Merge master.kernel.org:/pub/scm/linux/kernel/git/tglx/mtd-2.6

Some manual fixups for clashing kfree() cleanups etc.

37 files changed, 4547 insertions, 2138 deletions

diff --git a/fs/Kconfig b/fs/Kconfig
index 7cf36ca157ff..7d6ae369ce44 100644
--- a/fs/Kconfig
+++ b/fs/Kconfig
@@ -1051,6 +1051,19 @@ config JFFS2_FS_WRITEBUFFER
 	    - NOR flash with transparent ECC
 	    - DataFlash
 
+config JFFS2_SUMMARY
+	bool "JFFS2 summary support (EXPERIMENTAL)"
+	depends on JFFS2_FS && EXPERIMENTAL
+	default n
+	help
+	  This feature makes it possible to use summary information
+	  for faster filesystem mount.
+
+	  The summary information can be inserted into a filesystem image
+	  by the utility 'sumtool'.
+
+	  If unsure, say 'N'.
+
 config JFFS2_COMPRESSION_OPTIONS
 	bool "Advanced compression options for JFFS2"
 	depends on JFFS2_FS
@@ -1072,10 +1085,10 @@ config JFFS2_ZLIB
 	default y
         help
           Zlib is designed to be a free, general-purpose, legally unencumbered,
-          lossless data-compression library for use on virtually any computer 
+          lossless data-compression library for use on virtually any computer
           hardware and operating system. See <http://www.gzip.org/zlib/> for
           further information.
-          
+
           Say 'Y' if unsure.
 
 config JFFS2_RTIME
@@ -1097,7 +1110,7 @@ choice
         default JFFS2_CMODE_PRIORITY
         depends on JFFS2_FS
         help
-          You can set here the default compression mode of JFFS2 from 
+          You can set here the default compression mode of JFFS2 from
           the available compression modes. Don't touch if unsure.
 
 config JFFS2_CMODE_NONE
@@ -1108,13 +1121,13 @@ config JFFS2_CMODE_NONE
 config JFFS2_CMODE_PRIORITY
         bool "priority"
         help
-          Tries the compressors in a predefinied order and chooses the first 
+          Tries the compressors in a predefinied order and chooses the first
           successful one.
 
 config JFFS2_CMODE_SIZE
         bool "size (EXPERIMENTAL)"
         help
-          Tries all compressors and chooses the one which has the smallest 
+          Tries all compressors and chooses the one which has the smallest
           result.
 
 endchoice
diff --git a/fs/jffs2/Makefile b/fs/jffs2/Makefile
index f1afe681ecd6..77dc5561a04e 100644
--- a/fs/jffs2/Makefile
+++ b/fs/jffs2/Makefile
@@ -1,7 +1,7 @@
 #
 # Makefile for the Linux Journalling Flash File System v2 (JFFS2)
 #
-# $Id: Makefile.common,v 1.9 2005/02/09 09:23:53 pavlov Exp $
+# $Id: Makefile.common,v 1.11 2005/09/07 08:34:53 havasi Exp $
 #
 
 obj-$(CONFIG_JFFS2_FS) += jffs2.o
@@ -9,9 +9,10 @@ obj-$(CONFIG_JFFS2_FS) += jffs2.o
 jffs2-y	:= compr.o dir.o file.o ioctl.o nodelist.o malloc.o
 jffs2-y	+= read.o nodemgmt.o readinode.o write.o scan.o gc.o
 jffs2-y	+= symlink.o build.o erase.o background.o fs.o writev.o
-jffs2-y	+= super.o
+jffs2-y	+= super.o debug.o
 
 jffs2-$(CONFIG_JFFS2_FS_WRITEBUFFER)	+= wbuf.o
 jffs2-$(CONFIG_JFFS2_RUBIN)	+= compr_rubin.o
 jffs2-$(CONFIG_JFFS2_RTIME)	+= compr_rtime.o
 jffs2-$(CONFIG_JFFS2_ZLIB)	+= compr_zlib.o
+jffs2-$(CONFIG_JFFS2_SUMMARY)   += summary.o
diff --git a/fs/jffs2/TODO b/fs/jffs2/TODO
index 2bff82fd221f..d0e23b26fa50 100644
--- a/fs/jffs2/TODO
+++ b/fs/jffs2/TODO
@@ -1,5 +1,11 @@
-$Id: TODO,v 1.10 2002/09/09 16:31:21 dwmw2 Exp $
+$Id: TODO,v 1.18 2005/09/22 11:24:56 dedekind Exp $
 
+ - support asynchronous operation -- add a per-fs 'reserved_space' count,
+   let each outstanding write reserve the _maximum_ amount of physical
+   space it could take. Let GC flush the outstanding writes because the
+   reservations will necessarily be pessimistic. With this we could even
+   do shared writable mmap, if we can have a fs hook for do_wp_page() to
+   make the reservation.
  - disable compression in commit_write()?
  - fine-tune the allocation / GC thresholds
  - chattr support - turning on/off and tuning compression per-inode
@@ -11,26 +17,15 @@ $Id: TODO,v 1.10 2002/09/09 16:31:21 dwmw2 Exp $
  - test, test, test
 
  - NAND flash support:
-	- flush_wbuf using GC to fill it, don't just pad.
-	- Deal with write errors. Data don't get lost - we just have to write 
-	  the affected node(s) out again somewhere else.
-	- make fsync flush only if actually required
-	- make sys_sync() work.
-	- reboot notifier
-	- timed flush of old wbuf
-	- fix magical second arg of jffs2_flush_wbuf(). Split into two or more functions instead.
-
+	- almost done :)
+	- use bad block check instead of the hardwired byte check
 
  - Optimisations:
-   - Stop GC from decompressing and immediately recompressing nodes which could
-     just be copied intact. (We now keep track of REF_PRISTINE flag. Easy now.)
-   - Furthermore, in the case where it could be copied intact we don't even need
-     to call iget() for it -- if we use (raw_node_raw->flash_offset & 2) as a flag
-     to show a node can be copied intact and it's _not_ in icache, we could just do
-     it, fix up the next_in_ino list and move on. We would need a way to find out
-     _whether_ it's in icache though -- if it's in icache we also need to do the 
-     fragment lists, etc. P'raps a flag or pointer in the jffs2_inode_cache could
-     help. (We have half of this now.)
+   - Split writes so they go to two separate blocks rather than just c->nextblock.
+	By writing _new_ nodes to one block, and garbage-collected REF_PRISTINE
+	nodes to a different one, we can separate clean nodes from those which
+	are likely to become dirty, and end up with blocks which are each far
+	closer to 100% or 0% clean, hence speeding up later GC progress dramatically.
    - Stop keeping name in-core with struct jffs2_full_dirent. If we keep the hash in 
      the full dirent, we only need to go to the flash in lookup() when we think we've
      got a match, and in readdir(). 
@@ -38,3 +33,8 @@ $Id: TODO,v 1.10 2002/09/09 16:31:21 dwmw2 Exp $
    - Remove totlen from jffs2_raw_node_ref? Need to have totlen passed into
 	jffs2_mark_node_obsolete(). Can all callers work it out?
    - Remove size from jffs2_raw_node_frag. 
+
+dedekind:
+1. __jffs2_flush_wbuf() has a strange 'pad' parameter. Eliminate.
+2. get_sb()->build_fs()->scan() path... Why get_sb() removes scan()'s crap in
+   case of failure? scan() does not clean everything. Fix.
diff --git a/fs/jffs2/background.c b/fs/jffs2/background.c
index 8210ac16a368..7b77a9541125 100644
--- a/fs/jffs2/background.c
+++ b/fs/jffs2/background.c
@@ -51,7 +51,7 @@ int jffs2_start_garbage_collect_thread(struct jffs2_sb_info *c)
 		D1(printk(KERN_DEBUG "JFFS2: Garbage collect thread is pid %d\n", pid));
 		wait_for_completion(&c->gc_thread_start);
 	}
- 
+
 	return ret;
 }
 
@@ -101,7 +101,7 @@ static int jffs2_garbage_collect_thread(void *_c)
 
 		cond_resched();
 
-		/* Put_super will send a SIGKILL and then wait on the sem. 
+		/* Put_super will send a SIGKILL and then wait on the sem.
 		 */
 		while (signal_pending(current)) {
 			siginfo_t info;
diff --git a/fs/jffs2/build.c b/fs/jffs2/build.c
index 97dc39796e2c..fff108bb118b 100644
--- a/fs/jffs2/build.c
+++ b/fs/jffs2/build.c
@@ -7,7 +7,7 @@
  *
  * For licensing information, see the file 'LICENCE' in this directory.
  *
- * $Id: build.c,v 1.71 2005/07/12 16:37:08 dedekind Exp $
+ * $Id: build.c,v 1.85 2005/11/07 11:14:38 gleixner Exp $
  *
  */
 
@@ -18,7 +18,8 @@
 #include <linux/mtd/mtd.h>
 #include "nodelist.h"
 
-static void jffs2_build_remove_unlinked_inode(struct jffs2_sb_info *, struct jffs2_inode_cache *, struct jffs2_full_dirent **);
+static void jffs2_build_remove_unlinked_inode(struct jffs2_sb_info *,
+		struct jffs2_inode_cache *, struct jffs2_full_dirent **);
 
 static inline struct jffs2_inode_cache *
 first_inode_chain(int *i, struct jffs2_sb_info *c)
@@ -46,11 +47,12 @@ next_inode(int *i, struct jffs2_inode_cache *ic, struct jffs2_sb_info *c)
 	     ic = next_inode(&i, ic, (c)))
 
 
-static inline void jffs2_build_inode_pass1(struct jffs2_sb_info *c, struct jffs2_inode_cache *ic)
+static inline void jffs2_build_inode_pass1(struct jffs2_sb_info *c,
+					struct jffs2_inode_cache *ic)
 {
 	struct jffs2_full_dirent *fd;
 
-	D1(printk(KERN_DEBUG "jffs2_build_inode building directory inode #%u\n", ic->ino));
+	dbg_fsbuild("building directory inode #%u\n", ic->ino);
 
 	/* For each child, increase nlink */
 	for(fd = ic->scan_dents; fd; fd = fd->next) {
@@ -58,26 +60,23 @@ static inline void jffs2_build_inode_pass1(struct jffs2_sb_info *c, struct jffs2
 		if (!fd->ino)
 			continue;
 
-		/* XXX: Can get high latency here with huge directories */
+		/* we can get high latency here with huge directories */
 
 		child_ic = jffs2_get_ino_cache(c, fd->ino);
 		if (!child_ic) {
-			printk(KERN_NOTICE "Eep. Child \"%s\" (ino #%u) of dir ino #%u doesn't exist!\n",
+			dbg_fsbuild("child \"%s\" (ino #%u) of dir ino #%u doesn't exist!\n",
 				  fd->name, fd->ino, ic->ino);
 			jffs2_mark_node_obsolete(c, fd->raw);
 			continue;
 		}
 
 		if (child_ic->nlink++ && fd->type == DT_DIR) {
-			printk(KERN_NOTICE "Child dir \"%s\" (ino #%u) of dir ino #%u appears to be a hard link\n", fd->name, fd->ino, ic->ino);
-			if (fd->ino == 1 && ic->ino == 1) {
-				printk(KERN_NOTICE "This is mostly harmless, and probably caused by creating a JFFS2 image\n");
-				printk(KERN_NOTICE "using a buggy version of mkfs.jffs2. Use at least v1.17.\n");
-			}
-			/* What do we do about it? */
+			JFFS2_ERROR("child dir \"%s\" (ino #%u) of dir ino #%u appears to be a hard link\n",
+				fd->name, fd->ino, ic->ino);
+			/* TODO: What do we do about it? */
 		}
-		D1(printk(KERN_DEBUG "Increased nlink for child \"%s\" (ino #%u)\n", fd->name, fd->ino));
-		/* Can't free them. We might need them in pass 2 */
+		dbg_fsbuild("increased nlink for child \"%s\" (ino #%u)\n", fd->name, fd->ino);
+		/* Can't free scan_dents so far. We might need them in pass 2 */
 	}
 }
 
@@ -94,6 +93,8 @@ static int jffs2_build_filesystem(struct jffs2_sb_info *c)
 	struct jffs2_full_dirent *fd;
 	struct jffs2_full_dirent *dead_fds = NULL;
 
+	dbg_fsbuild("build FS data structures\n");
+
 	/* First, scan the medium and build all the inode caches with
 	   lists of physical nodes */
 
@@ -103,60 +104,54 @@ static int jffs2_build_filesystem(struct jffs2_sb_info *c)
 	if (ret)
 		goto exit;
 
-	D1(printk(KERN_DEBUG "Scanned flash completely\n"));
-	D2(jffs2_dump_block_lists(c));
+	dbg_fsbuild("scanned flash completely\n");
+	jffs2_dbg_dump_block_lists_nolock(c);
 
+	dbg_fsbuild("pass 1 starting\n");
 	c->flags |= JFFS2_SB_FLAG_BUILDING;
 	/* Now scan the directory tree, increasing nlink according to every dirent found. */
 	for_each_inode(i, c, ic) {
-		D1(printk(KERN_DEBUG "Pass 1: ino #%u\n", ic->ino));
-
-		D1(BUG_ON(ic->ino > c->highest_ino));
-
 		if (ic->scan_dents) {
 			jffs2_build_inode_pass1(c, ic);
 			cond_resched();
 		}
 	}
 
-	D1(printk(KERN_DEBUG "Pass 1 complete\n"));
+	dbg_fsbuild("pass 1 complete\n");
 
 	/* Next, scan for inodes with nlink == 0 and remove them. If
 	   they were directories, then decrement the nlink of their
 	   children too, and repeat the scan. As that's going to be
 	   a fairly uncommon occurrence, it's not so evil to do it this
 	   way. Recursion bad. */
-	D1(printk(KERN_DEBUG "Pass 2 starting\n"));
+	dbg_fsbuild("pass 2 starting\n");
 
 	for_each_inode(i, c, ic) {
-		D1(printk(KERN_DEBUG "Pass 2: ino #%u, nlink %d, ic %p, nodes %p\n", ic->ino, ic->nlink, ic, ic->nodes));
 		if (ic->nlink)
 			continue;
-			
+
 		jffs2_build_remove_unlinked_inode(c, ic, &dead_fds);
 		cond_resched();
-	} 
+	}
 
-	D1(printk(KERN_DEBUG "Pass 2a starting\n"));
+	dbg_fsbuild("pass 2a starting\n");
 
 	while (dead_fds) {
 		fd = dead_fds;
 		dead_fds = fd->next;
 
 		ic = jffs2_get_ino_cache(c, fd->ino);
-		D1(printk(KERN_DEBUG "Removing dead_fd ino #%u (\"%s\"), ic at %p\n", fd->ino, fd->name, ic));
 
 		if (ic)
 			jffs2_build_remove_unlinked_inode(c, ic, &dead_fds);
 		jffs2_free_full_dirent(fd);
 	}
 
-	D1(printk(KERN_DEBUG "Pass 2 complete\n"));
-	
+	dbg_fsbuild("pass 2a complete\n");
+	dbg_fsbuild("freeing temporary data structures\n");
+
 	/* Finally, we can scan again and free the dirent structs */
 	for_each_inode(i, c, ic) {
-		D1(printk(KERN_DEBUG "Pass 3: ino #%u, ic %p, nodes %p\n", ic->ino, ic, ic->nodes));
-
 		while(ic->scan_dents) {
 			fd = ic->scan_dents;
 			ic->scan_dents = fd->next;
@@ -166,9 +161,8 @@ static int jffs2_build_filesystem(struct jffs2_sb_info *c)
 		cond_resched();
 	}
 	c->flags &= ~JFFS2_SB_FLAG_BUILDING;
-	
-	D1(printk(KERN_DEBUG "Pass 3 complete\n"));
-	D2(jffs2_dump_block_lists(c));
+
+	dbg_fsbuild("FS build complete\n");
 
 	/* Rotate the lists by some number to ensure wear levelling */
 	jffs2_rotate_lists(c);
@@ -189,24 +183,26 @@ exit:
 	return ret;
 }
 
-static void jffs2_build_remove_unlinked_inode(struct jffs2_sb_info *c, struct jffs2_inode_cache *ic, struct jffs2_full_dirent **dead_fds)
+static void jffs2_build_remove_unlinked_inode(struct jffs2_sb_info *c,
+					struct jffs2_inode_cache *ic,
+					struct jffs2_full_dirent **dead_fds)
 {
 	struct jffs2_raw_node_ref *raw;
 	struct jffs2_full_dirent *fd;
 
-	D1(printk(KERN_DEBUG "JFFS2: Removing ino #%u with nlink == zero.\n", ic->ino));
-	
+	dbg_fsbuild("removing ino #%u with nlink == zero.\n", ic->ino);
+
 	raw = ic->nodes;
 	while (raw != (void *)ic) {
 		struct jffs2_raw_node_ref *next = raw->next_in_ino;
-		D1(printk(KERN_DEBUG "obsoleting node at 0x%08x\n", ref_offset(raw)));
+		dbg_fsbuild("obsoleting node at 0x%08x\n", ref_offset(raw));
 		jffs2_mark_node_obsolete(c, raw);
 		raw = next;
 	}
 
 	if (ic->scan_dents) {
 		int whinged = 0;
-		D1(printk(KERN_DEBUG "Inode #%u was a directory which may have children...\n", ic->ino));
+		dbg_fsbuild("inode #%u was a directory which may have children...\n", ic->ino);
 
 		while(ic->scan_dents) {
 			struct jffs2_inode_cache *child_ic;
@@ -216,45 +212,43 @@ static void jffs2_build_remove_unlinked_inode(struct jffs2_sb_info *c, struct jf
 
 			if (!fd->ino) {
 				/* It's a deletion dirent. Ignore it */
-				D1(printk(KERN_DEBUG "Child \"%s\" is a deletion dirent, skipping...\n", fd->name));
+				dbg_fsbuild("child \"%s\" is a deletion dirent, skipping...\n", fd->name);
 				jffs2_free_full_dirent(fd);
 				continue;
 			}
-			if (!whinged) {
+			if (!whinged)
 				whinged = 1;
-				printk(KERN_NOTICE "Inode #%u was a directory with children - removing those too...\n", ic->ino);
-			}
 
-			D1(printk(KERN_DEBUG "Removing child \"%s\", ino #%u\n",
-				  fd->name, fd->ino));
-			
+			dbg_fsbuild("removing child \"%s\", ino #%u\n", fd->name, fd->ino);
+
 			child_ic = jffs2_get_ino_cache(c, fd->ino);
 			if (!child_ic) {
-				printk(KERN_NOTICE "Cannot remove child \"%s\", ino #%u, because it doesn't exist\n", fd->name, fd->ino);
+				dbg_fsbuild("cannot remove child \"%s\", ino #%u, because it doesn't exist\n",
+						fd->name, fd->ino);
 				jffs2_free_full_dirent(fd);
 				continue;
 			}
 
-			/* Reduce nlink of the child. If it's now zero, stick it on the 
+			/* Reduce nlink of the child. If it's now zero, stick it on the
 			   dead_fds list to be cleaned up later. Else just free the fd */
 
 			child_ic->nlink--;
-			
+
 			if (!child_ic->nlink) {
-				D1(printk(KERN_DEBUG "Inode #%u (\"%s\") has now got zero nlink. Adding to dead_fds list.\n",
-					  fd->ino, fd->name));
+				dbg_fsbuild("inode #%u (\"%s\") has now got zero nlink, adding to dead_fds list.\n",
+					  fd->ino, fd->name);
 				fd->next = *dead_fds;
 				*dead_fds = fd;
 			} else {
-				D1(printk(KERN_DEBUG "Inode #%u (\"%s\") has now got nlink %d. Ignoring.\n",
-					  fd->ino, fd->name, child_ic->nlink));
+				dbg_fsbuild("inode #%u (\"%s\") has now got nlink %d. Ignoring.\n",
+					  fd->ino, fd->name, child_ic->nlink);
 				jffs2_free_full_dirent(fd);
 			}
 		}
 	}
 
 	/*
-	   We don't delete the inocache from the hash list and free it yet. 
+	   We don't delete the inocache from the hash list and free it yet.
 	   The erase code will do that, when all the nodes are completely gone.
 	*/
 }
@@ -268,7 +262,7 @@ static void jffs2_calc_trigger_levels(struct jffs2_sb_info *c)
 	   because there's not enough free space... */
 	c->resv_blocks_deletion = 2;
 
-	/* Be conservative about how much space we need before we allow writes. 
+	/* Be conservative about how much space we need before we allow writes.
 	   On top of that which is required for deletia, require an extra 2%
 	   of the medium to be available, for overhead caused by nodes being
 	   split across blocks, etc. */
@@ -283,7 +277,7 @@ static void jffs2_calc_trigger_levels(struct jffs2_sb_info *c)
 
 	c->resv_blocks_gctrigger = c->resv_blocks_write + 1;
 
-	/* When do we allow garbage collection to merge nodes to make 
+	/* When do we allow garbage collection to merge nodes to make
 	   long-term progress at the expense of short-term space exhaustion? */
 	c->resv_blocks_gcmerge = c->resv_blocks_deletion + 1;
 
@@ -295,45 +289,45 @@ static void jffs2_calc_trigger_levels(struct jffs2_sb_info *c)
 	   trying to GC to make more space. It'll be a fruitless task */
 	c->nospc_dirty_size = c->sector_size + (c->flash_size / 100);
 
-	D1(printk(KERN_DEBUG "JFFS2 trigger levels (size %d KiB, block size %d KiB, %d blocks)\n",
-		  c->flash_size / 1024, c->sector_size / 1024, c->nr_blocks));
-	D1(printk(KERN_DEBUG "Blocks required to allow deletion:    %d (%d KiB)\n",
-		  c->resv_blocks_deletion, c->resv_blocks_deletion*c->sector_size/1024));
-	D1(printk(KERN_DEBUG "Blocks required to allow writes:      %d (%d KiB)\n",
-		  c->resv_blocks_write, c->resv_blocks_write*c->sector_size/1024));
-	D1(printk(KERN_DEBUG "Blocks required to quiesce GC thread: %d (%d KiB)\n",
-		  c->resv_blocks_gctrigger, c->resv_blocks_gctrigger*c->sector_size/1024));
-	D1(printk(KERN_DEBUG "Blocks required to allow GC merges:   %d (%d KiB)\n",
-		  c->resv_blocks_gcmerge, c->resv_blocks_gcmerge*c->sector_size/1024));
-	D1(printk(KERN_DEBUG "Blocks required to GC bad blocks:     %d (%d KiB)\n",
-		  c->resv_blocks_gcbad, c->resv_blocks_gcbad*c->sector_size/1024));
-	D1(printk(KERN_DEBUG "Amount of dirty space required to GC: %d bytes\n",
-		  c->nospc_dirty_size));
-} 
+	dbg_fsbuild("JFFS2 trigger levels (size %d KiB, block size %d KiB, %d blocks)\n",
+		  c->flash_size / 1024, c->sector_size / 1024, c->nr_blocks);
+	dbg_fsbuild("Blocks required to allow deletion:    %d (%d KiB)\n",
+		  c->resv_blocks_deletion, c->resv_blocks_deletion*c->sector_size/1024);
+	dbg_fsbuild("Blocks required to allow writes:      %d (%d KiB)\n",
+		  c->resv_blocks_write, c->resv_blocks_write*c->sector_size/1024);
+	dbg_fsbuild("Blocks required to quiesce GC thread: %d (%d KiB)\n",
+		  c->resv_blocks_gctrigger, c->resv_blocks_gctrigger*c->sector_size/1024);
+	dbg_fsbuild("Blocks required to allow GC merges:   %d (%d KiB)\n",
+		  c->resv_blocks_gcmerge, c->resv_blocks_gcmerge*c->sector_size/1024);
+	dbg_fsbuild("Blocks required to GC bad blocks:     %d (%d KiB)\n",
+		  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);
+}
 
 int jffs2_do_mount_fs(struct jffs2_sb_info *c)
 {
+	int ret;
 	int i;
+	int size;
 
 	c->free_size = c->flash_size;
 	c->nr_blocks = c->flash_size / c->sector_size;
- 	if (c->mtd->flags & MTD_NO_VIRTBLOCKS)
-		c->blocks = vmalloc(sizeof(struct jffs2_eraseblock) * c->nr_blocks);
+	size = sizeof(struct jffs2_eraseblock) * c->nr_blocks;
+#ifndef __ECOS
+	if (jffs2_blocks_use_vmalloc(c))
+		c->blocks = vmalloc(size);
 	else
-		c->blocks = kmalloc(sizeof(struct jffs2_eraseblock) * c->nr_blocks, GFP_KERNEL);
+#endif
+		c->blocks = kmalloc(size, GFP_KERNEL);
 	if (!c->blocks)
 		return -ENOMEM;
+
+	memset(c->blocks, 0, size);
 	for (i=0; i<c->nr_blocks; i++) {
 		INIT_LIST_HEAD(&c->blocks[i].list);
 		c->blocks[i].offset = i * c->sector_size;
 		c->blocks[i].free_size = c->sector_size;
-		c->blocks[i].dirty_size = 0;
-		c->blocks[i].wasted_size = 0;
-		c->blocks[i].unchecked_size = 0;
-		c->blocks[i].used_size = 0;
-		c->blocks[i].first_node = NULL;
-		c->blocks[i].last_node = NULL;
-		c->blocks[i].bad_count = 0;
 	}
 
 	INIT_LIST_HEAD(&c->clean_list);
@@ -348,16 +342,23 @@ int jffs2_do_mount_fs(struct jffs2_sb_info *c)
 	INIT_LIST_HEAD(&c->bad_list);
 	INIT_LIST_HEAD(&c->bad_used_list);
 	c->highest_ino = 1;
+	c->summary = NULL;
+
+	ret = jffs2_sum_init(c);
+	if (ret)
+		return ret;
 
 	if (jffs2_build_filesystem(c)) {
-		D1(printk(KERN_DEBUG "build_fs failed\n"));
+		dbg_fsbuild("build_fs failed\n");
 		jffs2_free_ino_caches(c);
 		jffs2_free_raw_node_refs(c);
-		if (c->mtd->flags & MTD_NO_VIRTBLOCKS) {
+#ifndef __ECOS
+		if (jffs2_blocks_use_vmalloc(c))
 			vfree(c->blocks);
-		} else {
+		else
+#endif
 			kfree(c->blocks);
-		}
+
 		return -EIO;
 	}
 
diff --git a/fs/jffs2/compr.c b/fs/jffs2/compr.c
index af922a9618ac..e7944e665b9f 100644
--- a/fs/jffs2/compr.c
+++ b/fs/jffs2/compr.c
@@ -9,7 +9,7 @@
  *
  * For licensing information, see the file 'LICENCE' in this directory.
  *
- * $Id: compr.c,v 1.42 2004/08/07 21:56:08 dwmw2 Exp $
+ * $Id: compr.c,v 1.46 2005/11/07 11:14:38 gleixner Exp $
  *
  */
 
@@ -36,16 +36,16 @@ static uint32_t none_stat_compr_blocks=0,none_stat_decompr_blocks=0,none_stat_co
  *	data.
  *
  * Returns: Lower byte to be stored with data indicating compression type used.
- * Zero is used to show that the data could not be compressed - the 
+ * Zero is used to show that the data could not be compressed - the
  * compressed version was actually larger than the original.
  * Upper byte will be used later. (soon)
  *
  * If the cdata buffer isn't large enough to hold all the uncompressed data,
- * jffs2_compress should compress as much as will fit, and should set 
+ * jffs2_compress should compress as much as will fit, and should set
  * *datalen accordingly to show the amount of data which were compressed.
  */
 uint16_t jffs2_compress(struct jffs2_sb_info *c, struct jffs2_inode_info *f,
-			     unsigned char *data_in, unsigned char **cpage_out, 
+			     unsigned char *data_in, unsigned char **cpage_out,
 			     uint32_t *datalen, uint32_t *cdatalen)
 {
 	int ret = JFFS2_COMPR_NONE;
@@ -164,7 +164,7 @@ uint16_t jffs2_compress(struct jffs2_sb_info *c, struct jffs2_inode_info *f,
 }
 
 int jffs2_decompress(struct jffs2_sb_info *c, struct jffs2_inode_info *f,
-		     uint16_t comprtype, unsigned char *cdata_in, 
+		     uint16_t comprtype, unsigned char *cdata_in,
 		     unsigned char *data_out, uint32_t cdatalen, uint32_t datalen)
 {
         struct jffs2_compressor *this;
@@ -298,7 +298,7 @@ char *jffs2_stats(void)
 
         act_buf += sprintf(act_buf,"JFFS2 compressor statistics:\n");
         act_buf += sprintf(act_buf,"%10s   ","none");
-        act_buf += sprintf(act_buf,"compr: %d blocks (%d)  decompr: %d blocks\n", none_stat_compr_blocks, 
+        act_buf += sprintf(act_buf,"compr: %d blocks (%d)  decompr: %d blocks\n", none_stat_compr_blocks,
                            none_stat_compr_size, none_stat_decompr_blocks);
         spin_lock(&jffs2_compressor_list_lock);
         list_for_each_entry(this, &jffs2_compressor_list, list) {
@@ -307,8 +307,8 @@ char *jffs2_stats(void)
                         act_buf += sprintf(act_buf,"- ");
                 else
                         act_buf += sprintf(act_buf,"+ ");
-                act_buf += sprintf(act_buf,"compr: %d blocks (%d/%d)  decompr: %d blocks ", this->stat_compr_blocks, 
-                                   this->stat_compr_new_size, this->stat_compr_orig_size, 
+                act_buf += sprintf(act_buf,"compr: %d blocks (%d/%d)  decompr: %d blocks ", this->stat_compr_blocks,
+                                   this->stat_compr_new_size, this->stat_compr_orig_size,
                                    this->stat_decompr_blocks);
                 act_buf += sprintf(act_buf,"\n");
         }
@@ -317,7 +317,7 @@ char *jffs2_stats(void)
         return buf;
 }
 
-char *jffs2_get_compression_mode_name(void) 
+char *jffs2_get_compression_mode_name(void)
 {
         switch (jffs2_compression_mode) {
         case JFFS2_COMPR_MODE_NONE:
@@ -330,7 +330,7 @@ char *jffs2_get_compression_mode_name(void)
         return "unkown";
 }
 
-int jffs2_set_compression_mode_name(const char *name) 
+int jffs2_set_compression_mode_name(const char *name)
 {
         if (!strcmp("none",name)) {
                 jffs2_compression_mode = JFFS2_COMPR_MODE_NONE;
@@ -355,7 +355,7 @@ static int jffs2_compressor_Xable(const char *name, int disabled)
                 if (!strcmp(this->name, name)) {
                         this->disabled = disabled;
                         spin_unlock(&jffs2_compressor_list_lock);
-                        return 0;                        
+                        return 0;
                 }
         }
         spin_unlock(&jffs2_compressor_list_lock);
@@ -385,7 +385,7 @@ int jffs2_set_compressor_priority(const char *name, int priority)
                 }
         }
         spin_unlock(&jffs2_compressor_list_lock);
-        printk(KERN_WARNING "JFFS2: compressor %s not found.\n",name);        
+        printk(KERN_WARNING "JFFS2: compressor %s not found.\n",name);
         return 1;
 reinsert:
         /* list is sorted in the order of priority, so if
@@ -412,7 +412,7 @@ void jffs2_free_comprbuf(unsigned char *comprbuf, unsigned char *orig)
                 kfree(comprbuf);
 }
 
-int jffs2_compressors_init(void) 
+int jffs2_compressors_init(void)
 {
 /* Registering compressors */
 #ifdef CONFIG_JFFS2_ZLIB
@@ -425,12 +425,6 @@ int jffs2_compressors_init(void)
         jffs2_rubinmips_init();
         jffs2_dynrubin_init();
 #endif
-#ifdef CONFIG_JFFS2_LZARI
-        jffs2_lzari_init();
-#endif
-#ifdef CONFIG_JFFS2_LZO
-        jffs2_lzo_init();
-#endif
 /* Setting default compression mode */
 #ifdef CONFIG_JFFS2_CMODE_NONE
         jffs2_compression_mode = JFFS2_COMPR_MODE_NONE;
@@ -446,15 +440,9 @@ int jffs2_compressors_init(void)
         return 0;
 }
 
-int jffs2_compressors_exit(void) 
+int jffs2_compressors_exit(void)
 {
 /* Unregistering compressors */
-#ifdef CONFIG_JFFS2_LZO
-        jffs2_lzo_exit();
-#endif
-#ifdef CONFIG_JFFS2_LZARI
-        jffs2_lzari_exit();
-#endif
 #ifdef CONFIG_JFFS2_RUBIN
         jffs2_dynrubin_exit();
         jffs2_rubinmips_exit();
diff --git a/fs/jffs2/compr.h b/fs/jffs2/compr.h
index 89ceeed201eb..a77e830d85c5 100644
--- a/fs/jffs2/compr.h
+++ b/fs/jffs2/compr.h
@@ -4,10 +4,10 @@
  * Copyright (C) 2004 Ferenc Havasi <havasi@inf.u-szeged.hu>,
  *                    University of Szeged, Hungary
  *
- * For licensing information, see the file 'LICENCE' in the 
+ * For licensing information, see the file 'LICENCE' in the
  * jffs2 directory.
  *
- * $Id: compr.h,v 1.6 2004/07/16 15:17:57 dwmw2 Exp $
+ * $Id: compr.h,v 1.9 2005/11/07 11:14:38 gleixner Exp $
  *
  */
 
@@ -103,13 +103,5 @@ void jffs2_rtime_exit(void);
 int jffs2_zlib_init(void);
 void jffs2_zlib_exit(void);
 #endif
-#ifdef CONFIG_JFFS2_LZARI
-int jffs2_lzari_init(void);
-void jffs2_lzari_exit(void);
-#endif
-#ifdef CONFIG_JFFS2_LZO
-int jffs2_lzo_init(void);
-void jffs2_lzo_exit(void);
-#endif
 
 #endif /* __JFFS2_COMPR_H__ */
diff --git a/fs/jffs2/compr_rtime.c b/fs/jffs2/compr_rtime.c
index 393129418666..2eb1b7428d16 100644
--- a/fs/jffs2/compr_rtime.c
+++ b/fs/jffs2/compr_rtime.c
@@ -24,8 +24,8 @@
 #include <linux/kernel.h>
 #include <linux/types.h>
 #include <linux/errno.h>
-#include <linux/string.h> 
-#include <linux/jffs2.h> 
+#include <linux/string.h>