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Diffstat (limited to 'fs/gfs2/recovery.c')
-rw-r--r--fs/gfs2/recovery.c144
1 files changed, 84 insertions, 60 deletions
diff --git a/fs/gfs2/recovery.c b/fs/gfs2/recovery.c
index 6fb07d67ca8..94555d4c569 100644
--- a/fs/gfs2/recovery.c
+++ b/fs/gfs2/recovery.c
@@ -7,20 +7,19 @@
* of the GNU General Public License version 2.
*/
+#include <linux/module.h>
#include <linux/slab.h>
#include <linux/spinlock.h>
#include <linux/completion.h>
#include <linux/buffer_head.h>
#include <linux/gfs2_ondisk.h>
#include <linux/crc32.h>
-#include <linux/lm_interface.h>
#include "gfs2.h"
#include "incore.h"
#include "bmap.h"
#include "glock.h"
#include "glops.h"
-#include "lm.h"
#include "lops.h"
#include "meta_io.h"
#include "recovery.h"
@@ -28,6 +27,8 @@
#include "util.h"
#include "dir.h"
+struct workqueue_struct *gfs_recovery_wq;
+
int gfs2_replay_read_block(struct gfs2_jdesc *jd, unsigned int blk,
struct buffer_head **bh)
{
@@ -51,9 +52,9 @@ int gfs2_replay_read_block(struct gfs2_jdesc *jd, unsigned int blk,
return error;
}
-int gfs2_revoke_add(struct gfs2_sbd *sdp, u64 blkno, unsigned int where)
+int gfs2_revoke_add(struct gfs2_jdesc *jd, u64 blkno, unsigned int where)
{
- struct list_head *head = &sdp->sd_revoke_list;
+ struct list_head *head = &jd->jd_revoke_list;
struct gfs2_revoke_replay *rr;
int found = 0;
@@ -69,7 +70,7 @@ int gfs2_revoke_add(struct gfs2_sbd *sdp, u64 blkno, unsigned int where)
return 0;
}
- rr = kmalloc(sizeof(struct gfs2_revoke_replay), GFP_KERNEL);
+ rr = kmalloc(sizeof(struct gfs2_revoke_replay), GFP_NOFS);
if (!rr)
return -ENOMEM;
@@ -80,13 +81,13 @@ int gfs2_revoke_add(struct gfs2_sbd *sdp, u64 blkno, unsigned int where)
return 1;
}
-int gfs2_revoke_check(struct gfs2_sbd *sdp, u64 blkno, unsigned int where)
+int gfs2_revoke_check(struct gfs2_jdesc *jd, u64 blkno, unsigned int where)
{
struct gfs2_revoke_replay *rr;
int wrap, a, b, revoke;
int found = 0;
- list_for_each_entry(rr, &sdp->sd_revoke_list, rr_list) {
+ list_for_each_entry(rr, &jd->jd_revoke_list, rr_list) {
if (rr->rr_blkno == blkno) {
found = 1;
break;
@@ -96,17 +97,17 @@ int gfs2_revoke_check(struct gfs2_sbd *sdp, u64 blkno, unsigned int where)
if (!found)
return 0;
- wrap = (rr->rr_where < sdp->sd_replay_tail);
- a = (sdp->sd_replay_tail < where);
+ wrap = (rr->rr_where < jd->jd_replay_tail);
+ a = (jd->jd_replay_tail < where);
b = (where < rr->rr_where);
revoke = (wrap) ? (a || b) : (a && b);
return revoke;
}
-void gfs2_revoke_clean(struct gfs2_sbd *sdp)
+void gfs2_revoke_clean(struct gfs2_jdesc *jd)
{
- struct list_head *head = &sdp->sd_revoke_list;
+ struct list_head *head = &jd->jd_revoke_list;
struct gfs2_revoke_replay *rr;
while (!list_empty(head)) {
@@ -150,7 +151,7 @@ static int get_log_header(struct gfs2_jdesc *jd, unsigned int blk,
struct gfs2_log_header_host *head)
{
struct buffer_head *bh;
- struct gfs2_log_header_host lh;
+ struct gfs2_log_header_host uninitialized_var(lh);
const u32 nothing = 0;
u32 hash;
int error;
@@ -410,7 +411,9 @@ static int clean_journal(struct gfs2_jdesc *jd, struct gfs2_log_header_host *hea
memset(lh, 0, sizeof(struct gfs2_log_header));
lh->lh_header.mh_magic = cpu_to_be32(GFS2_MAGIC);
lh->lh_header.mh_type = cpu_to_be32(GFS2_METATYPE_LH);
+ lh->lh_header.__pad0 = cpu_to_be64(0);
lh->lh_header.mh_format = cpu_to_be32(GFS2_FORMAT_LH);
+ lh->lh_header.mh_jid = cpu_to_be32(sdp->sd_jdesc->jd_jid);
lh->lh_sequence = cpu_to_be64(head->lh_sequence + 1);
lh->lh_flags = cpu_to_be32(GFS2_LOG_HEAD_UNMOUNT);
lh->lh_blkno = cpu_to_be32(lblock);
@@ -425,31 +428,44 @@ static int clean_journal(struct gfs2_jdesc *jd, struct gfs2_log_header_host *hea
return error;
}
-/**
- * gfs2_recover_journal - recovery a given journal
- * @jd: the struct gfs2_jdesc describing the journal
- *
- * Acquire the journal's lock, check to see if the journal is clean, and
- * do recovery if necessary.
- *
- * Returns: errno
- */
-int gfs2_recover_journal(struct gfs2_jdesc *jd)
+static void gfs2_recovery_done(struct gfs2_sbd *sdp, unsigned int jid,
+ unsigned int message)
{
+ char env_jid[20];
+ char env_status[20];
+ char *envp[] = { env_jid, env_status, NULL };
+ struct lm_lockstruct *ls = &sdp->sd_lockstruct;
+
+ ls->ls_recover_jid_done = jid;
+ ls->ls_recover_jid_status = message;
+ sprintf(env_jid, "JID=%d", jid);
+ sprintf(env_status, "RECOVERY=%s",
+ message == LM_RD_SUCCESS ? "Done" : "Failed");
+ kobject_uevent_env(&sdp->sd_kobj, KOBJ_CHANGE, envp);
+
+ if (sdp->sd_lockstruct.ls_ops->lm_recovery_result)
+ sdp->sd_lockstruct.ls_ops->lm_recovery_result(sdp, jid, message);
+}
+
+void gfs2_recover_func(struct work_struct *work)
+{
+ struct gfs2_jdesc *jd = container_of(work, struct gfs2_jdesc, jd_work);
struct gfs2_inode *ip = GFS2_I(jd->jd_inode);
struct gfs2_sbd *sdp = GFS2_SB(jd->jd_inode);
struct gfs2_log_header_host head;
- struct gfs2_holder j_gh, ji_gh, t_gh;
+ struct gfs2_holder j_gh, ji_gh, thaw_gh;
unsigned long t;
int ro = 0;
unsigned int pass;
int error;
+ int jlocked = 0;
- if (jd->jd_jid != sdp->sd_lockstruct.ls_jid) {
+ if (sdp->sd_args.ar_spectator ||
+ (jd->jd_jid != sdp->sd_lockstruct.ls_jid)) {
fs_info(sdp, "jid=%u: Trying to acquire journal lock...\n",
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,
@@ -492,15 +508,17 @@ int gfs2_recover_journal(struct gfs2_jdesc *jd)
t = jiffies;
- /* Acquire a shared hold on the transaction lock */
+ /* Acquire a shared hold on the freeze lock */
- error = gfs2_glock_nq_init(sdp->sd_trans_gl, LM_ST_SHARED,
- LM_FLAG_NOEXP | LM_FLAG_PRIORITY |
- GL_NOCANCEL | GL_NOCACHE, &t_gh);
+ error = gfs2_glock_nq_init(sdp->sd_freeze_gl, LM_ST_SHARED,
+ LM_FLAG_NOEXP | LM_FLAG_PRIORITY,
+ &thaw_gh);
if (error)
goto fail_gunlock_ji;
- if (test_bit(SDF_JOURNAL_CHECKED, &sdp->sd_flags)) {
+ if (test_bit(SDF_RORECOVERY, &sdp->sd_flags)) {
+ ro = 1;
+ } else if (test_bit(SDF_JOURNAL_CHECKED, &sdp->sd_flags)) {
if (!test_bit(SDF_JOURNAL_LIVE, &sdp->sd_flags))
ro = 1;
} else {
@@ -520,7 +538,7 @@ int gfs2_recover_journal(struct gfs2_jdesc *jd)
fs_warn(sdp, "jid=%u: Can't replay: read-only block "
"device\n", jd->jd_jid);
error = -EROFS;
- goto fail_gunlock_tr;
+ goto fail_gunlock_thaw;
}
fs_info(sdp, "jid=%u: Replaying journal...\n", jd->jd_jid);
@@ -531,63 +549,69 @@ int gfs2_recover_journal(struct gfs2_jdesc *jd)
head.lh_blkno, pass);
lops_after_scan(jd, error, pass);
if (error)
- goto fail_gunlock_tr;
+ goto fail_gunlock_thaw;
}
error = clean_journal(jd, &head);
if (error)
- goto fail_gunlock_tr;
+ goto fail_gunlock_thaw;
- gfs2_glock_dq_uninit(&t_gh);
+ gfs2_glock_dq_uninit(&thaw_gh);
t = DIV_ROUND_UP(jiffies - t, HZ);
fs_info(sdp, "jid=%u: Journal replayed in %lus\n",
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);
- gfs2_lm_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\n", jd->jd_jid);
- return 0;
+ goto done;
-fail_gunlock_tr:
- gfs2_glock_dq_uninit(&t_gh);
+fail_gunlock_thaw:
+ gfs2_glock_dq_uninit(&thaw_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);
}
fs_info(sdp, "jid=%u: %s\n", jd->jd_jid, (error) ? "Failed" : "Done");
-
fail:
- gfs2_lm_recovery_done(sdp, jd->jd_jid, LM_RD_GAVEUP);
- return error;
+ jd->jd_recover_error = error;
+ gfs2_recovery_done(sdp, jd->jd_jid, LM_RD_GAVEUP);
+done:
+ clear_bit(JDF_RECOVERY, &jd->jd_flags);
+ smp_mb__after_atomic();
+ wake_up_bit(&jd->jd_flags, JDF_RECOVERY);
}
-/**
- * gfs2_check_journals - Recover any dirty journals
- * @sdp: the filesystem
- *
- */
+static int gfs2_recovery_wait(void *word)
+{
+ schedule();
+ return 0;
+}
-void gfs2_check_journals(struct gfs2_sbd *sdp)
+int gfs2_recover_journal(struct gfs2_jdesc *jd, bool wait)
{
- struct gfs2_jdesc *jd;
+ int rv;
- for (;;) {
- jd = gfs2_jdesc_find_dirty(sdp);
- if (!jd)
- break;
+ if (test_and_set_bit(JDF_RECOVERY, &jd->jd_flags))
+ return -EBUSY;
- if (jd != sdp->sd_jdesc)
- gfs2_recover_journal(jd);
- }
+ /* we have JDF_RECOVERY, queue should always succeed */
+ rv = queue_work(gfs_recovery_wq, &jd->jd_work);
+ BUG_ON(!rv);
+
+ if (wait)
+ wait_on_bit(&jd->jd_flags, JDF_RECOVERY, gfs2_recovery_wait,
+ TASK_UNINTERRUPTIBLE);
+
+ return wait ? jd->jd_recover_error : 0;
}
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2025-11-10 05:13:25 +0000