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quota: use time64_t internally 

The quota subsystem has two formats, the old v1 format using architecture
specific time_t values on the on-disk format, while the v2 format
(introduced in Linux 2.5.16 and 2.4.22) uses fixed 64-bit little-endian.

While there is no future for the v1 format beyond y2038, the v2 format
is almost there on 32-bit architectures, as both the user interface
and the on-disk format use 64-bit timestamps, just not the time_t
inbetween.

This changes the internal representation to use time64_t, which will
end up doing the right thing everywhere for v2 format.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Jan Kara <jack@suse.cz>
This commit is contained in:
Arnd Bergmann 2016-06-17 22:03:16 +02:00 committed by Jan Kara
parent b9d8905e4a
commit e008bb6134
3 changed files with 11 additions and 11 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
fs/ocfs2/quota_global.c
View File

@ -483,7 +483,7 @@ int __ocfs2_sync_dquot(struct dquot *dquot, int freeing)
struct ocfs2_mem_dqinfo *info = sb_dqinfo(sb, type)->dqi_priv; struct ocfs2_mem_dqinfo *info = sb_dqinfo(sb, type)->dqi_priv;
struct ocfs2_global_disk_dqblk dqblk; struct ocfs2_global_disk_dqblk dqblk;
s64 spacechange, inodechange; s64 spacechange, inodechange;
time_t olditime, oldbtime; time64_t olditime, oldbtime;
err = sb->s_op->quota_read(sb, type, (char *)&dqblk, err = sb->s_op->quota_read(sb, type, (char *)&dqblk,
sizeof(struct ocfs2_global_disk_dqblk), sizeof(struct ocfs2_global_disk_dqblk),

16
fs/quota/dquot.c
View File

@ -1133,7 +1133,7 @@ static void dquot_decr_inodes(struct dquot *dquot, qsize_t number)
else else
dquot->dq_dqb.dqb_curinodes = 0; dquot->dq_dqb.dqb_curinodes = 0;
if (dquot->dq_dqb.dqb_curinodes <= dquot->dq_dqb.dqb_isoftlimit) if (dquot->dq_dqb.dqb_curinodes <= dquot->dq_dqb.dqb_isoftlimit)
dquot->dq_dqb.dqb_itime = (time_t) 0; dquot->dq_dqb.dqb_itime = (time64_t) 0;
clear_bit(DQ_INODES_B, &dquot->dq_flags); clear_bit(DQ_INODES_B, &dquot->dq_flags);
} }
@ -1145,7 +1145,7 @@ static void dquot_decr_space(struct dquot *dquot, qsize_t number)
else else
dquot->dq_dqb.dqb_curspace = 0; dquot->dq_dqb.dqb_curspace = 0;
if (dquot->dq_dqb.dqb_curspace <= dquot->dq_dqb.dqb_bsoftlimit) if (dquot->dq_dqb.dqb_curspace <= dquot->dq_dqb.dqb_bsoftlimit)
dquot->dq_dqb.dqb_btime = (time_t) 0; dquot->dq_dqb.dqb_btime = (time64_t) 0;
clear_bit(DQ_BLKS_B, &dquot->dq_flags); clear_bit(DQ_BLKS_B, &dquot->dq_flags);
} }
@ -1292,7 +1292,7 @@ static int check_idq(struct dquot *dquot, qsize_t inodes,
if (dquot->dq_dqb.dqb_isoftlimit && if (dquot->dq_dqb.dqb_isoftlimit &&
newinodes > dquot->dq_dqb.dqb_isoftlimit && newinodes > dquot->dq_dqb.dqb_isoftlimit &&
dquot->dq_dqb.dqb_itime && dquot->dq_dqb.dqb_itime &&
get_seconds() >= dquot->dq_dqb.dqb_itime && ktime_get_real_seconds() >= dquot->dq_dqb.dqb_itime &&
!ignore_hardlimit(dquot)) { !ignore_hardlimit(dquot)) {
prepare_warning(warn, dquot, QUOTA_NL_ISOFTLONGWARN); prepare_warning(warn, dquot, QUOTA_NL_ISOFTLONGWARN);
return -EDQUOT; return -EDQUOT;
@ -1302,7 +1302,7 @@ static int check_idq(struct dquot *dquot, qsize_t inodes,
newinodes > dquot->dq_dqb.dqb_isoftlimit && newinodes > dquot->dq_dqb.dqb_isoftlimit &&
dquot->dq_dqb.dqb_itime == 0) { dquot->dq_dqb.dqb_itime == 0) {
prepare_warning(warn, dquot, QUOTA_NL_ISOFTWARN); prepare_warning(warn, dquot, QUOTA_NL_ISOFTWARN);
dquot->dq_dqb.dqb_itime = get_seconds() + dquot->dq_dqb.dqb_itime = ktime_get_real_seconds() +
sb_dqopt(dquot->dq_sb)->info[dquot->dq_id.type].dqi_igrace; sb_dqopt(dquot->dq_sb)->info[dquot->dq_id.type].dqi_igrace;
} }
@ -1334,7 +1334,7 @@ static int check_bdq(struct dquot *dquot, qsize_t space, int prealloc,
if (dquot->dq_dqb.dqb_bsoftlimit && if (dquot->dq_dqb.dqb_bsoftlimit &&
tspace > dquot->dq_dqb.dqb_bsoftlimit && tspace > dquot->dq_dqb.dqb_bsoftlimit &&
dquot->dq_dqb.dqb_btime && dquot->dq_dqb.dqb_btime &&
get_seconds() >= dquot->dq_dqb.dqb_btime && ktime_get_real_seconds() >= dquot->dq_dqb.dqb_btime &&
!ignore_hardlimit(dquot)) { !ignore_hardlimit(dquot)) {
if (!prealloc) if (!prealloc)
prepare_warning(warn, dquot, QUOTA_NL_BSOFTLONGWARN); prepare_warning(warn, dquot, QUOTA_NL_BSOFTLONGWARN);
@ -1346,7 +1346,7 @@ static int check_bdq(struct dquot *dquot, qsize_t space, int prealloc,
dquot->dq_dqb.dqb_btime == 0) { dquot->dq_dqb.dqb_btime == 0) {
if (!prealloc) { if (!prealloc) {
prepare_warning(warn, dquot, QUOTA_NL_BSOFTWARN); prepare_warning(warn, dquot, QUOTA_NL_BSOFTWARN);
dquot->dq_dqb.dqb_btime = get_seconds() + dquot->dq_dqb.dqb_btime = ktime_get_real_seconds() +
sb_dqopt(sb)->info[dquot->dq_id.type].dqi_bgrace; sb_dqopt(sb)->info[dquot->dq_id.type].dqi_bgrace;
} }
else else
@ -2695,7 +2695,7 @@ static int do_set_dqblk(struct dquot *dquot, struct qc_dqblk *di)
clear_bit(DQ_BLKS_B, &dquot->dq_flags); clear_bit(DQ_BLKS_B, &dquot->dq_flags);
} else if (!(di->d_fieldmask & QC_SPC_TIMER)) } else if (!(di->d_fieldmask & QC_SPC_TIMER))
/* Set grace only if user hasn't provided his own... */ /* Set grace only if user hasn't provided his own... */
dm->dqb_btime = get_seconds() + dqi->dqi_bgrace; dm->dqb_btime = ktime_get_real_seconds() + dqi->dqi_bgrace;
} }
if (check_ilim) { if (check_ilim) {
if (!dm->dqb_isoftlimit || if (!dm->dqb_isoftlimit ||
@ -2704,7 +2704,7 @@ static int do_set_dqblk(struct dquot *dquot, struct qc_dqblk *di)
clear_bit(DQ_INODES_B, &dquot->dq_flags); clear_bit(DQ_INODES_B, &dquot->dq_flags);
} else if (!(di->d_fieldmask & QC_INO_TIMER)) } else if (!(di->d_fieldmask & QC_INO_TIMER))
/* Set grace only if user hasn't provided his own... */ /* Set grace only if user hasn't provided his own... */
dm->dqb_itime = get_seconds() + dqi->dqi_igrace; dm->dqb_itime = ktime_get_real_seconds() + dqi->dqi_igrace;
} }
if (dm->dqb_bhardlimit || dm->dqb_bsoftlimit || dm->dqb_ihardlimit || if (dm->dqb_bhardlimit || dm->dqb_bsoftlimit || dm->dqb_ihardlimit ||
dm->dqb_isoftlimit) dm->dqb_isoftlimit)

4
include/linux/quota.h
View File

@ -200,8 +200,8 @@ struct mem_dqblk {
qsize_t dqb_ihardlimit; /* absolute limit on allocated inodes */ qsize_t dqb_ihardlimit; /* absolute limit on allocated inodes */
qsize_t dqb_isoftlimit; /* preferred inode limit */ qsize_t dqb_isoftlimit; /* preferred inode limit */
qsize_t dqb_curinodes; /* current # allocated inodes */ qsize_t dqb_curinodes; /* current # allocated inodes */
time_t dqb_btime; /* time limit for excessive disk use */ time64_t dqb_btime; /* time limit for excessive disk use */
time_t dqb_itime; /* time limit for excessive inode use */ time64_t dqb_itime; /* time limit for excessive inode use */
}; };
/* /*