Clean up codes for adding new quota type

Project quota related fields are reserved in Linux kernel.
As a preparation for it, this patch cleans up quota codes
of e2fsprogs so as to make it easier to add new quota type(s).

Signed-off-by: Li Xi <lixi@ddn.com>
Signed-off-by: Wang Shilong <wshilong@ddn.com>
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
This commit is contained in:
Li Xi 2016-01-12 17:56:44 +09:00 committed by Theodore Ts'o
parent 0f26747167
commit 2d2d799c72
12 changed files with 347 additions and 211 deletions

View File

@ -42,7 +42,7 @@ static int load_quota_ctx(char *progname)
if (current_qctx)
return 0;
retval = quota_init_context(&current_qctx, current_fs, -1);
retval = quota_init_context(&current_qctx, current_fs, QUOTA_ALL_BIT);
if (retval) {
com_err(current_fs->device_name, retval,
"while trying to load quota information");

View File

@ -40,6 +40,7 @@
#include "debugfs.h"
#include "uuid/uuid.h"
#include "e2p/e2p.h"
#include "support/quotaio.h"
static struct ext2_super_block set_sb;
static struct ext2_inode_large set_inode;

View File

@ -954,6 +954,41 @@ out:
}
}
/*
* Check if the passed ino is one of the used superblock quota inodes.
*
* Before the quota inodes were journaled, older superblock quota inodes
* were just regular files in the filesystem and not reserved inodes. This
* checks if the passed ino is one of the s_*_quota_inum superblock fields,
* which may not always be the same as the EXT4_*_QUOTA_INO fields.
*/
static int quota_inum_is_super(struct ext2_super_block *sb, ext2_ino_t ino)
{
enum quota_type qtype;
for (qtype = 0; qtype < MAXQUOTAS; qtype++)
if (*quota_sb_inump(sb, qtype) == ino)
return 1;
return 0;
}
/*
* Check if the passed ino is one of the reserved quota inodes.
* This checks if the inode number is one of the reserved EXT4_*_QUOTA_INO
* inodes. These inodes may or may not be in use by the quota feature.
*/
static int quota_inum_is_reserved(ext2_filsys fs, ext2_ino_t ino)
{
enum quota_type qtype;
for (qtype = 0; qtype < MAXQUOTAS; qtype++)
if (quota_type2inum(qtype, fs->super) == ino)
return 1;
return 0;
}
void e2fsck_pass1(e2fsck_t ctx)
{
int i;
@ -1502,12 +1537,10 @@ void e2fsck_pass1(e2fsck_t ctx)
inode_size, "pass1");
failed_csum = 0;
}
} else if ((ino == EXT4_USR_QUOTA_INO) ||
(ino == EXT4_GRP_QUOTA_INO)) {
} else if (quota_inum_is_reserved(fs, ino)) {
ext2fs_mark_inode_bitmap2(ctx->inode_used_map, ino);
if (ext2fs_has_feature_quota(fs->super) &&
((fs->super->s_usr_quota_inum == ino) ||
(fs->super->s_grp_quota_inum == ino))) {
quota_inum_is_super(fs->super, ino)) {
if (!LINUX_S_ISREG(inode->i_mode) &&
fix_problem(ctx, PR_1_QUOTA_BAD_MODE,
&pctx)) {

View File

@ -17,7 +17,7 @@
#include "problem.h"
static void move_quota_inode(ext2_filsys fs, ext2_ino_t from_ino,
ext2_ino_t to_ino, int qtype)
ext2_ino_t to_ino, enum quota_type qtype)
{
struct ext2_inode inode;
errcode_t retval;
@ -61,6 +61,8 @@ void e2fsck_hide_quota(e2fsck_t ctx)
struct ext2_super_block *sb = ctx->fs->super;
struct problem_context pctx;
ext2_filsys fs = ctx->fs;
enum quota_type qtype;
ext2_ino_t quota_ino;
clear_problem_context(&pctx);
@ -68,22 +70,14 @@ void e2fsck_hide_quota(e2fsck_t ctx)
!ext2fs_has_feature_quota(sb))
return;
pctx.ino = sb->s_usr_quota_inum;
if (sb->s_usr_quota_inum &&
(sb->s_usr_quota_inum != EXT4_USR_QUOTA_INO) &&
fix_problem(ctx, PR_0_HIDE_QUOTA, &pctx)) {
move_quota_inode(fs, sb->s_usr_quota_inum, EXT4_USR_QUOTA_INO,
USRQUOTA);
sb->s_usr_quota_inum = EXT4_USR_QUOTA_INO;
}
pctx.ino = sb->s_grp_quota_inum;
if (sb->s_grp_quota_inum &&
(sb->s_grp_quota_inum != EXT4_GRP_QUOTA_INO) &&
fix_problem(ctx, PR_0_HIDE_QUOTA, &pctx)) {
move_quota_inode(fs, sb->s_grp_quota_inum, EXT4_GRP_QUOTA_INO,
GRPQUOTA);
sb->s_grp_quota_inum = EXT4_GRP_QUOTA_INO;
for (qtype = 0; qtype < MAXQUOTAS; qtype++) {
pctx.ino = *quota_sb_inump(sb, qtype);
quota_ino = quota_type2inum(qtype, fs->super);
if (pctx.ino && (pctx.ino != quota_ino) &&
fix_problem(ctx, PR_0_HIDE_QUOTA, &pctx)) {
move_quota_inode(fs, pctx.ino, quota_ino, qtype);
*quota_sb_inump(sb, qtype) = quota_ino;
}
}
return;

View File

@ -1338,7 +1338,8 @@ int main (int argc, char *argv[])
int old_bitmaps;
__u32 features[3];
char *cp;
int qtype = -99; /* quota type */
unsigned int qtype_bits = 0;
enum quota_type qtype;
clear_problem_context(&pctx);
sigcatcher_setup();
@ -1778,13 +1779,12 @@ print_unsupp_features:
if (ext2fs_has_feature_quota(sb)) {
/* Quotas were enabled. Do quota accounting during fsck. */
if ((sb->s_usr_quota_inum && sb->s_grp_quota_inum) ||
(!sb->s_usr_quota_inum && !sb->s_grp_quota_inum))
qtype = -1;
else
qtype = sb->s_usr_quota_inum ? USRQUOTA : GRPQUOTA;
for (qtype = 0; qtype < MAXQUOTAS; qtype++) {
if (*quota_sb_inump(sb, qtype) != 0)
qtype_bits |= 1 << qtype;
}
quota_init_context(&ctx->qctx, ctx->fs, qtype);
quota_init_context(&ctx->qctx, ctx->fs, qtype_bits);
}
run_result = e2fsck_run(ctx);
@ -1826,18 +1826,18 @@ no_journal:
ctx->device_name : ctx->filesystem_name);
exit_value |= FSCK_CANCELED;
} else if (ctx->qctx && !ctx->invalid_bitmaps) {
int i, needs_writeout;
int needs_writeout;
for (i = 0; i < MAXQUOTAS; i++) {
if (qtype != -1 && qtype != i)
for (qtype = 0; qtype < MAXQUOTAS; qtype++) {
if (((1 << qtype) & qtype_bits) == 0)
continue;
needs_writeout = 0;
pctx.num = i;
retval = quota_compare_and_update(ctx->qctx, i,
pctx.num = qtype;
retval = quota_compare_and_update(ctx->qctx, qtype,
&needs_writeout);
if ((retval || needs_writeout) &&
fix_problem(ctx, PR_6_UPDATE_QUOTAS, &pctx))
quota_write_inode(ctx->qctx, i);
quota_write_inode(ctx->qctx, 1 << qtype);
}
quota_release_context(&ctx->qctx);
}

View File

@ -23,6 +23,7 @@
#include <time.h>
#include "e2p.h"
#include "support/quotaio.h"
static void print_user (unsigned short uid, FILE *f)
{
@ -206,11 +207,25 @@ static const char *checksum_type(__u8 type)
}
}
static const char *quota_prefix[MAXQUOTAS] = {
[USRQUOTA] = "User quota inode:",
[GRPQUOTA] = "Group quota inode:",
};
/**
* Convert type of quota to written representation
*/
static const char *quota_type2prefix(enum quota_type qtype)
{
return quota_prefix[qtype];
}
void list_super2(struct ext2_super_block * sb, FILE *f)
{
int inode_blocks_per_group;
char buf[80], *str;
time_t tm;
enum quota_type qtype;
inode_blocks_per_group = (((sb->s_inodes_per_group *
EXT2_INODE_SIZE(sb)) +
@ -434,12 +449,12 @@ void list_super2(struct ext2_super_block * sb, FILE *f)
fprintf(f, "MMP update interval: %u\n",
sb->s_mmp_update_interval);
}
if (sb->s_usr_quota_inum)
fprintf(f, "User quota inode: %u\n",
sb->s_usr_quota_inum);
if (sb->s_grp_quota_inum)
fprintf(f, "Group quota inode: %u\n",
sb->s_grp_quota_inum);
for (qtype = 0; qtype < MAXQUOTAS; qtype++) {
if (*quota_sb_inump(sb, qtype) != 0)
fprintf(f, "%-26s%u\n",
quota_type2prefix(qtype),
*quota_sb_inump(sb, qtype));
}
if (ext2fs_has_feature_metadata_csum(sb)) {
fprintf(f, "Checksum type: %s\n",

View File

@ -67,7 +67,7 @@ static void print_dquot(const char *desc EXT2FS_ATTR((unused)),
* Returns 0 if not able to find the quota file, otherwise returns its
* inode number.
*/
int quota_file_exists(ext2_filsys fs, int qtype)
int quota_file_exists(ext2_filsys fs, enum quota_type qtype)
{
char qf_name[256];
errcode_t ret;
@ -89,12 +89,11 @@ int quota_file_exists(ext2_filsys fs, int qtype)
/*
* Set the value for reserved quota inode number field in superblock.
*/
void quota_set_sb_inum(ext2_filsys fs, ext2_ino_t ino, int qtype)
void quota_set_sb_inum(ext2_filsys fs, ext2_ino_t ino, enum quota_type qtype)
{
ext2_ino_t *inump;
inump = (qtype == USRQUOTA) ? &fs->super->s_usr_quota_inum :
&fs->super->s_grp_quota_inum;
inump = quota_sb_inump(fs->super, qtype);
log_debug("setting quota ino in superblock: ino=%u, type=%d", ino,
qtype);
@ -102,7 +101,7 @@ void quota_set_sb_inum(ext2_filsys fs, ext2_ino_t ino, int qtype)
ext2fs_mark_super_dirty(fs);
}
errcode_t quota_remove_inode(ext2_filsys fs, int qtype)
errcode_t quota_remove_inode(ext2_filsys fs, enum quota_type qtype)
{
ext2_ino_t qf_ino;
errcode_t retval;
@ -112,8 +111,7 @@ errcode_t quota_remove_inode(ext2_filsys fs, int qtype)
log_err("Couldn't read bitmaps: %s", error_message(retval));
return retval;
}
qf_ino = (qtype == USRQUOTA) ? fs->super->s_usr_quota_inum :
fs->super->s_grp_quota_inum;
qf_ino = *quota_sb_inump(fs->super, qtype);
quota_set_sb_inum(fs, 0, qtype);
/* Truncate the inode only if its a reserved one. */
if (qf_ino < EXT2_FIRST_INODE(fs->super))
@ -145,9 +143,10 @@ static void write_dquots(dict_t *dict, struct quota_handle *qh)
}
}
errcode_t quota_write_inode(quota_ctx_t qctx, int qtype)
errcode_t quota_write_inode(quota_ctx_t qctx, unsigned int qtype_bits)
{
int retval = 0, i;
int retval = 0;
enum quota_type qtype;
dict_t *dict;
ext2_filsys fs;
struct quota_handle *h = NULL;
@ -170,15 +169,15 @@ errcode_t quota_write_inode(quota_ctx_t qctx, int qtype)
goto out;
}
for (i = 0; i < MAXQUOTAS; i++) {
if ((qtype != -1) && (i != qtype))
for (qtype = 0; qtype < MAXQUOTAS; qtype++) {
if (((1 << qtype) & qtype_bits) == 0)
continue;
dict = qctx->quota_dict[i];
dict = qctx->quota_dict[qtype];
if (!dict)
continue;
retval = quota_file_create(h, fs, i, fmt);
retval = quota_file_create(h, fs, qtype, fmt);
if (retval < 0) {
log_err("Cannot initialize io on quotafile");
continue;
@ -196,7 +195,7 @@ errcode_t quota_write_inode(quota_ctx_t qctx, int qtype)
}
/* Set quota inode numbers in superblock. */
quota_set_sb_inum(fs, h->qh_qf.ino, i);
quota_set_sb_inum(fs, h->qh_qf.ino, qtype);
ext2fs_mark_super_dirty(fs);
ext2fs_mark_bb_dirty(fs);
fs->flags &= ~EXT2_FLAG_SUPER_ONLY;
@ -232,11 +231,18 @@ static int dict_uint_cmp(const void *a, const void *b)
return -1;
}
static inline qid_t get_qid(struct ext2_inode *inode, int qtype)
static inline qid_t get_qid(struct ext2_inode *inode, enum quota_type qtype)
{
if (qtype == USRQUOTA)
switch (qtype) {
case USRQUOTA:
return inode_uid(*inode);
return inode_gid(*inode);
case GRPQUOTA:
return inode_gid(*inode);
default:
return 0;
}
return 0;
}
static void quota_dnode_free(dnode_t *node,
@ -251,12 +257,13 @@ static void quota_dnode_free(dnode_t *node,
/*
* Set up the quota tracking data structures.
*/
errcode_t quota_init_context(quota_ctx_t *qctx, ext2_filsys fs, int qtype)
errcode_t quota_init_context(quota_ctx_t *qctx, ext2_filsys fs,
unsigned int qtype_bits)
{
errcode_t err;
dict_t *dict;
quota_ctx_t ctx;
int i;
enum quota_type qtype;
err = ext2fs_get_mem(sizeof(struct quota_ctx), &ctx);
if (err) {
@ -265,9 +272,9 @@ errcode_t quota_init_context(quota_ctx_t *qctx, ext2_filsys fs, int qtype)
}
memset(ctx, 0, sizeof(struct quota_ctx));
for (i = 0; i < MAXQUOTAS; i++) {
ctx->quota_file[i] = NULL;
if ((qtype != -1) && (i != qtype))
for (qtype = 0; qtype < MAXQUOTAS; qtype++) {
ctx->quota_file[qtype] = NULL;
if (((1 << qtype) & qtype_bits) == 0)
continue;
err = ext2fs_get_mem(sizeof(dict_t), &dict);
if (err) {
@ -275,7 +282,7 @@ errcode_t quota_init_context(quota_ctx_t *qctx, ext2_filsys fs, int qtype)
quota_release_context(&ctx);
return err;
}
ctx->quota_dict[i] = dict;
ctx->quota_dict[qtype] = dict;
dict_init(dict, DICTCOUNT_T_MAX, dict_uint_cmp);
dict_set_allocator(dict, NULL, quota_dnode_free, NULL);
}
@ -289,26 +296,26 @@ void quota_release_context(quota_ctx_t *qctx)
{
errcode_t err;
dict_t *dict;
int i;
enum quota_type qtype;
quota_ctx_t ctx;
if (!qctx)
return;
ctx = *qctx;
for (i = 0; i < MAXQUOTAS; i++) {
dict = ctx->quota_dict[i];
ctx->quota_dict[i] = 0;
for (qtype = 0; qtype < MAXQUOTAS; qtype++) {
dict = ctx->quota_dict[qtype];
ctx->quota_dict[qtype] = 0;
if (dict) {
dict_free_nodes(dict);
free(dict);
}
if (ctx->quota_file[i]) {
err = quota_file_close(ctx, ctx->quota_file[i]);
if (ctx->quota_file[qtype]) {
err = quota_file_close(ctx, ctx->quota_file[qtype]);
if (err) {
log_err("Cannot close quotafile: %s",
strerror(errno));
ext2fs_free_mem(&ctx->quota_file[i]);
ext2fs_free_mem(&ctx->quota_file[qtype]);
}
}
}
@ -346,7 +353,7 @@ void quota_data_add(quota_ctx_t qctx, struct ext2_inode *inode,
{
struct dquot *dq;
dict_t *dict;
int i;
enum quota_type qtype;
if (!qctx)
return;
@ -354,10 +361,10 @@ void quota_data_add(quota_ctx_t qctx, struct ext2_inode *inode,
log_debug("ADD_DATA: Inode: %u, UID/GID: %u/%u, space: %ld", ino,
inode_uid(*inode),
inode_gid(*inode), space);
for (i = 0; i < MAXQUOTAS; i++) {
dict = qctx->quota_dict[i];
for (qtype = 0; qtype < MAXQUOTAS; qtype++) {
dict = qctx->quota_dict[qtype];
if (dict) {
dq = get_dq(dict, get_qid(inode, i));
dq = get_dq(dict, get_qid(inode, qtype));
if (dq)
dq->dq_dqb.dqb_curspace += space;
}
@ -373,7 +380,7 @@ void quota_data_sub(quota_ctx_t qctx, struct ext2_inode *inode,
{
struct dquot *dq;
dict_t *dict;
int i;
enum quota_type qtype;
if (!qctx)
return;
@ -381,10 +388,10 @@ void quota_data_sub(quota_ctx_t qctx, struct ext2_inode *inode,
log_debug("SUB_DATA: Inode: %u, UID/GID: %u/%u, space: %ld", ino,
inode_uid(*inode),
inode_gid(*inode), space);
for (i = 0; i < MAXQUOTAS; i++) {
dict = qctx->quota_dict[i];
for (qtype = 0; qtype < MAXQUOTAS; qtype++) {
dict = qctx->quota_dict[qtype];
if (dict) {
dq = get_dq(dict, get_qid(inode, i));
dq = get_dq(dict, get_qid(inode, qtype));
dq->dq_dqb.dqb_curspace -= space;
}
}
@ -398,7 +405,7 @@ void quota_data_inodes(quota_ctx_t qctx, struct ext2_inode *inode,
{
struct dquot *dq;
dict_t *dict;
int i;
enum quota_type qtype;
if (!qctx)
return;
@ -406,10 +413,10 @@ void quota_data_inodes(quota_ctx_t qctx, struct ext2_inode *inode,
log_debug("ADJ_INODE: Inode: %u, UID/GID: %u/%u, adjust: %d", ino,
inode_uid(*inode),
inode_gid(*inode), adjust);
for (i = 0; i < MAXQUOTAS; i++) {
dict = qctx->quota_dict[i];
for (qtype = 0; qtype < MAXQUOTAS; qtype++) {
dict = qctx->quota_dict[qtype];
if (dict) {
dq = get_dq(dict, get_qid(inode, i));
dq = get_dq(dict, get_qid(inode, qtype));
dq->dq_dqb.dqb_curinodes += adjust;
}
}
@ -542,7 +549,8 @@ static errcode_t quota_write_all_dquots(struct quota_handle *qh,
/*
* Updates the in-memory quota limits from the given quota inode.
*/
errcode_t quota_update_limits(quota_ctx_t qctx, ext2_ino_t qf_ino, int type)
errcode_t quota_update_limits(quota_ctx_t qctx, ext2_ino_t qf_ino,
enum quota_type qtype)
{
struct quota_handle *qh;
errcode_t err;
@ -556,7 +564,7 @@ errcode_t quota_update_limits(quota_ctx_t qctx, ext2_ino_t qf_ino, int type)
return err;
}
err = quota_file_open(qctx, qh, qf_ino, type, -1, 0);
err = quota_file_open(qctx, qh, qf_ino, qtype, -1, 0);
if (err) {
log_err("Open quota file failed");
goto out;
@ -581,7 +589,7 @@ out:
* on disk and updates the limits in qctx->quota_dict. 'usage_inconsistent' is
* set to 1 if the supplied and on-disk quota usage values are not identical.
*/
errcode_t quota_compare_and_update(quota_ctx_t qctx, int qtype,
errcode_t quota_compare_and_update(quota_ctx_t qctx, enum quota_type qtype,
int *usage_inconsistent)
{
struct quota_handle qh;
@ -632,3 +640,32 @@ out_close_qh:
out:
return err;
}
int parse_quota_opts(const char *opts, int (*func)(), void *data)
{
char *buf, *token, *next, *p;
int len;
int ret = 0;
len = strlen(opts);
buf = malloc(len + 1);
if (!buf) {
fprintf(stderr,
"Couldn't allocate memory to parse quota options!\n");
return -ENOMEM;
}
strcpy(buf, opts);
for (token = buf; token && *token; token = next) {
p = strchr(token, ',');
next = 0;
if (p) {
*p = 0;
next = p + 1;
}
ret = func(token, data);
if (ret)
break;
}
free(buf);
return ret;
}

View File

@ -15,6 +15,7 @@
#include <sys/types.h>
#include <sys/stat.h>
#include <sys/file.h>
#include <assert.h>
#include "common.h"
#include "quotaio.h"
@ -37,15 +38,31 @@ struct disk_dqheader {
/**
* Convert type of quota to written representation
*/
const char *type2name(int type)
const char *quota_type2name(enum quota_type qtype)
{
return extensions[type];
if (qtype < 0 || qtype >= MAXQUOTAS)
return "unknown";
return extensions[qtype];
}
ext2_ino_t quota_type2inum(enum quota_type qtype,
struct ext2_super_block *sb)
{
switch (qtype) {
case USRQUOTA:
return EXT4_USR_QUOTA_INO;
case GRPQUOTA:
return EXT4_GRP_QUOTA_INO;
default:
return 0;
}
return 0;
}
/**
* Creates a quota file name for given type and format.
*/
const char *quota_get_qf_name(int type, int fmt, char *buf)
const char *quota_get_qf_name(enum quota_type type, int fmt, char *buf)
{
if (!buf)
return NULL;
@ -99,11 +116,16 @@ errcode_t quota_inode_truncate(ext2_filsys fs, ext2_ino_t ino)
{
struct ext2_inode inode;
errcode_t err;
enum quota_type qtype;
if ((err = ext2fs_read_inode(fs, ino, &inode)))
return err;
if ((ino == EXT4_USR_QUOTA_INO) || (ino == EXT4_GRP_QUOTA_INO)) {
for (qtype = 0; qtype < MAXQUOTAS; qtype++)
if (ino == quota_type2inum(qtype, fs->super))
break;
if (qtype != MAXQUOTAS) {
inode.i_dtime = fs->now ? fs->now : time(0);
if (!ext2fs_inode_has_valid_blocks2(fs, &inode))
return 0;
@ -183,14 +205,15 @@ static unsigned int quota_read_nomount(struct quota_file *qf,
* Detect quota format and initialize quota IO
*/
errcode_t quota_file_open(quota_ctx_t qctx, struct quota_handle *h,
ext2_ino_t qf_ino, int type, int fmt, int flags)
ext2_ino_t qf_ino, enum quota_type qtype,
int fmt, int flags)
{
ext2_filsys fs = qctx->fs;
ext2_file_t e2_file;
errcode_t err;
int allocated_handle = 0;
if (type >= MAXQUOTAS)
if (qtype >= MAXQUOTAS)
return EINVAL;
if (fmt == -1)
@ -200,14 +223,10 @@ errcode_t quota_file_open(quota_ctx_t qctx, struct quota_handle *h,
if (err)
return err;
if (qf_ino == 0) {
if (type == USRQUOTA)
qf_ino = fs->super->s_usr_quota_inum;
else
qf_ino = fs->super->s_grp_quota_inum;
}
if (qf_ino == 0)
qf_ino = *quota_sb_inump(fs->super, qtype)
log_debug("Opening quota ino=%lu, type=%d", qf_ino, type);
log_debug("Opening quota ino=%lu, type=%d", qf_ino, qtype);
err = ext2fs_file_open(fs, qf_ino, flags, &e2_file);
if (err) {
log_err("ext2fs_file_open failed: %s", error_message(err));
@ -215,8 +234,8 @@ errcode_t quota_file_open(quota_ctx_t qctx, struct quota_handle *h,
}
if (!h) {
if (qctx->quota_file[type]) {
h = qctx->quota_file[type];
if (qctx->quota_file[qtype]) {
h = qctx->quota_file[qtype];
if (((flags & EXT2_FILE_WRITE) == 0) ||
(h->qh_file_flags & EXT2_FILE_WRITE))
return 0;
@ -237,13 +256,13 @@ errcode_t quota_file_open(quota_ctx_t qctx, struct quota_handle *h,
h->e2fs_read = quota_read_nomount;
h->qh_file_flags = flags;
h->qh_io_flags = 0;
h->qh_type = type;
h->qh_type = qtype;
h->qh_fmt = fmt;
memset(&h->qh_info, 0, sizeof(h->qh_info));
h->qh_ops = &quotafile_ops_2;
if (h->qh_ops->check_file &&
(h->qh_ops->check_file(h, type, fmt) == 0)) {
(h->qh_ops->check_file(h, qtype, fmt) == 0)) {
log_err("qh_ops->check_file failed");
goto errout;
}
@ -253,7 +272,7 @@ errcode_t quota_file_open(quota_ctx_t qctx, struct quota_handle *h,
goto errout;
}
if (allocated_handle)
qctx->quota_file[type] = h;
qctx->quota_file[qtype] = h;
return 0;
errout:
@ -298,7 +317,8 @@ static errcode_t quota_inode_init_new(ext2_filsys fs, ext2_ino_t ino)
/*
* Create new quotafile of specified format on given filesystem
*/
errcode_t quota_file_create(struct quota_handle *h, ext2_filsys fs, int type, int fmt)
errcode_t quota_file_create(struct quota_handle *h, ext2_filsys fs,
enum quota_type qtype, int fmt)
{
ext2_file_t e2_file;
int err;
@ -308,11 +328,8 @@ errcode_t quota_file_create(struct quota_handle *h, ext2_filsys fs, int type, in
fmt = QFMT_VFS_V1;
h->qh_qf.fs = fs;
if (type == USRQUOTA)
qf_inum = EXT4_USR_QUOTA_INO;
else if (type == GRPQUOTA)
qf_inum = EXT4_GRP_QUOTA_INO;
else
qf_inum = quota_type2inum(qtype, fs->super);
if (qf_inum == 0)
return -1;
err = ext2fs_read_bitmaps(fs);
@ -338,7 +355,7 @@ errcode_t quota_file_create(struct quota_handle *h, ext2_filsys fs, int type, in
h->qh_qf.e2_file = e2_file;
h->qh_io_flags = 0;
h->qh_type = type;
h->qh_type = qtype;
h->qh_fmt = fmt;
memset(&h->qh_info, 0, sizeof(h->qh_info));
h->qh_ops = &quotafile_ops_2;

View File

@ -10,9 +10,9 @@
* {
* quota_ctx_t qctx;
*
* quota_init_context(&qctx, fs, -1);
* quota_init_context(&qctx, fs, QUOTA_ALL_BIT);
* {
* quota_compute_usage(qctx, -1);
* quota_compute_usage(qctx, QUOTA_ALL_BIT);
* AND/OR
* quota_data_add/quota_data_sub/quota_data_inodes();
* }
@ -43,9 +43,19 @@
typedef int64_t qsize_t; /* Type in which we store size limitations */
#define MAXQUOTAS 2
#define USRQUOTA 0
#define GRPQUOTA 1
enum quota_type {
USRQUOTA = 0,
GRPQUOTA = 1,
MAXQUOTAS = 2,
};
#if MAXQUOTAS > 32
#error "cannot have more than 32 quota types to fit in qtype_bits"
#endif
#define QUOTA_USR_BIT (1 << USRQUOTA)
#define QUOTA_GRP_BIT (1 << GRPQUOTA)
#define QUOTA_ALL_BIT (QUOTA_USR_BIT | QUOTA_GRP_BIT)
typedef struct quota_ctx *quota_ctx_t;
struct dict_t;
@ -104,7 +114,7 @@ struct quota_file {
/* Structure for one opened quota file */
struct quota_handle {
int qh_type; /* Type of quotafile */
enum quota_type qh_type; /* Type of quotafile */
int qh_fmt; /* Quotafile format */
int qh_file_flags;
int qh_io_flags; /* IO flags for file */
@ -174,12 +184,13 @@ extern struct quotafile_ops quotafile_ops_meta;
/* Open existing quotafile of given type (and verify its format) on given
* filesystem. */
errcode_t quota_file_open(quota_ctx_t qctx, struct quota_handle *h,
ext2_ino_t qf_ino, int type, int fmt, int flags);
ext2_ino_t qf_ino, enum quota_type type,
int fmt, int flags);
/* Create new quotafile of specified format on given filesystem */
errcode_t quota_file_create(struct quota_handle *h, ext2_filsys fs,
int type, int fmt);
enum quota_type qtype, int fmt);
/* Close quotafile */
errcode_t quota_file_close(quota_ctx_t qctx, struct quota_handle *h);
@ -189,7 +200,8 @@ struct dquot *get_empty_dquot(void);
errcode_t quota_inode_truncate(ext2_filsys fs, ext2_ino_t ino);
const char *type2name(int type);
const char *quota_type2name(enum quota_type qtype);
ext2_ino_t quota_type2inum(enum quota_type qtype, struct ext2_super_block *);
void update_grace_times(struct dquot *q);
@ -197,27 +209,48 @@ void update_grace_times(struct dquot *q);
than maxlen of extensions[] and fmtnames[] (plus 2) found in quotaio.c */
#define QUOTA_NAME_LEN 16
const char *quota_get_qf_name(int type, int fmt, char *buf);
const char *quota_get_qf_name(enum quota_type, int fmt, char *buf);
/* In mkquota.c */
errcode_t quota_init_context(quota_ctx_t *qctx, ext2_filsys fs, int qtype);
errcode_t quota_init_context(quota_ctx_t *qctx, ext2_filsys fs,
unsigned int qtype_bits);
void quota_data_inodes(quota_ctx_t qctx, struct ext2_inode *inode, ext2_ino_t ino,
int adjust);
void quota_data_add(quota_ctx_t qctx, struct ext2_inode *inode, ext2_ino_t ino,
qsize_t space);
void quota_data_sub(quota_ctx_t qctx, struct ext2_inode *inode, ext2_ino_t ino,
qsize_t space);
errcode_t quota_write_inode(quota_ctx_t qctx, int qtype);
errcode_t quota_update_limits(quota_ctx_t qctx, ext2_ino_t qf_ino, int type);
errcode_t quota_write_inode(quota_ctx_t qctx, enum quota_type qtype);
errcode_t quota_update_limits(quota_ctx_t qctx, ext2_ino_t qf_ino,
enum quota_type type);
errcode_t quota_compute_usage(quota_ctx_t qctx);
void quota_release_context(quota_ctx_t *qctx);
errcode_t quota_remove_inode(ext2_filsys fs, int qtype);
int quota_file_exists(ext2_filsys fs, int qtype);
void quota_set_sb_inum(ext2_filsys fs, ext2_ino_t ino, int qtype);
errcode_t quota_compare_and_update(quota_ctx_t qctx, int qtype,
errcode_t quota_remove_inode(ext2_filsys fs, enum quota_type qtype);
int quota_file_exists(ext2_filsys fs, enum quota_type qtype);
void quota_set_sb_inum(ext2_filsys fs, ext2_ino_t ino, enum quota_type qtype);
errcode_t quota_compare_and_update(quota_ctx_t qctx, enum quota_type qtype,
int *usage_inconsistent);
int parse_quota_opts(const char *opts, int (*func)(), void *data);
/*
* Return pointer to reserved inode field in superblock for given quota type.
*
* This allows the caller to get or set the quota inode by type without the
* need for the quota array to be contiguous in the superbock.
*/
static inline ext2_ino_t *quota_sb_inump(struct ext2_super_block *sb,
enum quota_type qtype)
{
switch (qtype) {
case USRQUOTA:
return &sb->s_usr_quota_inum;
case GRPQUOTA:
return &sb->s_grp_quota_inum;
default:
return NULL;
}
return NULL;
}
#endif /* GUARD_QUOTAIO_H */

View File

@ -587,7 +587,7 @@ static void check_reference(struct quota_handle *h, unsigned int blk)
"Please run e2fsck (8) to fix it.",
blk,
h->qh_info.u.v2_mdqi.dqi_qtree.dqi_blocks,
type2name(h->qh_type));
quota_type2name(h->qh_type));
}
static int report_tree(struct dquot *dquot, unsigned int blk, int depth,

View File

@ -95,7 +95,8 @@ static int lazy_itable_init;
static int packed_meta_blocks;
static char *bad_blocks_filename = NULL;
static __u32 fs_stride;
static int quotatype = -1; /* Initialize both user and group quotas by default */
/* Initialize usr/grp quotas by default */
static unsigned int quotatype_bits = (QUOTA_USR_BIT | QUOTA_GRP_BIT);
static __u64 offset;
static blk64_t journal_location = ~0LL;
static int proceed_delay = -1;
@ -770,12 +771,28 @@ static int set_os(struct ext2_super_block *sb, char *os)
#define PATH_SET "PATH=/sbin"
static int option_handle_function(char *token, void *data)
{
if (!strncmp(token, "usr", 3)) {
quotatype_bits |= QUOTA_USR_BIT;
} else if (!strncmp(token, "grp", 3)) {
quotatype_bits |= QUOTA_GRP_BIT;
} else {
fprintf(stderr, _("Invalid quotatype parameter: %s\n"),
token);
return 1;
}
return 0;
}
static void parse_extended_opts(struct ext2_super_block *param,
const char *opts)
{
char *buf, *token, *next, *p, *arg, *badopt = 0;
int len;
int r_usage = 0;
int ret;
len = strlen(opts);
buf = malloc(len+1);
@ -1008,14 +1025,9 @@ static void parse_extended_opts(struct ext2_super_block *param,
badopt = token;
continue;
}
if (!strncmp(arg, "usr", 3)) {
quotatype = 0;
} else if (!strncmp(arg, "grp", 3)) {
quotatype = 1;
} else {
fprintf(stderr,
_("Invalid quotatype parameter: %s\n"),
arg);
ret = parse_quota_opts(arg, option_handle_function,
NULL);
if (ret) {
r_usage++;
continue;
}
@ -2646,9 +2658,9 @@ static int create_quota_inodes(ext2_filsys fs)
{
quota_ctx_t qctx;
quota_init_context(&qctx, fs, -1);
quota_init_context(&qctx, fs, QUOTA_ALL_BIT);
quota_compute_usage(qctx);
quota_write_inode(qctx, quotatype);
quota_write_inode(qctx, quotatype_bits);
quota_release_context(&qctx);
return 0;

View File

@ -95,7 +95,7 @@ static int stride_set, stripe_width_set;
static char *extended_cmd;
static unsigned long new_inode_size;
static char *ext_mount_opts;
static int usrquota, grpquota;
static int quota_enable[MAXQUOTAS];
static int rewrite_checksums;
static int feature_64bit;
static int fsck_requested;
@ -958,6 +958,7 @@ static int update_feature_set(ext2_filsys fs, char *features)
int type_err;
unsigned int mask_err;
errcode_t err;
enum quota_type qtype;
#define FEATURE_ON(type, mask) (!(old_features[(type)] & (mask)) && \
((&sb->s_feature_compat)[(type)] & (mask)))
@ -1265,9 +1266,9 @@ mmp_error:
*/
if (!Q_flag) {
Q_flag = 1;
/* Enable both user quota and group quota by default */
usrquota = QOPT_ENABLE;
grpquota = QOPT_ENABLE;
/* Enable all quota by default */
for (qtype = 0; qtype < MAXQUOTAS; qtype++)
quota_enable[qtype] = QOPT_ENABLE;
}
ext2fs_clear_feature_quota(sb);
}
@ -1282,9 +1283,9 @@ mmp_error:
fputs(_("\nWarning: '^quota' option overrides '-Q'"
"arguments.\n"), stderr);
Q_flag = 1;
/* Disable both user quota and group quota by default */
usrquota = QOPT_DISABLE;
grpquota = QOPT_DISABLE;
/* Disable all quota by default */
for (qtype = 0; qtype < MAXQUOTAS; qtype++)
quota_enable[qtype] = QOPT_DISABLE;
}
if (FEATURE_ON(E2P_FEATURE_INCOMPAT, EXT4_FEATURE_INCOMPAT_ENCRYPT)) {
@ -1406,87 +1407,76 @@ static void handle_quota_options(ext2_filsys fs)
{
quota_ctx_t qctx;
ext2_ino_t qf_ino;
enum quota_type qtype;
int enable = 0;
if (!usrquota && !grpquota)
for (qtype = 0 ; qtype < MAXQUOTAS; qtype++)
if (quota_enable[qtype] != 0)
break;
if (qtype == MAXQUOTAS)
/* Nothing to do. */
return;
quota_init_context(&qctx, fs, -1);
if (usrquota == QOPT_ENABLE || grpquota == QOPT_ENABLE)
quota_init_context(&qctx, fs, QUOTA_ALL_BIT);
for (qtype = 0 ; qtype < MAXQUOTAS; qtype++) {
if (quota_enable[qtype] == QOPT_ENABLE) {
enable = 1;
break;
}
}
if (enable)
quota_compute_usage(qctx);
if (usrquota == QOPT_ENABLE && !fs->super->s_usr_quota_inum) {
if ((qf_ino = quota_file_exists(fs, USRQUOTA)) > 0)
quota_update_limits(qctx, qf_ino, USRQUOTA);
quota_write_inode(qctx, USRQUOTA);
} else if (usrquota == QOPT_DISABLE) {
quota_remove_inode(fs, USRQUOTA);
}
if (grpquota == QOPT_ENABLE && !fs->super->s_grp_quota_inum) {
if ((qf_ino = quota_file_exists(fs, GRPQUOTA)) > 0)
quota_update_limits(qctx, qf_ino, GRPQUOTA);
quota_write_inode(qctx, GRPQUOTA);
} else if (grpquota == QOPT_DISABLE) {
quota_remove_inode(fs, GRPQUOTA);
for (qtype = 0 ; qtype < MAXQUOTAS; qtype++) {
if (quota_enable[qtype] == QOPT_ENABLE &&
*quota_sb_inump(fs->super, qtype) == 0) {
if ((qf_ino = quota_file_exists(fs, qtype)) > 0)
quota_update_limits(qctx, qf_ino, qtype);
quota_write_inode(qctx, 1 << qtype);
} else if (quota_enable[qtype] == QOPT_DISABLE) {
quota_remove_inode(fs, qtype);
}
}
quota_release_context(&qctx);
if ((usrquota == QOPT_ENABLE) || (grpquota == QOPT_ENABLE)) {
if (enable) {
ext2fs_set_feature_quota(fs->super);
ext2fs_mark_super_dirty(fs);
} else if (!fs->super->s_usr_quota_inum &&
!fs->super->s_grp_quota_inum) {
ext2fs_clear_feature_quota(fs->super);
ext2fs_mark_super_dirty(fs);
} else {
for (qtype = 0 ; qtype < MAXQUOTAS; qtype++)
if (*quota_sb_inump(fs->super, qtype) != 0)
break;
if (qtype == MAXQUOTAS) {
fs->super->s_feature_ro_compat &=
~EXT4_FEATURE_RO_COMPAT_QUOTA;
ext2fs_mark_super_dirty(fs);
}
}
return;
}
static void parse_quota_opts(const char *opts)
static int option_handle_function(char *token, void *data)
{
char *buf, *token, *next, *p;
int len;
len = strlen(opts);
buf = malloc(len+1);
if (!buf) {
fputs(_("Couldn't allocate memory to parse quota "
"options!\n"), stderr);
exit(1);
if (strncmp(token, "usr", 3) == 0) {
quota_enable[USRQUOTA] = QOPT_ENABLE;
} else if (strncmp(token, "^usr", 4) == 0) {
quota_enable[USRQUOTA] = QOPT_DISABLE;
} else if (strncmp(token, "grp", 3) == 0) {
quota_enable[GRPQUOTA] = QOPT_ENABLE;
} else if (strncmp(token, "^grp", 4) == 0) {
quota_enable[GRPQUOTA] = QOPT_DISABLE;
} else {
fputs(_("\nBad quota options specified.\n\n"
"Following valid quota options are available "
"(pass by separating with comma):\n"
"\t[^]usr[quota]\n"
"\t[^]grp[quota]\n"
"\n\n"), stderr);
return 1;
}
strcpy(buf, opts);
for (token = buf; token && *token; token = next) {
p = strchr(token, ',');
next = 0;
if (p) {
*p = 0;
next = p+1;
}
if (strcmp(token, "usrquota") == 0) {
usrquota = QOPT_ENABLE;
} else if (strcmp(token, "^usrquota") == 0) {
usrquota = QOPT_DISABLE;
} else if (strcmp(token, "grpquota") == 0) {
grpquota = QOPT_ENABLE;
} else if (strcmp(token, "^grpquota") == 0) {
grpquota = QOPT_DISABLE;
} else {
fputs(_("\nBad quota options specified.\n\n"
"Following valid quota options are available "
"(pass by separating with comma):\n"
"\t[^]usrquota\n"
"\t[^]grpquota\n"
"\n\n"), stderr);
free(buf);
exit(1);
}
}
free(buf);
return 0;
}
static void parse_e2label_options(int argc, char ** argv)
@ -1549,6 +1539,7 @@ static void parse_tune2fs_options(int argc, char **argv)
char *tmp;
struct group *gr;
struct passwd *pw;
int ret;
char optstring[100] = "c:e:fg:i:jlm:o:r:s:u:C:E:I:J:L:M:O:T:U:z:Q:";
open_flag = 0;
@ -1709,7 +1700,10 @@ static void parse_tune2fs_options(int argc, char **argv)
break;
case 'Q':
Q_flag = 1;
parse_quota_opts(optarg);
ret = parse_quota_opts(optarg, option_handle_function,
NULL);
if (ret)
exit(1);
open_flag = EXT2_FLAG_RW;
break;
case 'r':