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Date: Wed, 22 Jan 2014 20:20:31 +0800
From: Li Xi <pkuelelixi@...il.com>
To: Ext4 Developers List <linux-ext4@...r.kernel.org>
Cc: Andreas Dilger <adilger@...ger.ca>, Shuichi Ihara <sihara@....com>,
"Darrick J. Wong" <darrick.wong@...cle.com>
Subject: Re: [PATCH v3] e2fsprogs: clean up codes for adding new quota type
Changelog:
* V3:
- Add check of MAXQUOTAS <= 32
- Change iterator from "i"/"type" to "qtype".
- Add assertion of qtype range in quota_type2* funtions
- Rename quota_type2ino to quota_type2inum
- Change get_qid()
- Replace quota_type2offset() with quota_sb_inump()
* V2:
- Change type2* functions to quota_type2*
- Use uncontinuous array of s_quota_inum
- Add quota_type_t
- Fix a problem of quota_write_inode() in the first patch
- Rename USRQUOTA_BIT/GRPQUOTA_BIT/ALLQUOTA_BIT to QUOTA_*_BIT
- Code style change
Signed-off-by: Li Xi <lixi <at> ddn.com>
--
Index: e2fsprogs.git/lib/e2p/ls.c
===================================================================
--- e2fsprogs.git.orig/lib/e2p/ls.c
+++ e2fsprogs.git/lib/e2p/ls.c
@@ -23,6 +23,7 @@
#include <time.h>
#include "e2p.h"
+#include "quota/quotaio.h"
static void print_user (unsigned short uid, FILE *f)
{
@@ -206,11 +207,27 @@ static const char *checksum_type(__u8 ty
}
}
+static const char const *quota_prefix[MAXQUOTAS] = {
+ [USRQUOTA] = "User quota inode:",
+ [GRPQUOTA] = "Group quota inode:",
+};
+
+/**
+ * Convert type of quota to written representation
+ */
+const char *quota_type2prefix(quota_type_t qtype)
+{
+ assert(qtype >= 0);
+ assert(qtype < MAXQUOTAS);
+ 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;
+ quota_type_t qtype;
inode_blocks_per_group = (((sb->s_inodes_per_group *
EXT2_INODE_SIZE(sb)) +
@@ -426,13 +443,12 @@ void list_super2(struct ext2_super_block
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 (sb->s_feature_ro_compat & EXT4_FEATURE_RO_COMPAT_METADATA_CSUM) {
fprintf(f, "Checksum type: %s\n",
checksum_type(sb->s_checksum_type));
Index: e2fsprogs.git/lib/ext2fs/ext2_fs.h
===================================================================
--- e2fsprogs.git.orig/lib/ext2fs/ext2_fs.h
+++ e2fsprogs.git/lib/ext2fs/ext2_fs.h
@@ -666,8 +666,7 @@ struct ext2_super_block {
__u8 s_last_error_func[32]; /* function where the error happened */
#define EXT4_S_ERR_END ext4_offsetof(struct ext2_super_block, s_mount_opts)
__u8 s_mount_opts[64];
- __u32 s_usr_quota_inum; /* inode number of user quota file */
- __u32 s_grp_quota_inum; /* inode number of group quota file */
+ __u32 s_quota_inum[2]; /* inode numbers of quota files */
__u32 s_overhead_blocks; /* overhead blocks/clusters in fs */
__u32 s_reserved[108]; /* Padding to the end of the block */
__u32 s_checksum; /* crc32c(superblock) */
Index: e2fsprogs.git/lib/quota/mkquota.c
===================================================================
--- e2fsprogs.git.orig/lib/quota/mkquota.c
+++ e2fsprogs.git/lib/quota/mkquota.c
@@ -51,7 +51,7 @@ static void print_inode(struct ext2_inod
* 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 fmt)
+int quota_file_exists(ext2_filsys fs, quota_type_t qtype, int fmt)
{
char qf_name[256];
errcode_t ret;
@@ -73,12 +73,11 @@ int quota_file_exists(ext2_filsys fs, in
/*
* 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, quota_type_t 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);
@@ -86,13 +85,12 @@ void quota_set_sb_inum(ext2_filsys fs, e
ext2fs_mark_super_dirty(fs);
}
-errcode_t quota_remove_inode(ext2_filsys fs, int qtype)
+errcode_t quota_remove_inode(ext2_filsys fs, quota_type_t qtype)
{
ext2_ino_t qf_ino;
ext2fs_read_bitmaps(fs);
- 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))
@@ -119,9 +117,10 @@ static void write_dquots(dict_t *dict, s
}
}
-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;
+ quota_type_t qtype;
dict_t *dict;
ext2_filsys fs;
struct quota_handle *h = NULL;
@@ -139,15 +138,15 @@ errcode_t quota_write_inode(quota_ctx_t
ext2fs_read_bitmaps(fs);
- 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;
@@ -165,7 +164,7 @@ errcode_t quota_write_inode(quota_ctx_t
}
/* 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;
@@ -192,11 +191,20 @@ static int dict_uint_cmp(const void *a,
return c - d;
}
-static inline qid_t get_qid(struct ext2_inode *inode, int qtype)
+static inline qid_t get_qid(struct ext2_inode *inode, quota_type_t qtype)
{
- if (qtype == USRQUOTA)
- return inode_uid(*inode);
- return inode_gid(*inode);
+ assert(qtype >= 0);
+ assert(qtype < MAXQUOTAS);
+ switch (qtype) {
+ case USRQUOTA:
+ return inode_uid(*inode);
+ case GRPQUOTA:
+ return inode_gid(*inode);
+ default:
+ return 0;
+ }
+
+ return 0;
}
static void quota_dnode_free(dnode_t *node,
@@ -211,9 +219,11 @@ static void quota_dnode_free(dnode_t *no
/*
* 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)
{
- int i, err = 0;
+ int err = 0;
+ quota_type_t qtype;
dict_t *dict;
quota_ctx_t ctx;
@@ -224,8 +234,8 @@ errcode_t quota_init_context(quota_ctx_t
}
memset(ctx, 0, sizeof(struct quota_ctx));
- for (i = 0; i < MAXQUOTAS; i++) {
- if ((qtype != -1) && (i != qtype))
+ for (qtype = 0; qtype < MAXQUOTAS; qtype++) {
+ if (((1 << qtype) & qtype_bits) == 0)
continue;
err = ext2fs_get_mem(sizeof(dict_t), &dict);
if (err) {
@@ -233,7 +243,7 @@ errcode_t quota_init_context(quota_ctx_t
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);
}
@@ -246,16 +256,16 @@ errcode_t quota_init_context(quota_ctx_t
void quota_release_context(quota_ctx_t *qctx)
{
dict_t *dict;
- int i;
+ quota_type_t 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);
@@ -294,7 +304,7 @@ void quota_data_add(quota_ctx_t qctx, st
{
struct dquot *dq;
dict_t *dict;
- int i;
+ quota_type_t qtype;
if (!qctx)
return;
@@ -302,10 +312,10 @@ void quota_data_add(quota_ctx_t qctx, st
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;
}
@@ -320,7 +330,7 @@ void quota_data_sub(quota_ctx_t qctx, st
{
struct dquot *dq;
dict_t *dict;
- int i;
+ quota_type_t qtype;
if (!qctx)
return;
@@ -328,10 +338,10 @@ void quota_data_sub(quota_ctx_t qctx, st
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;
}
}
@@ -345,7 +355,7 @@ void quota_data_inodes(quota_ctx_t qctx,
{
struct dquot *dq;
dict_t *dict;
- int i;
+ quota_type_t qtype;
if (!qctx)
return;
@@ -353,10 +363,10 @@ void quota_data_inodes(quota_ctx_t qctx,
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;
}
}
@@ -486,7 +496,8 @@ static errcode_t quota_write_all_dquots(
/*
* 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,
+ quota_type_t qtype)
{
struct quota_handle *qh;
errcode_t err;
@@ -500,7 +511,7 @@ errcode_t quota_update_limits(quota_ctx_
return err;
}
- err = quota_file_open(qh, qctx->fs, qf_ino, type, -1, 0);
+ err = quota_file_open(qh, qctx->fs, qf_ino, qtype, -1, 0);
if (err) {
log_err("Open quota file failed");
goto out;
@@ -525,7 +536,7 @@ 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, quota_type_t qtype,
int *usage_inconsistent)
{
ext2_filsys fs = qctx->fs;
@@ -537,8 +548,7 @@ errcode_t quota_compare_and_update(quota
if (!qctx->quota_dict[qtype])
goto out;
- qf_ino = qtype == USRQUOTA ? fs->super->s_usr_quota_inum :
- fs->super->s_grp_quota_inum;
+ qf_ino = *quota_sb_inump(fs->super, qtype);
err = quota_file_open(&qh, fs, qf_ino, qtype, -1, 0);
if (err) {
log_err("Open quota file failed");
Index: e2fsprogs.git/e2fsck/pass1.c
===================================================================
--- e2fsprogs.git.orig/e2fsck/pass1.c
+++ e2fsprogs.git/e2fsck/pass1.c
@@ -574,6 +574,28 @@ static errcode_t recheck_bad_inode_check
return 0;
}
+static int quota_inum_is_super(struct ext2_super_block *sb, ext2_ino_t ino)
+{
+ quota_type_t qtype;
+
+ for (qtype = 0; qtype < MAXQUOTAS; qtype++)
+ if (*quota_sb_inump(sb, qtype) == ino)
+ return 1;
+
+ return 0;
+}
+
+static int quota_inum_is_reserved(ext2_ino_t ino)
+{
+ quota_type_t qtype;
+
+ for (qtype = 0; qtype < MAXQUOTAS; qtype++)
+ if (quota_type2inum(qtype) == ino)
+ return 1;
+
+ return 0;
+}
+
void e2fsck_pass1(e2fsck_t ctx)
{
int i;
@@ -970,13 +992,11 @@ void e2fsck_pass1(e2fsck_t ctx)
e2fsck_write_inode_full(ctx, ino, inode,
inode_size, "pass1");
}
- } else if ((ino == EXT4_USR_QUOTA_INO) ||
- (ino == EXT4_GRP_QUOTA_INO)) {
+ } else if (quota_inum_is_reserved(ino)) {
ext2fs_mark_inode_bitmap2(ctx->inode_used_map, ino);
if ((fs->super->s_feature_ro_compat &
EXT4_FEATURE_RO_COMPAT_QUOTA) &&
- ((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)) {
Index: e2fsprogs.git/e2fsck/quota.c
===================================================================
--- e2fsprogs.git.orig/e2fsck/quota.c
+++ e2fsprogs.git/e2fsck/quota.c
@@ -19,7 +19,7 @@
#include "quota/quotaio.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, quota_type_t qtype)
{
struct ext2_inode inode;
errcode_t retval;
@@ -63,6 +63,8 @@ void e2fsck_hide_quota(e2fsck_t ctx)
struct ext2_super_block *sb = ctx->fs->super;
struct problem_context pctx;
ext2_filsys fs = ctx->fs;
+ quota_type_t qtype;
+ ext2_ino_t quota_ino;
clear_problem_context(&pctx);
@@ -70,22 +72,14 @@ void e2fsck_hide_quota(e2fsck_t ctx)
!(sb->s_feature_ro_compat & EXT4_FEATURE_RO_COMPAT_QUOTA))
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);
+ 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;
Index: e2fsprogs.git/e2fsck/unix.c
===================================================================
--- e2fsprogs.git.orig/e2fsck/unix.c
+++ e2fsprogs.git/e2fsck/unix.c
@@ -1180,7 +1180,8 @@ int main (int argc, char *argv[])
int old_bitmaps;
__u32 features[3];
char *cp;
- int qtype = -99; /* quota type */
+ unsigned int qtype_bits = 0;
+ quota_type_t qtype;
clear_problem_context(&pctx);
sigcatcher_setup();
@@ -1624,13 +1625,12 @@ print_unsupp_features:
if (sb->s_feature_ro_compat & EXT4_FEATURE_RO_COMPAT_QUOTA) {
/* 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);
@@ -1667,17 +1667,17 @@ print_unsupp_features:
no_journal:
if (ctx->qctx) {
- int i, needs_writeout;
- for (i = 0; i < MAXQUOTAS; i++) {
- if (qtype != -1 && qtype != i)
+ int needs_writeout;
+ 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);
}
Index: e2fsprogs.git/lib/quota/mkquota.h
===================================================================
--- e2fsprogs.git.orig/lib/quota/mkquota.h
+++ e2fsprogs.git/lib/quota/mkquota.h
@@ -10,14 +10,13 @@
* {
* quota_ctx_t qctx;
*
- * quota_init_context(&qctx, fs, -1);
+ * quota_init_context(&qctx, fs, QUOTA_ALL_BIT);
* {
* quota_compute_usage(qctx, -1);
* AND/OR
* quota_data_add/quota_data_sub/quota_data_inodes();
* }
- * quota_write_inode(qctx, USRQUOTA);
- * quota_write_inode(qctx, GRPQUOTA);
+ * quota_write_inode(qctx, QUOTA_ALL_BIT);
* quota_release_context(&qctx);
* }
*
@@ -43,22 +42,24 @@ struct quota_ctx {
};
/* 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, unsigned int qtype_bits);
+errcode_t quota_update_limits(quota_ctx_t qctx, ext2_ino_t qf_ino,
+ quota_type_t qtype);
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, int fmt);
-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, quota_type_t qtype);
+int quota_file_exists(ext2_filsys fs, quota_type_t qtype, int fmt);
+void quota_set_sb_inum(ext2_filsys fs, ext2_ino_t ino, quota_type_t qtype);
+errcode_t quota_compare_and_update(quota_ctx_t qctx, quota_type_t qtype,
int *usage_inconsistent);
#endif /* __QUOTA_QUOTAIO_H__ */
Index: e2fsprogs.git/lib/quota/quotaio.c
===================================================================
--- e2fsprogs.git.orig/lib/quota/quotaio.c
+++ e2fsprogs.git/lib/quota/quotaio.c
@@ -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 +38,35 @@ struct disk_dqheader {
/**
* Convert type of quota to written representation
*/
-const char *type2name(int type)
+const char *quota_type2name(quota_type_t qtype)
{
- return extensions[type];
+ assert(qtype >= 0);
+ assert(qtype < MAXQUOTAS);
+ return extensions[qtype];
+}
+
+ext2_ino_t quota_type2inum(quota_type_t qtype)
+{
+ assert(qtype >= 0);
+ assert(qtype < MAXQUOTAS);
+ switch (qtype) {
+ case USRQUOTA:
+ return EXT4_USR_QUOTA_INO;
+ break;
+ case GRPQUOTA:
+ return EXT4_GRP_QUOTA_INO;
+ break;
+ default:
+ return 0;
+ break;
+ }
+ 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(quota_type_t type, int fmt, char *buf)
{
if (!buf)
return NULL;
@@ -55,7 +76,7 @@ const char *quota_get_qf_name(int type,
return buf;
}
-const char *quota_get_qf_path(const char *mntpt, int qtype, int fmt,
+const char *quota_get_qf_path(const char *mntpt, quota_type_t qtype, int fmt,
char *path_buf, size_t path_buf_size)
{
char qf_name[QUOTA_NAME_LEN];
@@ -114,11 +135,16 @@ errcode_t quota_inode_truncate(ext2_fils
{
struct ext2_inode inode;
errcode_t err;
+ quota_type_t 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))
+ break;
+
+ if (qtype != MAXQUOTAS) {
inode.i_dtime = fs->now ? fs->now : time(0);
if (!ext2fs_inode_has_valid_blocks2(fs, &inode))
return 0;
@@ -198,7 +224,8 @@ static unsigned int quota_read_nomount(s
* Detect quota format and initialize quota IO
*/
errcode_t quota_file_open(struct quota_handle *h, ext2_filsys fs,
- ext2_ino_t qf_ino, int type, int fmt, int flags)
+ ext2_ino_t qf_ino, quota_type_t qtype, int fmt,
+ int flags)
{
ext2_file_t e2_file;
errcode_t err;
@@ -223,13 +250,13 @@ errcode_t quota_file_open(struct quota_h
h->e2fs_write = quota_write_nomount;
h->e2fs_read = quota_read_nomount;
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 = "afile_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");
ext2fs_file_close(e2_file);
return -1;
@@ -280,7 +307,8 @@ static errcode_t quota_inode_init_new(ex
/*
* 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,
+ quota_type_t qtype, int fmt)
{
ext2_file_t e2_file;
int err;
@@ -290,11 +318,8 @@ errcode_t quota_file_create(struct quota
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);
+ if (qf_inum == 0)
return -1;
err = ext2fs_read_bitmaps(fs);
@@ -310,7 +335,7 @@ errcode_t quota_file_create(struct quota
h->e2fs_write = quota_write_nomount;
h->e2fs_read = quota_read_nomount;
- log_debug("Creating quota ino=%lu, type=%d", qf_inum, type);
+ log_debug("Creating quota ino=%lu, type=%d", qf_inum, qtype);
err = ext2fs_file_open(fs, qf_inum,
EXT2_FILE_WRITE | EXT2_FILE_CREATE, &e2_file);
if (err) {
@@ -320,7 +345,7 @@ errcode_t quota_file_create(struct quota
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 = "afile_ops_2;
Index: e2fsprogs.git/lib/quota/quotaio.h
===================================================================
--- e2fsprogs.git.orig/lib/quota/quotaio.h
+++ e2fsprogs.git/lib/quota/quotaio.h
@@ -16,9 +16,20 @@
typedef int64_t qsize_t; /* Type in which we store size limitations */
+typedef enum {
+ USRQUOTA = 0,
+ GRPQUOTA = 1,
+} quota_type_t;
+
#define MAXQUOTAS 2
-#define USRQUOTA 0
-#define GRPQUOTA 1
+
+#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)
/*
* Definitions of magics and versions of current quota files
@@ -68,7 +79,7 @@ struct quota_file {
/* Structure for one opened quota file */
struct quota_handle {
- int qh_type; /* Type of quotafile */
+ quota_type_t qh_type; /* Type of quotafile */
int qh_fmt; /* Quotafile format */
int qh_io_flags; /* IO flags for file */
struct quota_file qh_qf;
@@ -135,12 +146,13 @@ extern struct quotafile_ops quotafile_op
/* Open existing quotafile of given type (and verify its format) on given
* filesystem. */
errcode_t quota_file_open(struct quota_handle *h, ext2_filsys fs,
- ext2_ino_t qf_ino, int type, int fmt, int flags);
+ ext2_ino_t qf_ino, quota_type_t 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);
+ quota_type_t qtype, int fmt);
/* Close quotafile */
errcode_t quota_file_close(struct quota_handle *h);
@@ -150,7 +162,8 @@ 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(quota_type_t qtype);
+ext2_ino_t quota_type2inum(quota_type_t qtype);
void update_grace_times(struct dquot *q);
@@ -158,8 +171,31 @@ 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_path(const char *mntpt, int qtype, int fmt,
+const char *quota_get_qf_name(quota_type_t type, int fmt, char *buf);
+const char *quota_get_qf_path(const char *mntpt, quota_type_t qtype, int fmt,
char *path_buf, size_t path_buf_size);
+#include <assert.h>
+
+static inline ext2_ino_t *quota_sb_inump(struct ext2_super_block *sb,
quota_type_t qtype)
+{
+ assert(qtype >= 0);
+ assert(qtype < MAXQUOTAS);
+ switch (qtype) {
+ case USRQUOTA:
+ return &sb->s_quota_inum[0];
+ case GRPQUOTA:
+ return &sb->s_quota_inum[1];
+ /* Skip s_overhead_blocks like this */
+ /*
+ case PRJQUOTA:
+ return &sb->s_quota_inum[3];
+ */
+ default:
+ return NULL;
+ }
+
+ return NULL;
+}
+
#endif /* GUARD_QUOTAIO_H */
Index: e2fsprogs.git/misc/tune2fs.c
===================================================================
--- e2fsprogs.git.orig/misc/tune2fs.c
+++ e2fsprogs.git/misc/tune2fs.c
@@ -94,7 +94,7 @@ 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;
int journal_size, journal_flags;
@@ -862,6 +862,7 @@ static int update_feature_set(ext2_filsy
__u32 old_features[3];
int type_err;
unsigned int mask_err;
+ quota_type_t qtype;
#define FEATURE_ON(type, mask) (!(old_features[(type)] & (mask)) && \
((&sb->s_feature_compat)[(type)] & (mask)))
@@ -1094,9 +1095,9 @@ 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;
}
sb->s_feature_ro_compat &= ~EXT4_FEATURE_RO_COMPAT_QUOTA;
}
@@ -1111,9 +1112,9 @@ 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 (sb->s_rev_level == EXT2_GOOD_OLD_REV &&
@@ -1222,47 +1223,55 @@ static void handle_quota_options(ext2_fi
{
quota_ctx_t qctx;
ext2_ino_t qf_ino;
+ quota_type_t 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,
- QFMT_VFS_V1)) > 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,
- QFMT_VFS_V1)) > 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,
+ QFMT_VFS_V1)) > 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) {
fprintf(stderr, "%s", _("\nWarning: the quota feature is still "
"under development\n"
"See https://ext4.wiki.kernel.org/"
"index.php/Quota for more information\n\n"));
fs->super->s_feature_ro_compat |= EXT4_FEATURE_RO_COMPAT_QUOTA;
ext2fs_mark_super_dirty(fs);
- } else if (!fs->super->s_usr_quota_inum &&
- !fs->super->s_grp_quota_inum) {
- fs->super->s_feature_ro_compat &= ~EXT4_FEATURE_RO_COMPAT_QUOTA;
- 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;
@@ -1291,13 +1300,13 @@ static void parse_quota_opts(const char
}
if (strcmp(token, "usrquota") == 0) {
- usrquota = QOPT_ENABLE;
+ quota_enable[USRQUOTA] = QOPT_ENABLE;
} else if (strcmp(token, "^usrquota") == 0) {
- usrquota = QOPT_DISABLE;
+ quota_enable[USRQUOTA] = QOPT_DISABLE;
} else if (strcmp(token, "grpquota") == 0) {
- grpquota = QOPT_ENABLE;
+ quota_enable[GRPQUOTA] = QOPT_ENABLE;
} else if (strcmp(token, "^grpquota") == 0) {
- grpquota = QOPT_DISABLE;
+ quota_enable[GRPQUOTA] = QOPT_DISABLE;
} else {
fputs(_("\nBad quota options specified.\n\n"
"Following valid quota options are available "
Index: e2fsprogs.git/debugfs/set_fields.c
===================================================================
--- e2fsprogs.git.orig/debugfs/set_fields.c
+++ e2fsprogs.git/debugfs/set_fields.c
@@ -39,6 +39,7 @@
#include "debugfs.h"
#include "uuid/uuid.h"
#include "e2p/e2p.h"
+#include "quota/quotaio.h"
static struct ext2_super_block set_sb;
static struct ext2_inode_large set_inode;
@@ -147,8 +148,8 @@ static struct field_set_info super_field
NULL, 8, parse_uint },
{ "snapshot_list", &set_sb.s_snapshot_list, NULL, 4, parse_uint },
{ "mount_opts", &set_sb.s_mount_opts, NULL, 64, parse_string },
- { "usr_quota_inum", &set_sb.s_usr_quota_inum, NULL, 4, parse_uint },
- { "grp_quota_inum", &set_sb.s_grp_quota_inum, NULL, 4, parse_uint },
+ { "usr_quota_inum", &set_sb.s_quota_inum[0], NULL, 4, parse_uint },
+ { "grp_quota_inum", &set_sb.s_quota_inum[1], NULL, 4, parse_uint },
{ "overhead_blocks", &set_sb.s_overhead_blocks, NULL, 4, parse_uint },
{ "checksum", &set_sb.s_checksum, NULL, 4, parse_uint },
{ "checksum_type", &set_sb.s_checksum_type, NULL, 1, parse_uint },
Index: e2fsprogs.git/lib/ext2fs/tst_super_size.c
===================================================================
--- e2fsprogs.git.orig/lib/ext2fs/tst_super_size.c
+++ e2fsprogs.git/lib/ext2fs/tst_super_size.c
@@ -132,8 +132,7 @@ int main(int argc, char **argv)
check_field(s_last_error_block, 8);
check_field(s_last_error_func, 32);
check_field(s_mount_opts, 64);
- check_field(s_usr_quota_inum, 4);
- check_field(s_grp_quota_inum, 4);
+ check_field(s_quota_inum, 4 * 2);
check_field(s_overhead_blocks, 4);
check_field(s_reserved, 108 * 4);
check_field(s_checksum, 4);
Index: e2fsprogs.git/lib/quota/quotaio_tree.c
===================================================================
--- e2fsprogs.git.orig/lib/quota/quotaio_tree.c
+++ e2fsprogs.git/lib/quota/quotaio_tree.c
@@ -586,7 +586,7 @@ static void check_reference(struct quota
"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,
Index: e2fsprogs.git/misc/mke2fs.c
===================================================================
--- e2fsprogs.git.orig/misc/mke2fs.c
+++ e2fsprogs.git/misc/mke2fs.c
@@ -95,7 +95,7 @@ int journal_flags;
static int lazy_itable_init;
static char *bad_blocks_filename = NULL;
static __u32 fs_stride;
-static int quotatype = -1; /* Initialize both user and group
quotas by default */
+static unsigned int quotatype_bits = QUOTA_ALL_BIT; /* Initialize
all quotas by default */
static __u64 offset;
static struct ext2_super_block fs_param;
@@ -916,9 +916,9 @@ static void parse_extended_opts(struct e
continue;
}
if (!strncmp(arg, "usr", 3)) {
- quotatype = 0;
+ quotatype_bits = QUOTA_USR_BIT;
} else if (!strncmp(arg, "grp", 3)) {
- quotatype = 1;
+ quotatype_bits = QUOTA_GRP_BIT;
} else {
fprintf(stderr,
_("Invalid quotatype parameter: %s\n"),
@@ -2444,7 +2444,7 @@ static int create_quota_inodes(ext2_fils
quota_init_context(&qctx, fs, -1);
quota_compute_usage(qctx);
- quota_write_inode(qctx, quotatype);
+ quota_write_inode(qctx, quotatype_bits);
quota_release_context(&qctx);
return 0;
--
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