unsigned int line,
struct ocfs2_lock_res *lockres)
{
- struct ocfs2_meta_lvb *lvb =
- (struct ocfs2_meta_lvb *)ocfs2_dlm_lvb(&lockres->l_lksb);
+ struct ocfs2_meta_lvb *lvb = ocfs2_dlm_lvb(&lockres->l_lksb);
mlog(level, "LVB information for %s (called from %s:%u):\n",
lockres->l_name, function, line);
.flags = 0,
};
+static struct ocfs2_lock_res_ops ocfs2_nfs_sync_lops = {
+ .flags = 0,
+};
+
static struct ocfs2_lock_res_ops ocfs2_dentry_lops = {
.get_osb = ocfs2_get_dentry_osb,
.post_unlock = ocfs2_dentry_post_unlock,
struct ocfs2_lock_res *lockres);
static inline void ocfs2_recover_from_dlm_error(struct ocfs2_lock_res *lockres,
int convert);
-#define ocfs2_log_dlm_error(_func, _err, _lockres) do { \
- mlog(ML_ERROR, "DLM error %d while calling %s on resource %s\n", \
- _err, _func, _lockres->l_name); \
+#define ocfs2_log_dlm_error(_func, _err, _lockres) do { \
+ if ((_lockres)->l_type != OCFS2_LOCK_TYPE_DENTRY) \
+ mlog(ML_ERROR, "DLM error %d while calling %s on resource %s\n", \
+ _err, _func, _lockres->l_name); \
+ else \
+ mlog(ML_ERROR, "DLM error %d while calling %s on resource %.*s%08x\n", \
+ _err, _func, OCFS2_DENTRY_LOCK_INO_START - 1, (_lockres)->l_name, \
+ (unsigned int)ocfs2_get_dentry_lock_ino(_lockres)); \
} while (0)
static int ocfs2_downconvert_thread(void *arg);
static void ocfs2_downconvert_on_unlock(struct ocfs2_super *osb,
&ocfs2_rename_lops, osb);
}
+static void ocfs2_nfs_sync_lock_res_init(struct ocfs2_lock_res *res,
+ struct ocfs2_super *osb)
+{
+ /* nfs_sync lockres doesn't come from a slab so we call init
+ * once on it manually. */
+ ocfs2_lock_res_init_once(res);
+ ocfs2_build_lock_name(OCFS2_LOCK_TYPE_NFS_SYNC, 0, 0, res->l_name);
+ ocfs2_lock_res_init_common(osb, res, OCFS2_LOCK_TYPE_NFS_SYNC,
+ &ocfs2_nfs_sync_lops, osb);
+}
+
void ocfs2_file_lock_res_init(struct ocfs2_lock_res *lockres,
struct ocfs2_file_private *fp)
{
goto out;
}
- mlog(0, "lock %s, successfull return from ocfs2_dlm_lock\n",
+ mlog(0, "lock %s, successful return from ocfs2_dlm_lock\n",
lockres->l_name);
/* At this point we've gone inside the dlm and need to
mlog_entry_void();
- lvb = (struct ocfs2_meta_lvb *)ocfs2_dlm_lvb(&lockres->l_lksb);
+ lvb = ocfs2_dlm_lvb(&lockres->l_lksb);
/*
* Invalidate the LVB of a deleted inode - this way other
mlog_meta_lvb(0, lockres);
- lvb = (struct ocfs2_meta_lvb *)ocfs2_dlm_lvb(&lockres->l_lksb);
+ lvb = ocfs2_dlm_lvb(&lockres->l_lksb);
/* We're safe here without the lockres lock... */
spin_lock(&oi->ip_lock);
static inline int ocfs2_meta_lvb_is_trustable(struct inode *inode,
struct ocfs2_lock_res *lockres)
{
- struct ocfs2_meta_lvb *lvb =
- (struct ocfs2_meta_lvb *)ocfs2_dlm_lvb(&lockres->l_lksb);
+ struct ocfs2_meta_lvb *lvb = ocfs2_dlm_lvb(&lockres->l_lksb);
if (lvb->lvb_version == OCFS2_LVB_VERSION
&& be32_to_cpu(lvb->lvb_igeneration) == inode->i_generation)
ocfs2_cluster_unlock(osb, lockres, DLM_LOCK_EX);
}
+int ocfs2_nfs_sync_lock(struct ocfs2_super *osb, int ex)
+{
+ int status;
+ struct ocfs2_lock_res *lockres = &osb->osb_nfs_sync_lockres;
+
+ if (ocfs2_is_hard_readonly(osb))
+ return -EROFS;
+
+ if (ocfs2_mount_local(osb))
+ return 0;
+
+ status = ocfs2_cluster_lock(osb, lockres, ex ? LKM_EXMODE : LKM_PRMODE,
+ 0, 0);
+ if (status < 0)
+ mlog(ML_ERROR, "lock on nfs sync lock failed %d\n", status);
+
+ return status;
+}
+
+void ocfs2_nfs_sync_unlock(struct ocfs2_super *osb, int ex)
+{
+ struct ocfs2_lock_res *lockres = &osb->osb_nfs_sync_lockres;
+
+ if (!ocfs2_mount_local(osb))
+ ocfs2_cluster_unlock(osb, lockres,
+ ex ? LKM_EXMODE : LKM_PRMODE);
+}
+
int ocfs2_dentry_lock(struct dentry *dentry, int ex)
{
int ret;
local:
ocfs2_super_lock_res_init(&osb->osb_super_lockres, osb);
ocfs2_rename_lock_res_init(&osb->osb_rename_lockres, osb);
+ ocfs2_nfs_sync_lock_res_init(&osb->osb_nfs_sync_lockres, osb);
osb->cconn = conn;
ocfs2_lock_res_free(&osb->osb_super_lockres);
ocfs2_lock_res_free(&osb->osb_rename_lockres);
+ ocfs2_lock_res_free(&osb->osb_nfs_sync_lockres);
ocfs2_cluster_disconnect(osb->cconn, hangup_pending);
osb->cconn = NULL;
case OCFS2_UNLOCK_CANCEL_CONVERT:
mlog(0, "Cancel convert success for %s\n", lockres->l_name);
lockres->l_action = OCFS2_AST_INVALID;
+ /* Downconvert thread may have requeued this lock, we
+ * need to wake it. */
+ if (lockres->l_flags & OCFS2_LOCK_BLOCKED)
+ ocfs2_wake_downconvert_thread(ocfs2_get_lockres_osb(lockres));
break;
case OCFS2_UNLOCK_DROP_LOCK:
lockres->l_level = DLM_LOCK_IV;
ocfs2_dlm_dump_lksb(&lockres->l_lksb);
BUG();
}
- mlog(0, "lock %s, successfull return from ocfs2_dlm_unlock\n",
+ mlog(0, "lock %s, successful return from ocfs2_dlm_unlock\n",
lockres->l_name);
ocfs2_wait_on_busy_lock(lockres);
{
ocfs2_simple_drop_lockres(osb, &osb->osb_super_lockres);
ocfs2_simple_drop_lockres(osb, &osb->osb_rename_lockres);
+ ocfs2_simple_drop_lockres(osb, &osb->osb_nfs_sync_lockres);
}
int ocfs2_drop_inode_locks(struct inode *inode)
mlog_entry_void();
- lvb = (struct ocfs2_qinfo_lvb *)ocfs2_dlm_lvb(&lockres->l_lksb);
+ lvb = ocfs2_dlm_lvb(&lockres->l_lksb);
lvb->lvb_version = OCFS2_QINFO_LVB_VERSION;
lvb->lvb_bgrace = cpu_to_be32(info->dqi_bgrace);
lvb->lvb_igrace = cpu_to_be32(info->dqi_igrace);
oinfo->dqi_gi.dqi_type);
struct ocfs2_lock_res *lockres = &oinfo->dqi_gqlock;
struct ocfs2_qinfo_lvb *lvb = ocfs2_dlm_lvb(&lockres->l_lksb);
- struct buffer_head *bh;
+ struct buffer_head *bh = NULL;
struct ocfs2_global_disk_dqinfo *gdinfo;
int status = 0;
oinfo->dqi_gi.dqi_free_entry =
be32_to_cpu(lvb->lvb_free_entry);
} else {
- bh = ocfs2_read_quota_block(oinfo->dqi_gqinode, 0, &status);
- if (!bh) {
+ status = ocfs2_read_quota_block(oinfo->dqi_gqinode, 0, &bh);
+ if (status) {
mlog_errno(status);
goto bail;
}
git://ftp.safe.ca / safe / jmp / linux-2.6 / blobdiff