xfs: cleanup quota check on disk blocks and inodes reservations
This patch is a cleanup of quota check on disk blocks and inodes reservations, and changes it as follows. (1) add a total_count variable to store the total number of current usages and new reservations for disk blocks and inodes, respectively. (2) make it more readable to check if the local variables softlimit and hardlimit are positive. It has been changed as follows. if (softlimit > 0ULL) -> if (softlimit) if (hardlimit > 0ULL) -> if (hardlimit) This is because they are defined as xfs_qcnt_t which is unsigned. Signed-off-by: Mitsuo Hayasaka <mitsuo.hayasaka.hu@hitachi.com> Cc: Ben Myers <bpm@sgi.com> Cc: Alex Elder <elder@kernel.org> Cc: Christoph Hellwig <hch@lst.de> Reviewed-by: Mark Tinguely <tinguely@sgi.com> Reviewed-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Ben Myers <bpm@sgi.com>
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@ -605,7 +605,7 @@ xfs_trans_dqresv(
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time_t timer;
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xfs_qwarncnt_t warns;
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xfs_qwarncnt_t warnlimit;
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xfs_qcnt_t count;
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xfs_qcnt_t total_count;
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xfs_qcnt_t *resbcountp;
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xfs_quotainfo_t *q = mp->m_quotainfo;
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@ -648,13 +648,12 @@ xfs_trans_dqresv(
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* hardlimit or exceed the timelimit if we allocate
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* nblks.
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*/
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if (hardlimit > 0ULL &&
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hardlimit < nblks + *resbcountp) {
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total_count = *resbcountp + nblks;
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if (hardlimit && total_count > hardlimit) {
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xfs_quota_warn(mp, dqp, QUOTA_NL_BHARDWARN);
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goto error_return;
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}
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if (softlimit > 0ULL &&
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softlimit < nblks + *resbcountp) {
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if (softlimit && total_count > softlimit) {
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if ((timer != 0 && get_seconds() > timer) ||
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(warns != 0 && warns >= warnlimit)) {
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xfs_quota_warn(mp, dqp,
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@ -666,7 +665,7 @@ xfs_trans_dqresv(
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}
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}
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if (ninos > 0) {
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count = be64_to_cpu(dqp->q_core.d_icount);
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total_count = be64_to_cpu(dqp->q_core.d_icount) + ninos;
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timer = be32_to_cpu(dqp->q_core.d_itimer);
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warns = be16_to_cpu(dqp->q_core.d_iwarns);
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warnlimit = dqp->q_mount->m_quotainfo->qi_iwarnlimit;
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@ -677,13 +676,11 @@ xfs_trans_dqresv(
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if (!softlimit)
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softlimit = q->qi_isoftlimit;
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if (hardlimit > 0ULL &&
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hardlimit < ninos + count) {
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if (hardlimit && total_count > hardlimit) {
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xfs_quota_warn(mp, dqp, QUOTA_NL_IHARDWARN);
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goto error_return;
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}
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if (softlimit > 0ULL &&
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softlimit < ninos + count) {
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if (softlimit && total_count > softlimit) {
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if ((timer != 0 && get_seconds() > timer) ||
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(warns != 0 && warns >= warnlimit)) {
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xfs_quota_warn(mp, dqp,
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