xiaomi-sm8450/android_kernel_xiaomi_sm8450
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

[GFS2] Use mutices rather than semaphores

Browse Source 
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>
This commit is contained in:
Steven Whitehouse
2006-02-21 12:51:39 +00:00
parent 5c4e9e0366
commit f55ab26a8f
17 changed files with 118 additions and 118 deletions
Download Patch File Download Diff File Expand all files Collapse all files

20
fs/gfs2/super.c
View File

@@ -279,7 +279,7 @@ int gfs2_jindex_hold(struct gfs2_sbd *sdp, struct gfs2_holder *ji_gh)
name.name = buf;
down(&sdp->sd_jindex_mutex);
mutex_lock(&sdp->sd_jindex_mutex);
for (;;) {
error = gfs2_glock_nq_init(dip->i_gl, LM_ST_SHARED,
@@ -317,7 +317,7 @@ int gfs2_jindex_hold(struct gfs2_sbd *sdp, struct gfs2_holder *ji_gh)
spin_unlock(&sdp->sd_jindex_spin);
}
up(&sdp->sd_jindex_mutex);
mutex_unlock(&sdp->sd_jindex_mutex);
return error;
}
@@ -608,9 +608,9 @@ void gfs2_statfs_change(struct gfs2_sbd *sdp, int64_t total, int64_t free,
if (error)
return;
down(&sdp->sd_statfs_mutex);
mutex_lock(&sdp->sd_statfs_mutex);
gfs2_trans_add_bh(l_ip->i_gl, l_bh, 1);
up(&sdp->sd_statfs_mutex);
mutex_unlock(&sdp->sd_statfs_mutex);
spin_lock(&sdp->sd_statfs_spin);
l_sc->sc_total += total;
@@ -659,9 +659,9 @@ int gfs2_statfs_sync(struct gfs2_sbd *sdp)
if (error)
goto out_bh2;
down(&sdp->sd_statfs_mutex);
mutex_lock(&sdp->sd_statfs_mutex);
gfs2_trans_add_bh(l_ip->i_gl, l_bh, 1);
up(&sdp->sd_statfs_mutex);
mutex_unlock(&sdp->sd_statfs_mutex);
spin_lock(&sdp->sd_statfs_spin);
m_sc->sc_total += l_sc->sc_total;
@@ -910,7 +910,7 @@ int gfs2_freeze_fs(struct gfs2_sbd *sdp)
{
int error = 0;
down(&sdp->sd_freeze_lock);
mutex_lock(&sdp->sd_freeze_lock);
if (!sdp->sd_freeze_count++) {
error = gfs2_lock_fs_check_clean(sdp, &sdp->sd_freeze_gh);
@@ -918,7 +918,7 @@ int gfs2_freeze_fs(struct gfs2_sbd *sdp)
sdp->sd_freeze_count--;
}
up(&sdp->sd_freeze_lock);
mutex_unlock(&sdp->sd_freeze_lock);
return error;
}
@@ -935,11 +935,11 @@ int gfs2_freeze_fs(struct gfs2_sbd *sdp)
void gfs2_unfreeze_fs(struct gfs2_sbd *sdp)
{
down(&sdp->sd_freeze_lock);
mutex_lock(&sdp->sd_freeze_lock);
if (sdp->sd_freeze_count && !--sdp->sd_freeze_count)
gfs2_glock_dq_uninit(&sdp->sd_freeze_gh);
up(&sdp->sd_freeze_lock);
mutex_unlock(&sdp->sd_freeze_lock);
}