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Old 09-29-2010, 02:37 PM
Steven Whitehouse
 
Default GFS2: Fix spectator umount issue

>From c741c4551237f9c1bdcd3b1b39b0883bd19a3723 Mon Sep 17 00:00:00 2001
From: Steven Whitehouse <swhiteho@redhat.com>
Date: Wed, 29 Sep 2010 14:20:52 +0100
Subject: GFS2: Fix spectator umount issue

The tests further down the recovery function relating to
unlocking the journal need to be updated to match the
intial test. Also, a test in the umount code which was
surplus to requirements has been removed. Umounting
spectator mounts now works correctly, as expected.

Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>

diff --git a/fs/gfs2/glock.c b/fs/gfs2/glock.c
index c3f2a5c..8777885 100644
--- a/fs/gfs2/glock.c
+++ b/fs/gfs2/glock.c
@@ -1517,7 +1517,7 @@ static void clear_glock(struct gfs2_glock *gl)
spin_unlock(&lru_lock);

spin_lock(&gl->gl_spin);
- if (find_first_holder(gl) == NULL && gl->gl_state != LM_ST_UNLOCKED)
+ if (gl->gl_state != LM_ST_UNLOCKED)
handle_callback(gl, LM_ST_UNLOCKED, 0);
spin_unlock(&gl->gl_spin);
gfs2_glock_hold(gl);
diff --git a/fs/gfs2/recovery.c b/fs/gfs2/recovery.c
index 666548e..f2a02ed 100644
--- a/fs/gfs2/recovery.c
+++ b/fs/gfs2/recovery.c
@@ -455,12 +455,13 @@ void gfs2_recover_func(struct work_struct *work)
int ro = 0;
unsigned int pass;
int error;
+ int jlocked = 0;

if (sdp->sd_args.ar_spectator ||
(jd->jd_jid != sdp->sd_lockstruct.ls_jid)) {
fs_info(sdp, "jid=%u: Trying to acquire journal lock...
",
jd->jd_jid);
-
+ jlocked = 1;
/* Acquire the journal lock so we can do recovery */

error = gfs2_glock_nq_num(sdp, jd->jd_jid, &gfs2_journal_glops,
@@ -555,13 +556,12 @@ void gfs2_recover_func(struct work_struct *work)
jd->jd_jid, t);
}

- if (jd->jd_jid != sdp->sd_lockstruct.ls_jid)
- gfs2_glock_dq_uninit(&ji_gh);
-
gfs2_recovery_done(sdp, jd->jd_jid, LM_RD_SUCCESS);

- if (jd->jd_jid != sdp->sd_lockstruct.ls_jid)
+ if (jlocked) {
+ gfs2_glock_dq_uninit(&ji_gh);
gfs2_glock_dq_uninit(&j_gh);
+ }

fs_info(sdp, "jid=%u: Done
", jd->jd_jid);
goto done;
@@ -569,7 +569,7 @@ void gfs2_recover_func(struct work_struct *work)
fail_gunlock_tr:
gfs2_glock_dq_uninit(&t_gh);
fail_gunlock_ji:
- if (jd->jd_jid != sdp->sd_lockstruct.ls_jid) {
+ if (jlocked) {
gfs2_glock_dq_uninit(&ji_gh);
fail_gunlock_j:
gfs2_glock_dq_uninit(&j_gh);
--
1.7.1.1
 
Old 10-18-2010, 02:15 PM
Steven Whitehouse
 
Default GFS2: Fix spectator umount issue

The tests further down the recovery function relating to
unlocking the journal need to be updated to match the
intial test. Also, a test in the umount code which was
surplus to requirements has been removed. Umounting
spectator mounts now works correctly, as expected.

Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>

diff --git a/fs/gfs2/glock.c b/fs/gfs2/glock.c
index c3f2a5c..8777885 100644
--- a/fs/gfs2/glock.c
+++ b/fs/gfs2/glock.c
@@ -1517,7 +1517,7 @@ static void clear_glock(struct gfs2_glock *gl)
spin_unlock(&lru_lock);

spin_lock(&gl->gl_spin);
- if (find_first_holder(gl) == NULL && gl->gl_state != LM_ST_UNLOCKED)
+ if (gl->gl_state != LM_ST_UNLOCKED)
handle_callback(gl, LM_ST_UNLOCKED, 0);
spin_unlock(&gl->gl_spin);
gfs2_glock_hold(gl);
diff --git a/fs/gfs2/recovery.c b/fs/gfs2/recovery.c
index 666548e..f2a02ed 100644
--- a/fs/gfs2/recovery.c
+++ b/fs/gfs2/recovery.c
@@ -455,12 +455,13 @@ void gfs2_recover_func(struct work_struct *work)
int ro = 0;
unsigned int pass;
int error;
+ int jlocked = 0;

if (sdp->sd_args.ar_spectator ||
(jd->jd_jid != sdp->sd_lockstruct.ls_jid)) {
fs_info(sdp, "jid=%u: Trying to acquire journal lock...
",
jd->jd_jid);
-
+ jlocked = 1;
/* Acquire the journal lock so we can do recovery */

error = gfs2_glock_nq_num(sdp, jd->jd_jid, &gfs2_journal_glops,
@@ -555,13 +556,12 @@ void gfs2_recover_func(struct work_struct *work)
jd->jd_jid, t);
}

- if (jd->jd_jid != sdp->sd_lockstruct.ls_jid)
- gfs2_glock_dq_uninit(&ji_gh);
-
gfs2_recovery_done(sdp, jd->jd_jid, LM_RD_SUCCESS);

- if (jd->jd_jid != sdp->sd_lockstruct.ls_jid)
+ if (jlocked) {
+ gfs2_glock_dq_uninit(&ji_gh);
gfs2_glock_dq_uninit(&j_gh);
+ }

fs_info(sdp, "jid=%u: Done
", jd->jd_jid);
goto done;
@@ -569,7 +569,7 @@ void gfs2_recover_func(struct work_struct *work)
fail_gunlock_tr:
gfs2_glock_dq_uninit(&t_gh);
fail_gunlock_ji:
- if (jd->jd_jid != sdp->sd_lockstruct.ls_jid) {
+ if (jlocked) {
gfs2_glock_dq_uninit(&ji_gh);
fail_gunlock_j:
gfs2_glock_dq_uninit(&j_gh);
--
1.7.1.1
 

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