[PATCH] ext3 lockup fix to lock-break-rml-2.4.18-1.patch

From: Joe Korty (jak@rudolph.ccur.com)
Date: Mon Jul 22 2002 - 19:05:11 EST


Hi Robert,
The following patch fixes an apparent mismerge of Andrew Morton's low
latency work into the lock breaking patch. Without this fix,
journal_commit_transaction() will loop forever, without making
forward progress, if need_resched was set on entry.

Base to which the patch was derived:

    linux.2.4.18.tar.bz2
    + sched-O1-2.4.18-pre8-K3.patch
    + preempt-kernel-rml-2.4.18-rc1-ingo-K3-1.patch
    + lock-break-rml-2.4.18-1.patch

Regards,
Joe

--- fs/jbd/commit.c.orig Mon Jul 22 19:51:43 2002
+++ fs/jbd/commit.c Mon Jul 22 19:52:00 2002
@@ -278,6 +278,7 @@
                         debug_lock_break(551);
                         spin_unlock(&journal_datalist_lock);
                         unlock_journal(journal);
+ unconditional_schedule();
                         lock_journal(journal);
                         spin_lock(&journal_datalist_lock);
                         continue;
-
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