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authorEric W. Biederman <ebiederm@xmission.com>2013-01-31 18:33:38 -0800
committerEric W. Biederman <ebiederm@xmission.com>2013-02-13 06:15:03 -0800
commit2f6c9896f71e6b6c1c565ea76dd9f5e89579c120 (patch)
treeaa6cd3c4349c6268d68f93c2535818b664511ac5 /fs/gfs2
parent558e85289fca3d3397882442d1a695936c4f2662 (diff)
downloadlinux-2f6c9896f71e6b6c1c565ea76dd9f5e89579c120.tar.gz
gfs2: Introduce qd2index
Both qd_alloc and qd2offset perform the exact same computation to get an index from a gfs2_quota_data. Make life a little simpler and factor out this index computation. Cc: Steven Whitehouse <swhiteho@redhat.com> Signed-off-by: "Eric W. Biederman" <ebiederm@xmission.com>
Diffstat (limited to 'fs/gfs2')
-rw-r--r--fs/gfs2/quota.c10
1 files changed, 8 insertions, 2 deletions
diff --git a/fs/gfs2/quota.c b/fs/gfs2/quota.c
index f8279eed56e..0e7c982377a 100644
--- a/fs/gfs2/quota.c
+++ b/fs/gfs2/quota.c
@@ -120,11 +120,17 @@ out:
return (atomic_read(&qd_lru_count) * sysctl_vfs_cache_pressure) / 100;
}
+static u64 qd2index(struct gfs2_quota_data *qd)
+{
+ return (2 * (u64)qd->qd_id) +
+ test_bit(QDF_USER, &qd->qd_flags) ? 0 : 1;
+}
+
static u64 qd2offset(struct gfs2_quota_data *qd)
{
u64 offset;
- offset = 2 * (u64)qd->qd_id + !test_bit(QDF_USER, &qd->qd_flags);
+ offset = qd2index(qd);
offset *= sizeof(struct gfs2_quota);
return offset;
@@ -147,7 +153,7 @@ static int qd_alloc(struct gfs2_sbd *sdp, int user, u32 id,
qd->qd_slot = -1;
INIT_LIST_HEAD(&qd->qd_reclaim);
- error = gfs2_glock_get(sdp, 2 * (u64)id + !user,
+ error = gfs2_glock_get(sdp, qd2index(qd),
&gfs2_quota_glops, CREATE, &qd->qd_gl);
if (error)
goto fail;