On Tue, Oct 09, 2007 at 01:40:12PM -0400, Theodore Tso wrote:
> On Tue, Oct 09, 2007 at 10:03:06AM -0700, Mingming Cao wrote:
> > I guess our testing did not catch this up because we have CONFIG_PROC_FS
> > enabled all the time. mballoc needs procfs for exporting some stats info
> > and tunable paramenters to optimize/customize multiple allocation.
> >
> > We could select CONFIG_PROC_FS at kconfig when ext4dev is enabled.
>
> We definitely should be able to compile without CONFIG_PROC_FS; it's a
> major flaw in the mballoc-core.patch that it doesn't work without it.
I will fold the following into mballoc-core.patch. It's sufficient to
allow us to compile w/o CONFIG_PROC_FS defined.
- Ted
diff --git a/fs/ext4/mballoc.c b/fs/ext4/mballoc.c
index 4409c0c..2305af4 100644
--- a/fs/ext4/mballoc.c
+++ b/fs/ext4/mballoc.c
@@ -2854,9 +2854,11 @@ int __init init_ext4_proc(void)
if (ext4_pspace_cachep == NULL)
return -ENOMEM;
+#ifdef CONFIG_PROC_FS
proc_root_ext4 = proc_mkdir(EXT4_ROOT, proc_root_fs);
if (proc_root_ext4 == NULL)
printk(KERN_ERR "EXT4-fs: Unable to create %s\n", EXT4_ROOT);
+#endif
return 0;
}
@@ -2865,7 +2867,9 @@ void exit_ext4_proc(void)
{
/* XXX: synchronize_rcu(); */
kmem_cache_destroy(ext4_pspace_cachep);
+#ifdef CONFIG_PROC_FS
remove_proc_entry(EXT4_ROOT, proc_root_fs);
+#endif
}
-
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