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authorSteven Whitehouse <swhiteho@redhat.com>2006-02-21 12:51:39 +0000
committerSteven Whitehouse <swhiteho@redhat.com>2006-02-21 12:51:39 +0000
commitf55ab26a8f92a23988c3e6da28dae4741933a4e2 (patch)
treeb6f9e89ce1b2ccde8d81314aeea06f6a02f882f7 /fs/gfs2/quota.c
parent5c4e9e036678fae65c9288e1c00a6f33cd447283 (diff)
downloadlwn-f55ab26a8f92a23988c3e6da28dae4741933a4e2.tar.gz
lwn-f55ab26a8f92a23988c3e6da28dae4741933a4e2.zip
[GFS2] Use mutices rather than semaphores
As well as a number of minor bug fixes, this patch changes GFS to use mutices rather than semaphores. This results in better information in case there are any locking problems. Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
Diffstat (limited to 'fs/gfs2/quota.c')
-rw-r--r--fs/gfs2/quota.c16
1 files changed, 8 insertions, 8 deletions
diff --git a/fs/gfs2/quota.c b/fs/gfs2/quota.c
index 7b5573946f19..c0352cf330a3 100644
--- a/fs/gfs2/quota.c
+++ b/fs/gfs2/quota.c
@@ -251,10 +251,10 @@ static int bh_get(struct gfs2_quota_data *qd)
struct buffer_head *bh;
int error;
- down(&sdp->sd_quota_mutex);
+ mutex_lock(&sdp->sd_quota_mutex);
if (qd->qd_bh_count++) {
- up(&sdp->sd_quota_mutex);
+ mutex_unlock(&sdp->sd_quota_mutex);
return 0;
}
@@ -276,7 +276,7 @@ static int bh_get(struct gfs2_quota_data *qd)
(bh->b_data + sizeof(struct gfs2_meta_header) +
offset * sizeof(struct gfs2_quota_change));
- up(&sdp->sd_quota_mutex);
+ mutex_lock(&sdp->sd_quota_mutex);
return 0;
@@ -285,7 +285,7 @@ static int bh_get(struct gfs2_quota_data *qd)
fail:
qd->qd_bh_count--;
- up(&sdp->sd_quota_mutex);
+ mutex_unlock(&sdp->sd_quota_mutex);
return error;
}
@@ -293,14 +293,14 @@ static void bh_put(struct gfs2_quota_data *qd)
{
struct gfs2_sbd *sdp = qd->qd_gl->gl_sbd;
- down(&sdp->sd_quota_mutex);
+ mutex_lock(&sdp->sd_quota_mutex);
gfs2_assert(sdp, qd->qd_bh_count);
if (!--qd->qd_bh_count) {
brelse(qd->qd_bh);
qd->qd_bh = NULL;
qd->qd_bh_qc = NULL;
}
- up(&sdp->sd_quota_mutex);
+ mutex_unlock(&sdp->sd_quota_mutex);
}
static int qd_fish(struct gfs2_sbd *sdp, struct gfs2_quota_data **qdp)
@@ -529,7 +529,7 @@ static void do_qc(struct gfs2_quota_data *qd, int64_t change)
struct gfs2_quota_change *qc = qd->qd_bh_qc;
int64_t x;
- down(&sdp->sd_quota_mutex);
+ mutex_lock(&sdp->sd_quota_mutex);
gfs2_trans_add_bh(ip->i_gl, qd->qd_bh, 1);
if (!test_bit(QDF_CHANGE, &qd->qd_flags)) {
@@ -560,7 +560,7 @@ static void do_qc(struct gfs2_quota_data *qd, int64_t change)
slot_hold(qd);
}
- up(&sdp->sd_quota_mutex);
+ mutex_unlock(&sdp->sd_quota_mutex);
}
/**