* in the LICENSE file that accompanied this code).
*
* You should have received a copy of the GNU General Public License
- * version 2 along with this program; If not, see [sun.com URL with a
- * copy of GPLv2].
+ * version 2 along with this program; If not, see
+ * http://www.sun.com/software/products/lustre/docs/GPLv2.pdf
*
* Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
* CA 95054 USA or visit www.sun.com if you need additional information or
* from linux/fs/quota_v2.c
*/
-
#ifndef EXPORT_SYMTAB
# define EXPORT_SYMTAB
#endif
#include <linux/init.h>
#include <linux/module.h>
#include <linux/slab.h>
-#include <linux/quotaio_v1.h>
+#ifdef HAVE_QUOTAIO_V1_H
+# include <linux/quotaio_v1.h>
+#endif
#include <asm/byteorder.h>
#include <asm/uaccess.h>
#include <lustre_quota.h>
+#include <obd_support.h>
#include "lustre_quota_fmt.h"
-typedef char *dqbuf_t;
+#ifdef HAVE_QUOTA_SUPPORT
+
+static const uint lustre_initqversions[][MAXQUOTAS] = {
+ [LUSTRE_QUOTA_V2] = LUSTRE_INITQVERSIONS_V2
+};
-#define GETIDINDEX(id, depth) (((id) >> ((LUSTRE_DQTREEDEPTH-(depth)-1)*8)) & 0xff)
-#define GETENTRIES(buf) ((struct lustre_disk_dqblk *)(((char *)buf)+sizeof(struct lustre_disk_dqdbheader)))
+static const int lustre_dqstrinblk[] = {
+ [LUSTRE_QUOTA_V2] = LUSTRE_DQSTRINBLK_V2
+};
+
+static const int lustre_disk_dqblk_sz[] = {
+ [LUSTRE_QUOTA_V2] = sizeof(struct lustre_disk_dqblk_v2)
+};
+
+static const union
+{
+ struct lustre_disk_dqblk_v2 r1;
+} fakedquot[] = {
+ [LUSTRE_QUOTA_V2] = {.r1 = {.dqb_itime = __constant_cpu_to_le64(1LLU)} }
+};
+
+static const union
+{
+ struct lustre_disk_dqblk_v2 r1;
+} emptydquot[] = {
+ [LUSTRE_QUOTA_V2] = {.r1 = { 0 } }
+};
-static int check_quota_file(struct file *f, struct inode *inode, int type)
+int check_quota_file(struct file *f, struct inode *inode, int type,
+ lustre_quota_version_t version)
{
struct lustre_disk_dqheader dqhead;
mm_segment_t fs;
ssize_t size;
loff_t offset = 0;
static const uint quota_magics[] = LUSTRE_INITQMAGICS;
- static const uint quota_versions[] = LUSTRE_INITQVERSIONS;
+ const uint *quota_versions = lustre_initqversions[version];
+
+ if (!inode && !f) {
+ CERROR("check_quota_file failed!\n");
+ libcfs_debug_dumpstack(NULL);
+ return -EINVAL;
+ }
if (f) {
fs = get_fs();
#else
struct super_block *sb = inode->i_sb;
size = sb->s_op->quota_read(sb, type, (char *)&dqhead,
- sizeof(struct lustre_disk_dqheader), 0);
+ sizeof(struct lustre_disk_dqheader),
+ 0);
#endif
}
if (size != sizeof(struct lustre_disk_dqheader))
- return 0;
+ return -EINVAL;
if (le32_to_cpu(dqhead.dqh_magic) != quota_magics[type] ||
le32_to_cpu(dqhead.dqh_version) != quota_versions[type])
- return 0;
- return 1;
+ return -EINVAL;
+ return 0;
}
-/* Check whether given file is really lustre admin quotafile */
+/**
+ * Check whether given file is really lustre admin quotafile
+ */
int lustre_check_quota_file(struct lustre_quota_info *lqi, int type)
{
struct file *f = lqi->qi_files[type];
- return check_quota_file(f, NULL, type);
+ return check_quota_file(f, NULL, type, lqi->qi_version);
}
-/* Read information header from quota file */
-int lustre_read_quota_info(struct lustre_quota_info *lqi, int type)
+int lustre_read_quota_file_info(struct file* f, struct lustre_mem_dqinfo* info)
{
mm_segment_t fs;
struct lustre_disk_dqinfo dinfo;
- struct lustre_mem_dqinfo *info = &lqi->qi_info[type];
- struct file *f = lqi->qi_files[type];
ssize_t size;
loff_t offset = LUSTRE_DQINFOOFF;
sizeof(struct lustre_disk_dqinfo), &offset);
set_fs(fs);
if (size != sizeof(struct lustre_disk_dqinfo)) {
- printk(KERN_WARNING "Can't read info structure on device %s.\n",
+ CDEBUG(D_ERROR, "Can't read info structure on device %s.\n",
f->f_vfsmnt->mnt_sb->s_id);
- return -1;
+ return -EINVAL;
}
info->dqi_bgrace = le32_to_cpu(dinfo.dqi_bgrace);
info->dqi_igrace = le32_to_cpu(dinfo.dqi_igrace);
return 0;
}
-/* Write information header to quota file */
+/**
+ * Read information header from quota file
+ */
+int lustre_read_quota_info(struct lustre_quota_info *lqi, int type)
+{
+ return lustre_read_quota_file_info(lqi->qi_files[type],
+ &lqi->qi_info[type]);
+}
+
+/**
+ * Write information header to quota file
+ */
int lustre_write_quota_info(struct lustre_quota_info *lqi, int type)
{
mm_segment_t fs;
sizeof(struct lustre_disk_dqinfo), &offset);
set_fs(fs);
if (size != sizeof(struct lustre_disk_dqinfo)) {
- printk(KERN_WARNING
+ CDEBUG(D_WARNING,
"Can't write info structure on device %s.\n",
f->f_vfsmnt->mnt_sb->s_id);
return -1;
return 0;
}
-static void disk2memdqb(struct mem_dqblk *m, struct lustre_disk_dqblk *d)
+void disk2memdqb(struct lustre_mem_dqblk *m, void *d,
+ lustre_quota_version_t version)
{
- m->dqb_ihardlimit = le32_to_cpu(d->dqb_ihardlimit);
- m->dqb_isoftlimit = le32_to_cpu(d->dqb_isoftlimit);
- m->dqb_curinodes = le32_to_cpu(d->dqb_curinodes);
- m->dqb_itime = le64_to_cpu(d->dqb_itime);
- m->dqb_bhardlimit = le32_to_cpu(d->dqb_bhardlimit);
- m->dqb_bsoftlimit = le32_to_cpu(d->dqb_bsoftlimit);
- m->dqb_curspace = le64_to_cpu(d->dqb_curspace);
- m->dqb_btime = le64_to_cpu(d->dqb_btime);
+ struct lustre_disk_dqblk_v2 *dqblk = (struct lustre_disk_dqblk_v2 *)d;
+
+ LASSERT(version == LUSTRE_QUOTA_V2);
+
+ m->dqb_ihardlimit = le64_to_cpu(dqblk->dqb_ihardlimit);
+ m->dqb_isoftlimit = le64_to_cpu(dqblk->dqb_isoftlimit);
+ m->dqb_curinodes = le64_to_cpu(dqblk->dqb_curinodes);
+ m->dqb_itime = le64_to_cpu(dqblk->dqb_itime);
+ m->dqb_bhardlimit = le64_to_cpu(dqblk->dqb_bhardlimit);
+ m->dqb_bsoftlimit = le64_to_cpu(dqblk->dqb_bsoftlimit);
+ m->dqb_curspace = le64_to_cpu(dqblk->dqb_curspace);
+ m->dqb_btime = le64_to_cpu(dqblk->dqb_btime);
}
-static void mem2diskdqb(struct lustre_disk_dqblk *d, struct mem_dqblk *m,
- qid_t id)
+static int mem2diskdqb(void *d, struct lustre_mem_dqblk *m,
+ qid_t id, lustre_quota_version_t version)
{
- d->dqb_ihardlimit = cpu_to_le32(m->dqb_ihardlimit);
- d->dqb_isoftlimit = cpu_to_le32(m->dqb_isoftlimit);
- d->dqb_curinodes = cpu_to_le32(m->dqb_curinodes);
- d->dqb_itime = cpu_to_le64(m->dqb_itime);
- d->dqb_bhardlimit = cpu_to_le32(m->dqb_bhardlimit);
- d->dqb_bsoftlimit = cpu_to_le32(m->dqb_bsoftlimit);
- d->dqb_curspace = cpu_to_le64(m->dqb_curspace);
- d->dqb_btime = cpu_to_le64(m->dqb_btime);
- d->dqb_id = cpu_to_le32(id);
+ struct lustre_disk_dqblk_v2 *dqblk = (struct lustre_disk_dqblk_v2 *)d;
+
+ LASSERT(version == LUSTRE_QUOTA_V2);
+
+ dqblk->dqb_ihardlimit = cpu_to_le64(m->dqb_ihardlimit);
+ dqblk->dqb_isoftlimit = cpu_to_le64(m->dqb_isoftlimit);
+ dqblk->dqb_curinodes = cpu_to_le64(m->dqb_curinodes);
+ dqblk->dqb_itime = cpu_to_le64(m->dqb_itime);
+ dqblk->dqb_bhardlimit = cpu_to_le64(m->dqb_bhardlimit);
+ dqblk->dqb_bsoftlimit = cpu_to_le64(m->dqb_bsoftlimit);
+ dqblk->dqb_curspace = cpu_to_le64(m->dqb_curspace);
+ dqblk->dqb_btime = cpu_to_le64(m->dqb_btime);
+ dqblk->dqb_id = cpu_to_le32(id);
+
+ return 0;
}
-static dqbuf_t getdqbuf(void)
+dqbuf_t getdqbuf(void)
{
dqbuf_t buf = kmalloc(LUSTRE_DQBLKSIZE, GFP_NOFS);
if (!buf)
- printk(KERN_WARNING
+ CDEBUG(D_WARNING,
"VFS: Not enough memory for quota buffers.\n");
return buf;
}
-static inline void freedqbuf(dqbuf_t buf)
+void freedqbuf(dqbuf_t buf)
{
kfree(buf);
}
-static ssize_t read_blk(struct file *filp, uint blk, dqbuf_t buf)
+ssize_t read_blk(struct file *filp, uint blk, dqbuf_t buf)
{
mm_segment_t fs;
ssize_t ret;
return ret;
}
-static ssize_t write_blk(struct file *filp, uint blk, dqbuf_t buf)
+ssize_t write_blk(struct file *filp, uint blk, dqbuf_t buf)
{
mm_segment_t fs;
ssize_t ret;
ret = filp->f_op->write(filp, (char *)buf, LUSTRE_DQBLKSIZE, &offset);
set_fs(fs);
return ret;
-
}
-static void lustre_mark_info_dirty(struct lustre_mem_dqinfo *info)
+void lustre_mark_info_dirty(struct lustre_mem_dqinfo *info)
{
set_bit(DQF_INFO_DIRTY_B, &info->dqi_flags);
}
-#define lustre_info_dirty(info) test_bit(DQF_INFO_DIRTY_B, &(info)->dqi_flags)
-
-/* Remove empty block from list and return it */
-static int get_free_dqblk(struct file *filp, struct lustre_mem_dqinfo *info)
+/**
+ * Remove empty block from list and return it
+ */
+int get_free_dqblk(struct file *filp, struct lustre_mem_dqinfo *info)
{
dqbuf_t buf = getdqbuf();
struct lustre_disk_dqdbheader *dh =
info->dqi_free_blk = le32_to_cpu(dh->dqdh_next_free);
} else {
memset(buf, 0, LUSTRE_DQBLKSIZE);
- if ((ret = write_blk(filp, info->dqi_blocks, buf)) < 0) /* Assure block allocation... */
+ /* Assure block allocation... */
+ if ((ret = write_blk(filp, info->dqi_blocks, buf)) < 0)
goto out_buf;
blk = info->dqi_blocks++;
}
return ret;
}
-/* Insert empty block to the list */
-static int put_free_dqblk(struct file *filp, struct lustre_mem_dqinfo *info,
- dqbuf_t buf, uint blk)
+/**
+ * Insert empty block to the list
+ */
+int put_free_dqblk(struct file *filp, struct lustre_mem_dqinfo *info,
+ dqbuf_t buf, uint blk)
{
struct lustre_disk_dqdbheader *dh =
(struct lustre_disk_dqdbheader *)buf;
return 0;
}
-/* Remove given block from the list of blocks with free entries */
-static int remove_free_dqentry(struct file *filp,
- struct lustre_mem_dqinfo *info, dqbuf_t buf,
- uint blk)
+/**
+ * Remove given block from the list of blocks with free entries
+ */
+int remove_free_dqentry(struct file *filp,
+ struct lustre_mem_dqinfo *info, dqbuf_t buf,
+ uint blk)
{
dqbuf_t tmpbuf = getdqbuf();
struct lustre_disk_dqdbheader *dh =
}
freedqbuf(tmpbuf);
dh->dqdh_next_free = dh->dqdh_prev_free = cpu_to_le32(0);
- if (write_blk(filp, blk, buf) < 0) /* No matter whether write succeeds block is out of list */
- printk(KERN_ERR
+ if (write_blk(filp, blk, buf) < 0)
+ /* No matter whether write succeeds block is out of list */
+ CDEBUG(D_ERROR,
"VFS: Can't write block (%u) with free entries.\n", blk);
return 0;
out_buf:
return err;
}
-/* Insert given block to the beginning of list with free entries */
-static int insert_free_dqentry(struct file *filp,
- struct lustre_mem_dqinfo *info, dqbuf_t buf,
- uint blk)
+/**
+ * Insert given block to the beginning of list with free entries
+ */
+int insert_free_dqentry(struct file *filp,
+ struct lustre_mem_dqinfo *info, dqbuf_t buf,
+ uint blk)
{
dqbuf_t tmpbuf = getdqbuf();
struct lustre_disk_dqdbheader *dh =
return err;
}
-/* Find space for dquot */
-static uint find_free_dqentry(struct lustre_dquot *dquot, int *err)
+
+
+/**
+ * Find space for dquot
+ */
+static uint find_free_dqentry(struct lustre_dquot *dquot, int *err,
+ lustre_quota_version_t version)
{
struct lustre_quota_info *lqi = dquot->dq_info;
struct file *filp = lqi->qi_files[dquot->dq_type];
struct lustre_mem_dqinfo *info = &lqi->qi_info[dquot->dq_type];
uint blk, i;
struct lustre_disk_dqdbheader *dh;
- struct lustre_disk_dqblk *ddquot;
- struct lustre_disk_dqblk fakedquot;
+ void *ddquot;
+ int dqblk_sz = lustre_disk_dqblk_sz[version];
+ int dqstrinblk = lustre_dqstrinblk[version];
dqbuf_t buf;
*err = 0;
return 0;
}
dh = (struct lustre_disk_dqdbheader *)buf;
- ddquot = GETENTRIES(buf);
+ ddquot = GETENTRIES(buf, version);
if (info->dqi_free_entry) {
blk = info->dqi_free_entry;
if ((*err = read_blk(filp, blk, buf)) < 0)
return 0;
}
memset(buf, 0, LUSTRE_DQBLKSIZE);
- info->dqi_free_entry = blk; /* This is enough as block is already zeroed and entry list is empty... */
+ info->dqi_free_entry = blk; /* This is enough as block is
+ already zeroed and entry list
+ is empty... */
lustre_mark_info_dirty(info);
}
- if (le16_to_cpu(dh->dqdh_entries) + 1 >= LUSTRE_DQSTRINBLK) /* Block will be full? */
+
+ /* Will block be full */
+ if (le16_to_cpu(dh->dqdh_entries) + 1 >= dqstrinblk)
if ((*err = remove_free_dqentry(filp, info, buf, blk)) < 0) {
- printk(KERN_ERR
- "VFS: find_free_dqentry(): Can't remove block (%u) from entry free list.\n",
- blk);
+ CDEBUG(D_ERROR,
+ "VFS: find_free_dqentry(): Can't remove block "
+ "(%u) from entry free list.\n", blk);
goto out_buf;
}
dh->dqdh_entries = cpu_to_le16(le16_to_cpu(dh->dqdh_entries) + 1);
- memset(&fakedquot, 0, sizeof(struct lustre_disk_dqblk));
/* Find free structure in block */
- for (i = 0; i < LUSTRE_DQSTRINBLK &&
- memcmp(&fakedquot, ddquot + i, sizeof(fakedquot)); i++) ;
-
- if (i == LUSTRE_DQSTRINBLK) {
- printk(KERN_ERR
- "VFS: find_free_dqentry(): Data block full but it shouldn't.\n");
+ for (i = 0; i < dqstrinblk &&
+ memcmp((char *)&emptydquot[version],
+ (char *)ddquot + i * dqblk_sz, dqblk_sz);
+ i++);
+
+ if (i == dqstrinblk) {
+ CDEBUG(D_ERROR,
+ "VFS: find_free_dqentry(): Data block full but it "
+ "shouldn't.\n");
*err = -EIO;
goto out_buf;
}
if ((*err = write_blk(filp, blk, buf)) < 0) {
- printk(KERN_ERR
- "VFS: find_free_dqentry(): Can't write quota data block %u.\n",
- blk);
+ CDEBUG(D_ERROR,
+ "VFS: find_free_dqentry(): Can't write quota data "
+ "block %u.\n", blk);
goto out_buf;
}
dquot->dq_off =
(blk << LUSTRE_DQBLKSIZE_BITS) +
sizeof(struct lustre_disk_dqdbheader) +
- i * sizeof(struct lustre_disk_dqblk);
+ i * dqblk_sz;
freedqbuf(buf);
return blk;
out_buf:
return 0;
}
-/* Insert reference to structure into the trie */
-static int do_insert_tree(struct lustre_dquot *dquot, uint * treeblk, int depth)
+/**
+ * Insert reference to structure into the trie
+ */
+static int do_insert_tree(struct lustre_dquot *dquot, uint * treeblk, int depth,
+ lustre_quota_version_t version)
{
struct lustre_quota_info *lqi = dquot->dq_info;
struct file *filp = lqi->qi_files[dquot->dq_type];
newact = 1;
} else {
if ((ret = read_blk(filp, *treeblk, buf)) < 0) {
- printk(KERN_ERR
+ CDEBUG(D_ERROR,
"VFS: Can't read tree quota block %u.\n",
*treeblk);
goto out_buf;
if (depth == LUSTRE_DQTREEDEPTH - 1) {
if (newblk) {
- printk(KERN_ERR
- "VFS: Inserting already present quota entry (block %u).\n",
+ CDEBUG(D_ERROR,
+ "VFS: Inserting already present quota entry "
+ "(block %u).\n",
ref[GETIDINDEX(dquot->dq_id, depth)]);
ret = -EIO;
goto out_buf;
}
- newblk = find_free_dqentry(dquot, &ret);
+ newblk = find_free_dqentry(dquot, &ret, version);
} else
- ret = do_insert_tree(dquot, &newblk, depth + 1);
+ ret = do_insert_tree(dquot, &newblk, depth + 1, version);
if (newson && ret >= 0) {
ref[GETIDINDEX(dquot->dq_id, depth)] = cpu_to_le32(newblk);
ret = write_blk(filp, *treeblk, buf);
return ret;
}
-/* Wrapper for inserting quota structure into tree */
-static inline int dq_insert_tree(struct lustre_dquot *dquot)
+/**
+ * Wrapper for inserting quota structure into tree
+ */
+static inline int dq_insert_tree(struct lustre_dquot *dquot,
+ lustre_quota_version_t version)
{
int tmp = LUSTRE_DQTREEOFF;
- return do_insert_tree(dquot, &tmp, 0);
+ return do_insert_tree(dquot, &tmp, 0, version);
}
-/*
- * We don't have to be afraid of deadlocks as we never have quotas on quota files...
+/**
+ * We don't have to be afraid of deadlocks as we never have quotas on
+ * quota files...
*/
-static int lustre_write_dquot(struct lustre_dquot *dquot)
+static int lustre_write_dquot(struct lustre_dquot *dquot,
+ lustre_quota_version_t version)
{
int type = dquot->dq_type;
struct file *filp;
mm_segment_t fs;
loff_t offset;
ssize_t ret;
- struct lustre_disk_dqblk ddquot, empty;
+ int dqblk_sz = lustre_disk_dqblk_sz[version];
+ struct lustre_disk_dqblk_v2 ddquot;
+
+ ret = mem2diskdqb(&ddquot, &dquot->dq_dqb, dquot->dq_id, version);
+ if (ret < 0)
+ return ret;
if (!dquot->dq_off)
- if ((ret = dq_insert_tree(dquot)) < 0) {
- printk(KERN_ERR
- "VFS: Error %Zd occurred while creating quota.\n",
- ret);
+ if ((ret = dq_insert_tree(dquot, version)) < 0) {
+ CDEBUG(D_ERROR,
+ "VFS: Error %Zd occurred while creating "
+ "quota.\n", ret);
return ret;
}
filp = dquot->dq_info->qi_files[type];
offset = dquot->dq_off;
- mem2diskdqb(&ddquot, &dquot->dq_dqb, dquot->dq_id);
- /* Argh... We may need to write structure full of zeroes but that would be
- * treated as an empty place by the rest of the code. Format change would
- * be definitely cleaner but the problems probably are not worth it */
- memset(&empty, 0, sizeof(struct lustre_disk_dqblk));
- if (!memcmp(&empty, &ddquot, sizeof(struct lustre_disk_dqblk)))
+ /* Argh... We may need to write structure full of zeroes but that would
+ * be treated as an empty place by the rest of the code. Format change
+ * would be definitely cleaner but the problems probably are not worth
+ * it */
+ if (!memcmp((char *)&emptydquot[version], (char *)&ddquot, dqblk_sz))
ddquot.dqb_itime = cpu_to_le64(1);
fs = get_fs();
set_fs(KERNEL_DS);
ret = filp->f_op->write(filp, (char *)&ddquot,
- sizeof(struct lustre_disk_dqblk), &offset);
+ dqblk_sz, &offset);
set_fs(fs);
- if (ret != sizeof(struct lustre_disk_dqblk)) {
- printk(KERN_WARNING "VFS: dquota write failed on dev %s\n",
+ if (ret != dqblk_sz) {
+ CDEBUG(D_WARNING, "VFS: dquota write failed on dev %s\n",
filp->f_dentry->d_sb->s_id);
if (ret >= 0)
ret = -ENOSPC;
return ret;
}
-/* Free dquot entry in data block */
-static int free_dqentry(struct lustre_dquot *dquot, uint blk)
+/**
+ * Free dquot entry in data block
+ */
+static int free_dqentry(struct lustre_dquot *dquot, uint blk,
+ lustre_quota_version_t version)
{
struct file *filp = dquot->dq_info->qi_files[dquot->dq_type];
struct lustre_mem_dqinfo *info =
&dquot->dq_info->qi_info[dquot->dq_type];
struct lustre_disk_dqdbheader *dh;
dqbuf_t buf = getdqbuf();
+ int dqstrinblk = lustre_dqstrinblk[version];
int ret = 0;
if (!buf)
return -ENOMEM;
if (dquot->dq_off >> LUSTRE_DQBLKSIZE_BITS != blk) {
- printk(KERN_ERR
- "VFS: Quota structure has offset to other block (%u) than it should (%u).\n",
+ CDEBUG(D_ERROR,
+ "VFS: Quota structure has offset to other block (%u) "
+ "than it should (%u).\n",
blk, (uint) (dquot->dq_off >> LUSTRE_DQBLKSIZE_BITS));
goto out_buf;
}
if ((ret = read_blk(filp, blk, buf)) < 0) {
- printk(KERN_ERR "VFS: Can't read quota data block %u\n", blk);
+ CDEBUG(D_ERROR, "VFS: Can't read quota data block %u\n", blk);
goto out_buf;
}
dh = (struct lustre_disk_dqdbheader *)buf;
if (!le16_to_cpu(dh->dqdh_entries)) { /* Block got free? */
if ((ret = remove_free_dqentry(filp, info, buf, blk)) < 0 ||
(ret = put_free_dqblk(filp, info, buf, blk)) < 0) {
- printk(KERN_ERR
- "VFS: Can't move quota data block (%u) to free list.\n",
- blk);
+ CDEBUG(D_ERROR,
+ "VFS: Can't move quota data block (%u) to free "
+ "list.\n", blk);
goto out_buf;
}
} else {
- memset(buf +
- (dquot->dq_off & ((1 << LUSTRE_DQBLKSIZE_BITS) - 1)), 0,
- sizeof(struct lustre_disk_dqblk));
- if (le16_to_cpu(dh->dqdh_entries) == LUSTRE_DQSTRINBLK - 1) {
+ memset(buf + (dquot->dq_off & ((1<<LUSTRE_DQBLKSIZE_BITS) - 1)),
+ 0, lustre_disk_dqblk_sz[version]);
+ if (le16_to_cpu(dh->dqdh_entries) == dqstrinblk - 1) {
/* Insert will write block itself */
if ((ret =
insert_free_dqentry(filp, info, buf, blk)) < 0) {
- printk(KERN_ERR
- "VFS: Can't insert quota data block (%u) to free entry list.\n",
- blk);
+ CDEBUG(D_ERROR,
+ "VFS: Can't insert quota data block "
+ "(%u) to free entry list.\n", blk);
goto out_buf;
}
} else if ((ret = write_blk(filp, blk, buf)) < 0) {
- printk(KERN_ERR
+ CDEBUG(D_ERROR,
"VFS: Can't write quota data block %u\n", blk);
goto out_buf;
}
return ret;
}
-/* Remove reference to dquot from tree */
-static int remove_tree(struct lustre_dquot *dquot, uint * blk, int depth)
+/**
+ * Remove reference to dquot from tree
+ */
+static int remove_tree(struct lustre_dquot *dquot, uint * blk, int depth,
+ lustre_quota_version_t version)
{
struct file *filp = dquot->dq_info->qi_files[dquot->dq_type];
struct lustre_mem_dqinfo *info =
if (!buf)
return -ENOMEM;
if ((ret = read_blk(filp, *blk, buf)) < 0) {
- printk(KERN_ERR "VFS: Can't read quota data block %u\n", *blk);
+ CDEBUG(D_ERROR, "VFS: Can't read quota data block %u\n", *blk);
goto out_buf;
}
newblk = le32_to_cpu(ref[GETIDINDEX(dquot->dq_id, depth)]);
if (depth == LUSTRE_DQTREEDEPTH - 1) {
- ret = free_dqentry(dquot, newblk);
+ ret = free_dqentry(dquot, newblk, version);
newblk = 0;
} else
- ret = remove_tree(dquot, &newblk, depth + 1);
+ ret = remove_tree(dquot, &newblk, depth + 1, version);
if (ret >= 0 && !newblk) {
int i;
ref[GETIDINDEX(dquot->dq_id, depth)] = cpu_to_le32(0);
- for (i = 0; i < LUSTRE_DQBLKSIZE && !buf[i]; i++) ; /* Block got empty? */
+ for (i = 0; i < LUSTRE_DQBLKSIZE && !buf[i]; i++)
+ /* Block got empty? */ ;
/* don't put the root block into free blk list! */
if (i == LUSTRE_DQBLKSIZE && *blk != LUSTRE_DQTREEOFF) {
put_free_dqblk(filp, info, buf, *blk);
*blk = 0;
} else if ((ret = write_blk(filp, *blk, buf)) < 0)
- printk(KERN_ERR
+ CDEBUG(D_ERROR,
"VFS: Can't write quota tree block %u.\n", *blk);
}
out_buf:
return ret;
}
-/* Delete dquot from tree */
-static int lustre_delete_dquot(struct lustre_dquot *dquot)
+/**
+ * Delete dquot from tree
+ */
+static int lustre_delete_dquot(struct lustre_dquot *dquot,
+ lustre_quota_version_t version)
{
uint tmp = LUSTRE_DQTREEOFF;
if (!dquot->dq_off) /* Even not allocated? */
return 0;
- return remove_tree(dquot, &tmp, 0);
+ return remove_tree(dquot, &tmp, 0, version);
}
-/* Find entry in block */
-static loff_t find_block_dqentry(struct lustre_dquot *dquot, uint blk)
+/**
+ * Find entry in block
+ */
+static loff_t find_block_dqentry(struct lustre_dquot *dquot, uint blk,
+ lustre_quota_version_t version)
{
struct file *filp = dquot->dq_info->qi_files[dquot->dq_type];
dqbuf_t buf = getdqbuf();
loff_t ret = 0;
int i;
- struct lustre_disk_dqblk *ddquot = GETENTRIES(buf);
+ struct lustre_disk_dqblk_v2 *ddquot =
+ (struct lustre_disk_dqblk_v2 *)GETENTRIES(buf, version);
+ int dqblk_sz = lustre_disk_dqblk_sz[version];
+ int dqstrinblk = lustre_dqstrinblk[version];
+
+ LASSERT(version == LUSTRE_QUOTA_V2);
if (!buf)
return -ENOMEM;
if ((ret = read_blk(filp, blk, buf)) < 0) {
- printk(KERN_ERR "VFS: Can't read quota tree block %u.\n", blk);
+ CDEBUG(D_ERROR, "VFS: Can't read quota tree block %u.\n", blk);
goto out_buf;
}
if (dquot->dq_id)
- for (i = 0;
- i < LUSTRE_DQSTRINBLK
- && le32_to_cpu(ddquot[i].dqb_id) != dquot->dq_id; i++) ;
+ for (i = 0; i < dqstrinblk &&
+ le32_to_cpu(ddquot[i].dqb_id) != dquot->dq_id;
+ i++) ;
else { /* ID 0 as a bit more complicated searching... */
- struct lustre_disk_dqblk fakedquot;
-
- memset(&fakedquot, 0, sizeof(struct lustre_disk_dqblk));
- for (i = 0; i < LUSTRE_DQSTRINBLK; i++)
+ for (i = 0; i < dqstrinblk; i++)
if (!le32_to_cpu(ddquot[i].dqb_id)
- && memcmp(&fakedquot, ddquot + i,
- sizeof(struct lustre_disk_dqblk)))
+ && memcmp((char *)&emptydquot[version],
+ (char *)&ddquot[i], dqblk_sz))
break;
}
- if (i == LUSTRE_DQSTRINBLK) {
- printk(KERN_ERR
+ if (i == dqstrinblk) {
+ CDEBUG(D_ERROR,
"VFS: Quota for id %u referenced but not present.\n",
dquot->dq_id);
ret = -EIO;
ret =
(blk << LUSTRE_DQBLKSIZE_BITS) +
sizeof(struct lustre_disk_dqdbheader) +
- i * sizeof(struct lustre_disk_dqblk);
+ i * dqblk_sz;
out_buf:
freedqbuf(buf);
return ret;
}
-/* Find entry for given id in the tree */
-static loff_t find_tree_dqentry(struct lustre_dquot *dquot, uint blk, int depth)
+/**
+ * Find entry for given id in the tree
+ */
+static loff_t find_tree_dqentry(struct lustre_dquot *dquot, uint blk, int depth,
+ lustre_quota_version_t version)
{
struct file *filp = dquot->dq_info->qi_files[dquot->dq_type];
dqbuf_t buf = getdqbuf();
if (!buf)
return -ENOMEM;
if ((ret = read_blk(filp, blk, buf)) < 0) {
- printk(KERN_ERR "VFS: Can't read quota tree block %u.\n", blk);
+ CDEBUG(D_ERROR, "VFS: Can't read quota tree block %u.\n", blk);
goto out_buf;
}
ret = 0;
if (!blk) /* No reference? */
goto out_buf;
if (depth < LUSTRE_DQTREEDEPTH - 1)
- ret = find_tree_dqentry(dquot, blk, depth + 1);
+ ret = find_tree_dqentry(dquot, blk, depth + 1, version);
else
- ret = find_block_dqentry(dquot, blk);
+ ret = find_block_dqentry(dquot, blk, version);
out_buf:
freedqbuf(buf);
return ret;
}
-/* Find entry for given id in the tree - wrapper function */
-static inline loff_t find_dqentry(struct lustre_dquot *dquot)
+/**
+ * Find entry for given id in the tree - wrapper function
+ */
+static inline loff_t find_dqentry(struct lustre_dquot *dquot,
+ lustre_quota_version_t version)
{
- return find_tree_dqentry(dquot, LUSTRE_DQTREEOFF, 0);
+ return find_tree_dqentry(dquot, LUSTRE_DQTREEOFF, 0, version);
}
int lustre_read_dquot(struct lustre_dquot *dquot)
struct file *filp;
mm_segment_t fs;
loff_t offset;
- struct lustre_disk_dqblk ddquot, empty;
- int ret = 0;
+ int ret = 0, dqblk_sz;
+ lustre_quota_version_t version;
/* Invalidated quota? */
if (!dquot->dq_info || !(filp = dquot->dq_info->qi_files[type])) {
- printk(KERN_ERR "VFS: Quota invalidated while reading!\n");
- return -EIO;
+ CDEBUG(D_ERROR, "VFS: Quota invalidated while reading!\n");
+ return -ESRCH;
}
- offset = find_dqentry(dquot);
+ version = dquot->dq_info->qi_version;
+ LASSERT(version == LUSTRE_QUOTA_V2);
+ dqblk_sz = lustre_disk_dqblk_sz[version];
+
+ offset = find_dqentry(dquot, version);
if (offset <= 0) { /* Entry not present? */
if (offset < 0)
- printk(KERN_ERR
+ CDEBUG(D_ERROR,
"VFS: Can't read quota structure for id %u.\n",
dquot->dq_id);
dquot->dq_off = 0;
set_bit(DQ_FAKE_B, &dquot->dq_flags);
- memset(&dquot->dq_dqb, 0, sizeof(struct mem_dqblk));
+ memset(&dquot->dq_dqb, 0, sizeof(struct lustre_mem_dqblk));
ret = offset;
} else {
+ struct lustre_disk_dqblk_v2 ddquot;
+
dquot->dq_off = offset;
fs = get_fs();
set_fs(KERNEL_DS);
if ((ret = filp->f_op->read(filp, (char *)&ddquot,
- sizeof(struct lustre_disk_dqblk),
- &offset)) !=
- sizeof(struct lustre_disk_dqblk)) {
+ dqblk_sz, &offset)) != dqblk_sz) {
if (ret >= 0)
ret = -EIO;
- printk(KERN_ERR
- "VFS: Error while reading quota structure for id %u.\n",
- dquot->dq_id);
- memset(&ddquot, 0, sizeof(struct lustre_disk_dqblk));
+ CDEBUG(D_ERROR,
+ "VFS: Error while reading quota structure for id "
+ "%u.\n", dquot->dq_id);
+ memset((char *)&ddquot, 0, dqblk_sz);
} else {
ret = 0;
/* We need to escape back all-zero structure */
- memset(&empty, 0, sizeof(struct lustre_disk_dqblk));
- empty.dqb_itime = cpu_to_le64(1);
- if (!memcmp(&empty, &ddquot,
- sizeof(struct lustre_disk_dqblk)))
- ddquot.dqb_itime = 0;
+ if (!memcmp((char *)&fakedquot[version],
+ (char *)&ddquot, dqblk_sz))
+ ddquot.dqb_itime = cpu_to_le64(0);
}
set_fs(fs);
- disk2memdqb(&dquot->dq_dqb, &ddquot);
+ disk2memdqb(&dquot->dq_dqb, &ddquot, version);
}
return ret;
}
-/* Commit changes of dquot to disk - it might also mean deleting it when quota became fake */
+/**
+ * Commit changes of dquot to disk - it might also mean deleting
+ * it when quota became fake.
+ */
int lustre_commit_dquot(struct lustre_dquot *dquot)
{
int rc = 0;
+ lustre_quota_version_t version = dquot->dq_info->qi_version;
+
/* always clear the flag so we don't loop on an IO error... */
clear_bit(DQ_MOD_B, &dquot->dq_flags);
* over all cluster, so keep the fake dquot entry on disk is
* meaningless, just remove it */
if (test_bit(DQ_FAKE_B, &dquot->dq_flags))
- rc = lustre_delete_dquot(dquot);
+ rc = lustre_delete_dquot(dquot, version);
else
- rc = lustre_write_dquot(dquot);
+ rc = lustre_write_dquot(dquot, version);
if (rc < 0)
return rc;
return rc;
}
-/* We need to export this function to initialize quotafile, because we haven't
- * user level check utility */
-int lustre_init_quota_info(struct lustre_quota_info *lqi, int type)
+int lustre_init_quota_header(struct lustre_quota_info *lqi, int type,
+ int fakemagics)
{
- struct lustre_mem_dqinfo *dqinfo = &lqi->qi_info[type];
+ static const uint quota_magics[] = LUSTRE_INITQMAGICS;
+ static const uint fake_magics[] = LUSTRE_BADQMAGICS;
+ const uint* quota_versions = lustre_initqversions[lqi->qi_version];
struct lustre_disk_dqheader dqhead;
- struct file *fp = lqi->qi_files[type];
ssize_t size;
loff_t offset = 0;
+ struct file *fp = lqi->qi_files[type];
int rc = 0;
- static const uint quota_magics[] = LUSTRE_INITQMAGICS;
- static const uint quota_versions[] = LUSTRE_INITQVERSIONS;
/* write quotafile header */
- dqhead.dqh_magic = cpu_to_le32(quota_magics[type]);
+ dqhead.dqh_magic = cpu_to_le32(fakemagics ?
+ fake_magics[type] : quota_magics[type]);
dqhead.dqh_version = cpu_to_le32(quota_versions[type]);
size = fp->f_op->write(fp, (char *)&dqhead,
sizeof(struct lustre_disk_dqheader), &offset);
if (size != sizeof(struct lustre_disk_dqheader)) {
- printk(KERN_ERR "error writing quoafile header (rc:%d)\n", rc);
+ CDEBUG(D_ERROR, "error writing quoafile header (rc:%d)\n", rc);
rc = size;
}
+
+ return rc;
+}
+
+/**
+ * We need to export this function to initialize quotafile, because we haven't
+ * user level check utility
+ */
+int lustre_init_quota_info_generic(struct lustre_quota_info *lqi, int type,
+ int fakemagics)
+{
+ struct lustre_mem_dqinfo *dqinfo = &lqi->qi_info[type];
+ int rc;
+
+ rc = lustre_init_quota_header(lqi, type, fakemagics);
if (rc)
return rc;
return lustre_write_quota_info(lqi, type);
}
-struct dqblk {
- struct list_head link;
- uint blk;
-};
+int lustre_init_quota_info(struct lustre_quota_info *lqi, int type)
+{
+ return lustre_init_quota_info_generic(lqi, type, 0);
+}
-static ssize_t quota_read(struct file *file, struct inode *inode, int type,
- uint blk, dqbuf_t buf)
+ssize_t quota_read(struct file *file, struct inode *inode, int type,
+ uint blk, dqbuf_t buf)
{
if (file) {
return read_blk(file, blk, buf);
if (!buf)
return -ENOMEM;
if ((ret = quota_read(filp, inode, type, blk, buf)) < 0) {
- printk(KERN_ERR "VFS: Can't read quota tree block %u.\n", blk);
+ CDEBUG(D_ERROR, "VFS: Can't read quota tree block %u.\n", blk);
goto out_buf;
}
ret = 0;
return ret;
}
-static int walk_tree_dqentry(struct file *filp, struct inode *inode, int type,
- uint blk, int depth, struct list_head *list)
+int walk_tree_dqentry(struct file *filp, struct inode *inode, int type,
+ uint blk, int depth, struct list_head *list)
{
dqbuf_t buf = getdqbuf();
loff_t ret = 0;
if (!buf)
return -ENOMEM;
if ((ret = quota_read(filp, inode, type, blk, buf)) < 0) {
- printk(KERN_ERR "VFS: Can't read quota tree block %u.\n", blk);
+ CDEBUG(D_ERROR, "VFS: Can't read quota tree block %u.\n", blk);
goto out_buf;
}
ret = 0;
continue;
if (depth < LUSTRE_DQTREEDEPTH - 1)
- ret = walk_tree_dqentry(filp, inode, type, blk,
+ ret = walk_tree_dqentry(filp, inode, type, blk,
depth + 1, list);
else
ret = walk_block_dqentry(filp, inode, type, blk, list);
return ret;
}
-/* Walk through the quota file (v2 format) to get all ids with quota limit */
+/**
+ * Walk through the quota file (v2 format) to get all ids with quota limit
+ */
int lustre_get_qids(struct file *fp, struct inode *inode, int type,
struct list_head *list)
{
struct list_head blk_list;
struct dqblk *blk_item, *tmp;
dqbuf_t buf = NULL;
- struct lustre_disk_dqblk *ddquot;
+ struct lustre_disk_dqblk_v2 *ddquot;
int rc;
+ lustre_quota_version_t version;
- if (!check_quota_file(fp, inode, type)) {
- printk(KERN_ERR "unknown quota file format!\n");
- return -EINVAL;
+ ENTRY;
+
+ LASSERT(ergo(fp == NULL, inode != NULL));
+
+ if (check_quota_file(fp, inode, type, LUSTRE_QUOTA_V2) == 0)
+ version = LUSTRE_QUOTA_V2;
+ else {
+ CDEBUG(D_ERROR, "unknown quota file format!\n");
+ RETURN(-EINVAL);
}
+
if (!list_empty(list)) {
- printk(KERN_ERR "not empty list\n");
- return -EINVAL;
+ CDEBUG(D_ERROR, "not empty list\n");
+ RETURN(-EINVAL);
}
INIT_LIST_HEAD(&blk_list);
rc = walk_tree_dqentry(fp, inode, type, LUSTRE_DQTREEOFF, 0, &blk_list);
if (rc) {
- printk(KERN_ERR "walk through quota file failed!(%d)\n", rc);
- goto out_free;
+ CDEBUG(D_ERROR, "walk through quota file failed!(%d)\n", rc);
+ GOTO(out_free, rc);
}
if (list_empty(&blk_list))
- return 0;
+ RETURN(0);
buf = getdqbuf();
if (!buf)
- return -ENOMEM;
- ddquot = GETENTRIES(buf);
+ RETURN(-ENOMEM);
+ ddquot = (struct lustre_disk_dqblk_v2 *)GETENTRIES(buf, version);
list_for_each_entry(blk_item, &blk_list, link) {
loff_t ret = 0;
- int i;
- struct lustre_disk_dqblk fakedquot;
+ int i, dqblk_sz = lustre_disk_dqblk_sz[version];
memset(buf, 0, LUSTRE_DQBLKSIZE);
if ((ret = quota_read(fp, inode, type, blk_item->blk, buf))<0) {
- printk(KERN_ERR
+ CDEBUG(D_ERROR,
"VFS: Can't read quota tree block %u.\n",
blk_item->blk);
- rc = ret;
- goto out_free;
+ GOTO(out_free, rc = ret);
}
- memset(&fakedquot, 0, sizeof(struct lustre_disk_dqblk));
- for (i = 0; i < LUSTRE_DQSTRINBLK; i++) {
+ for (i = 0; i < lustre_dqstrinblk[version]; i++) {
struct dquot_id *dqid;
/* skip empty entry */
- if (!memcmp
- (&fakedquot, ddquot + i,
- sizeof(struct lustre_disk_dqblk)))
+ if (!memcmp((char *)&emptydquot[version],
+ (char *)&ddquot[i], dqblk_sz))
continue;
- dqid = kmalloc(sizeof(*dqid), GFP_NOFS);
- if (!dqid) {
- rc = -ENOMEM;
- goto out_free;
- }
- dqid->di_id = le32_to_cpu(ddquot[i].dqb_id);
+ OBD_ALLOC_GFP(dqid, sizeof(*dqid), GFP_NOFS);
+ if (!dqid)
+ GOTO(out_free, rc = -ENOMEM);
+
+ dqid->di_id = le32_to_cpu(ddquot[i].dqb_id);
+ dqid->di_flag = le64_to_cpu(ddquot[i].dqb_ihardlimit) ?
+ QI_SET : 0;
+ dqid->di_flag |= le64_to_cpu(ddquot[i].dqb_bhardlimit) ?
+ QB_SET : 0;
+
INIT_LIST_HEAD(&dqid->di_link);
list_add(&dqid->di_link, list);
}
}
if (buf)
freedqbuf(buf);
- return rc;
+
+ RETURN(rc);
}
-EXPORT_SYMBOL(lustre_check_quota_file);
+
EXPORT_SYMBOL(lustre_read_quota_info);
EXPORT_SYMBOL(lustre_write_quota_info);
+EXPORT_SYMBOL(lustre_check_quota_file);
EXPORT_SYMBOL(lustre_read_dquot);
EXPORT_SYMBOL(lustre_commit_dquot);
EXPORT_SYMBOL(lustre_init_quota_info);
EXPORT_SYMBOL(lustre_get_qids);
+#endif
git://git.whamcloud.com / fs / lustre-release.git / blobdiff