s\n",
-			dquot->dq_sb->s_id);
-		if (ret >= 0)
-			ret = -EIO;
-		goto out;
-	}
-	ret = 0;
-
-out:
-	dqstats.writes++;
-
-	return ret;
-}
-
-/* Magics of new quota format */
-#define V2_INITQMAGICS {\
-	0xd9c01f11,     /* USRQUOTA */\
-	0xd9c01927      /* GRPQUOTA */\
-}
-
-/* Header of new quota format */
-struct v2_disk_dqheader {
-	__le32 dqh_magic;        /* Magic number identifying file */
-	__le32 dqh_version;      /* File version */
-};
-
-static int v1_check_quota_file(struct super_block *sb, int type)
-{
-	struct inode *inode = sb_dqopt(sb)->files[type];
-	ulong blocks;
-	size_t off; 
-	struct v2_disk_dqheader dqhead;
-	ssize_t size;
-	loff_t isize;
-	static const uint quota_magics[] = V2_INITQMAGICS;
-
-	isize = i_size_read(inode);
-	if (!isize)
-		return 0;
-	blocks = isize >> BLOCK_SIZE_BITS;
-	off = isize & (BLOCK_SIZE - 1);
-	if ((blocks % sizeof(struct v1_disk_dqblk) * BLOCK_SIZE + off) % sizeof(struct v1_disk_dqblk))
-		return 0;
-	/* Doublecheck whether we didn't get file with new format - with old quotactl() this could happen */
-	size = sb->s_op->quota_read(sb, type, (char *)&dqhead, sizeof(struct v2_disk_dqheader), 0);
-	if (size != sizeof(struct v2_disk_dqheader))
-		return 1;	/* Probably not new format */
-	if (le32_to_cpu(dqhead.dqh_magic) != quota_magics[type])
-		return 1;	/* Definitely not new format */
-	printk(KERN_INFO "VFS: %s: Refusing to turn on old quota format on given file. It probably contains newer quota format.\n", sb->s_id);
-        return 0;		/* Seems like a new format file -> refuse it */
-}
-
-static int v1_read_file_info(struct super_block *sb, int type)
-{
-	struct quota_info *dqopt = sb_dqopt(sb);
-	struct v1_disk_dqblk dqblk;
-	int ret;
-
-	if ((ret = sb->s_op->quota_read(sb, type, (char *)&dqblk, sizeof(struct v1_disk_dqblk), v1_dqoff(0))) != sizeof(struct v1_disk_dqblk)) {
-		if (ret >= 0)
-			ret = -EIO;
-		goto out;
-	}
-	ret = 0;
-	/* limits are stored as unsigned 32-bit data */
-	dqopt->info[type].dqi_maxblimit = 0xffffffff;
-	dqopt->info[type].dqi_maxilimit = 0xffffffff;
-	dqopt->info[type].dqi_igrace = dqblk.dqb_itime ? dqblk.dqb_itime : MAX_IQ_TIME;
-	dqopt->info[type].dqi_bgrace = dqblk.dqb_btime ? dqblk.dqb_btime : MAX_DQ_TIME;
-out:
-	return ret;
-}
-
-static int v1_write_file_info(struct super_block *sb, int type)
-{
-	struct quota_info *dqopt = sb_dqopt(sb);
-	struct v1_disk_dqblk dqblk;
-	int ret;
-
-	dqopt->info[type].dqi_flags &= ~DQF_INFO_DIRTY;
-	if ((ret = sb->s_op->quota_read(sb, type, (char *)&dqblk,
-	    sizeof(struct v1_disk_dqblk), v1_dqoff(0))) != sizeof(struct v1_disk_dqblk)) {
-		if (ret >= 0)
-			ret = -EIO;
-		goto out;
-	}
-	dqblk.dqb_itime = dqopt->info[type].dqi_igrace;
-	dqblk.dqb_btime = dqopt->info[type].dqi_bgrace;
-	ret = sb->s_op->quota_write(sb, type, (char *)&dqblk,
-	      sizeof(struct v1_disk_dqblk), v1_dqoff(0));
-	if (ret == sizeof(struct v1_disk_dqblk))
-		ret = 0;
-	else if (ret > 0)
-		ret = -EIO;
-out:
-	return ret;
-}
-
-static struct quota_format_ops v1_format_ops = {
-	.check_quota_file	= v1_check_quota_file,
-	.read_file_info		= v1_read_file_info,
-	.write_file_info	= v1_write_file_info,
-	.free_file_info		= NULL,
-	.read_dqblk		= v1_read_dqblk,
-	.commit_dqblk		= v1_commit_dqblk,
-};
-
-static struct quota_format_type v1_quota_format = {
-	.qf_fmt_id	= QFMT_VFS_OLD,
-	.qf_ops		= &v1_format_ops,
-	.qf_owner	= THIS_MODULE
-};
-
-static int __init init_v1_quota_format(void)
-{
-        return register_quota_format(&v1_quota_format);
-}
-
-static void __exit exit_v1_quota_format(void)
-{
-        unregister_quota_format(&v1_quota_format);
-}
-
-module_init(init_v1_quota_format);
-module_exit(exit_v1_quota_format);
-