Stephen Hemminger <shemminger@osdl.org> wrote:
>
> Recent (post 2.5.67) versions of the kernel break the creation
> of the initial ram disk.
OK, here be the fix.
I'm a bit peeved that this wasn't discovered until it hit Linus's tree.
Weren't these patches in -mjb as well?
In the interests of SMP scalability the ext2 free blocks and free inodes
counters are "approximate". But there is a piece of code in the Orlov
allocator which fails due to boundary conditions on really small
filesystems.
Fix that up via a final allocation pass which simply uses first-fit for
allocation of a directory inode.
fs/ext2/ialloc.c | 9 +++++++++
1 files changed, 9 insertions(+)
diff -puN fs/ext2/ialloc.c~orlov-approx-counter-fix fs/ext2/ialloc.c
--- 25/fs/ext2/ialloc.c~orlov-approx-counter-fix 2003-04-17 12:12:33.000000000 -0700
+++ 25-akpm/fs/ext2/ialloc.c 2003-04-17 12:14:09.000000000 -0700
@@ -410,6 +410,15 @@ fallback:
goto found;
}
+ if (avefreei) {
+ /*
+ * The free-inodes counter is approximate, and for really small
+ * filesystems the above test can fail to find any blockgroups
+ */
+ avefreei = 0;
+ goto fallback;
+ }
+
return -1;
found:
_
-
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This archive was generated by hypermail 2b29 : Wed Apr 23 2003 - 22:00:22 EST