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Commit 1bdf4535 authored Jun 08, 2015 by Abhi Das Committed by Bob Peterson Jun 08, 2015

gfs2: s64 cast for negative quota value



One-line fix to cast quota value to s64 before comparison.
By default the quantity is treated as u64.

Signed-off-by: Abhi Das <adas@redhat.com>
Signed-off-by: Bob Peterson <rpeterso@redhat.com>
Acked-by: Steven Whitehouse <swhiteho@redhat.com>

parent 9cde2898

fs/gfs2/quota.c

+1 −1

Original line number	Diff line number	Diff line
		@@ -798,7 +798,7 @@ static int gfs2_adjust_quota(struct gfs2_inode *ip, loff_t loc,
		loc -= sizeof(q); /* gfs2_internal_read would've advanced the loc ptr */
		err = -EIO;
		be64_add_cpu(&q.qu_value, change);
		if (be64_to_cpu(q.qu_value) < 0)
		if (((s64)be64_to_cpu(q.qu_value)) < 0)
		q.qu_value = 0; /* Never go negative on quota usage */
		qd->qd_qb.qb_value = q.qu_value;
		if (fdq) {