X-Git-Url: https://err.no/cgi-bin/gitweb.cgi?a=blobdiff_plain;f=fs%2Fjffs2%2Fbuild.c;h=722a6b682951b8bcdecac8107171c2d06f5d60be;hb=98c1fc934c097d84dc30c639e9bdb0b992ef53e2;hp=02826967ab58918ac6fa6ec7723d5e81485c357e;hpb=075395d228641646159dae3dd170fa3fc6ff477a;p=linux-2.6

diff --git a/fs/jffs2/build.c b/fs/jffs2/build.c
index 02826967ab..722a6b6829 100644
--- a/fs/jffs2/build.c
+++ b/fs/jffs2/build.c
@@ -1,14 +1,12 @@
 /*
  * JFFS2 -- Journalling Flash File System, Version 2.
  *
- * Copyright (C) 2001-2003 Red Hat, Inc.
+ * Copyright © 2001-2007 Red Hat, Inc.
  *
  * Created by David Woodhouse <dwmw2@infradead.org>
  *
  * For licensing information, see the file 'LICENCE' in this directory.
  *
- * $Id: build.c,v 1.85 2005/11/07 11:14:38 gleixner Exp $
- *
  */
 
 #include <linux/kernel.h>
@@ -287,6 +285,14 @@ static void jffs2_calc_trigger_levels(struct jffs2_sb_info *c)
 	   than actually making progress? */
 	c->resv_blocks_gcbad = 0;//c->resv_blocks_deletion + 2;
 
+	/* What number of 'very dirty' eraseblocks do we allow before we
+	   trigger the GC thread even if we don't _need_ the space. When we
+	   can't mark nodes obsolete on the medium, the old dirty nodes cause
+	   performance problems because we have to inspect and discard them. */
+	c->vdirty_blocks_gctrigger = c->resv_blocks_gctrigger;
+	if (jffs2_can_mark_obsolete(c))
+		c->vdirty_blocks_gctrigger *= 10;
+
 	/* If there's less than this amount of dirty space, don't bother
 	   trying to GC to make more space. It'll be a fruitless task */
 	c->nospc_dirty_size = c->sector_size + (c->flash_size / 100);
@@ -305,6 +311,8 @@ static void jffs2_calc_trigger_levels(struct jffs2_sb_info *c)
 		  c->resv_blocks_gcbad, c->resv_blocks_gcbad*c->sector_size/1024);
 	dbg_fsbuild("Amount of dirty space required to GC: %d bytes\n",
 		  c->nospc_dirty_size);
+	dbg_fsbuild("Very dirty blocks before GC triggered: %d\n",
+		  c->vdirty_blocks_gctrigger);
 }
 
 int jffs2_do_mount_fs(struct jffs2_sb_info *c)
@@ -348,23 +356,27 @@ int jffs2_do_mount_fs(struct jffs2_sb_info *c)
 
 	ret = jffs2_sum_init(c);
 	if (ret)
-		return ret;
+		goto out_free;
 
 	if (jffs2_build_filesystem(c)) {
 		dbg_fsbuild("build_fs failed\n");
 		jffs2_free_ino_caches(c);
 		jffs2_free_raw_node_refs(c);
-#ifndef __ECOS
-		if (jffs2_blocks_use_vmalloc(c))
-			vfree(c->blocks);
-		else
-#endif
-			kfree(c->blocks);
-
-		return -EIO;
+		ret = -EIO;
+		goto out_free;
 	}
 
 	jffs2_calc_trigger_levels(c);
 
 	return 0;
+
+ out_free:
+#ifndef __ECOS
+	if (jffs2_blocks_use_vmalloc(c))
+		vfree(c->blocks);
+	else
+#endif
+		kfree(c->blocks);
+
+	return ret;
 }