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Properly handle unsigned comparison.

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MFC after: 2 weeks
This commit is contained in:
Kirk McKusick 2013-12-30 06:19:42 +00:00
parent 443b507745
commit 9cd7cb1bf1
1 changed files with 4 additions and 10 deletions
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14
sys/ufs/ufs/ufs_quota.c
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@ -307,7 +307,6 @@ int
chkiq(struct inode *ip, int change, struct ucred *cred, int flags)
{
struct dquot *dq;
ino_t ncurinodes;
int i, error, warn, do_check;
#ifdef DIAGNOSTIC
@ -322,10 +321,8 @@ chkiq(struct inode *ip, int change, struct ucred *cred, int flags)
continue;
DQI_LOCK(dq);
DQI_WAIT(dq, PINOD+1, "chkiq1");
ncurinodes = dq->dq_curinodes + change;
/* XXX: ncurinodes is unsigned */
if (dq->dq_curinodes != 0 && ncurinodes >= 0)
dq->dq_curinodes = ncurinodes;
if (dq->dq_curinodes >= -change)
dq->dq_curinodes += change;
else
dq->dq_curinodes = 0;
dq->dq_flags &= ~DQ_INODS;
@ -359,11 +356,8 @@ chkiq(struct inode *ip, int change, struct ucred *cred, int flags)
continue;
DQI_LOCK(dq);
DQI_WAIT(dq, PINOD+1, "chkiq3");
ncurinodes = dq->dq_curinodes - change;
/* XXX: ncurinodes is unsigned */
if (dq->dq_curinodes != 0 &&
ncurinodes >= 0)
dq->dq_curinodes = ncurinodes;
if (dq->dq_curinodes >= change)
dq->dq_curinodes -= change;
else
dq->dq_curinodes = 0;
dq->dq_flags &= ~DQ_INODS;