[Ocfs2-devel] [PATCH]2.6 fixes in journal.c

[Rusty Lynch <rusty@linux.co.intel.com>]

On Mon, Mar 01, 2004 at 08:54:47AM -0800, Rusty Lynch wrote:
> On Thu, Feb 26, 2004 at 06:16:49PM -0800, Rusty Lynch wrote:
> > The following is a patch that fixes some small 2.6 issues with
> > journal.c
> > 
> > * journal_get_write_access now has an additional "credits" argument
> >   that appears to be safe to pass in as null.  (Other people are
> >   doing it and the code in the latest bk tree always test for null
> >   before attempting to incrementing it.)
> > * small typo in an ocfs_iget call
> > * remaining call to daemonize that is moved to the 2.6 safe
> >   ocfs_daemonize call
> > * WARNING!!! Here is the thing I am not sure about!
> >   The lock_journal/unlock_journal calls do not exist anymore.
> >   There is a journal_[un]lock_updates() function, but it is 
> >   unclear when to use that function.
> > 
> >   I just removed the [un]lock_journal calls around a line where
> >   we were tweaking the commit interval.

The following patch addes #if LINUX_VERSION_CODE wrappers around the
journal_get_write_access() call, and drops the journal locking calls for
both the 2.4 and 2.6 code when the commit interval is set durring journal
initialization.


Index: src/journal.c
===================================================================
--- src/journal.c	(revision 738)
+++ src/journal.c	(working copy)
@@ -656,7 +656,11 @@
 		break;
 
 	case OCFS_JOURNAL_ACCESS_WRITE:
+#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,0)
+		status = journal_get_write_access(handle->k_handle, bh, NULL);
+#else
 		status = journal_get_write_access(handle->k_handle, bh);
+#endif
 		break;
 
 	default:
@@ -899,7 +903,7 @@
 	OCFS_BH_PUT_DATA(bh);
 	fe = NULL;
 #if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,0)
-	inode = ocfs_iget (sb, &args);
+	inode = ocfs_iget (osb->sb, &args);
 #else
 	inode = ocfs_get_inode_from_offset(osb, args.offset, bh);
 #endif
@@ -935,9 +939,7 @@
 
 	LOG_TRACE_STR("Returned from journal_init_inode");
 	LOG_TRACE_ARGS("k_journal->j_maxlen = %u\n", k_journal->j_maxlen);
-	lock_journal(k_journal);
 	k_journal->j_commit_interval = OCFS_DEFAULT_COMMIT_INTERVAL;
-	unlock_journal(k_journal);
 
 	/* yay, pass the proper info back to our journal structure. */
 	osb->journal.osb = osb;
@@ -1376,12 +1378,14 @@
 	ocfs_super *osb = ((struct ocfs_recover_arg *) arg)->osb;
 	int node_num = ((struct ocfs_recover_arg *) arg)->node_num;
 	int status = 0;
+	char proc[16];
 
 	LOG_ENTRY_ARGS("(node_num=%d, osb->node_num = %d)\n", node_num,
 		       osb->node_num);
 
-	daemonize();
-	reparent_to_init();
+	sprintf (proc, "ocfs2rec-%d", osb->osb_id);
+	ocfs_daemonize (proc, strlen(proc));
+
 #ifdef HAVE_NPTL
 	spin_lock_irq (&current->sighand->siglock);
 	sigfillset(&current->blocked);
@@ -1531,7 +1535,7 @@
 	OCFS_BH_PUT_DATA(bh);
 	fe = NULL;
 #if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,0)
-	inode = ocfs_iget (sb, &args);
+	inode = ocfs_iget (osb->sb, &args);
 #else
 	inode = ocfs_get_inode_from_offset(osb, args.offset, bh);
 #endif