Avoid some potential inode cache coherency problem caused by using the

byte-swapping options to e2fsck.  This was the cause of some hard to 
reproduce problems that had been reported in the past, and which the
resize_inode changes tickled in a much more repeatable fashion.

e2fsck/ChangeLog

@@ -1,3 +1,9 @@
+2004-12-23  Theodore Ts'o  <tytso@mit.edu>
+
+	* swapfs.c (swap_inodes): Since swap_inodes bypasses the inode
+		cache for speed reasons, we must flush it to avoid cache
+		coherency problems.
+
 2004-12-16  Theodore Ts'o  <tytso@mit.edu>
 
 	* super.c (check_super_block): If the resize_inode feature is not

e2fsck/swapfs.c

@@ -182,6 +182,7 @@ static void swap_inodes(e2fsck_t ctx)
 	ext2fs_free_mem(&buf);
 	ext2fs_free_mem(&block_buf);
 	e2fsck_use_inode_shortcuts(ctx, 0);
+	ext2fs_flush_icache(fs);
 }
 
 #if defined(__powerpc__) && defined(EXT2FS_ENABLE_SWAPFS)

lib/ext2fs/ChangeLog

@@ -1,5 +1,8 @@
 2004-12-23  Theodore Ts'o  <tytso@mit.edu>
 
+	* inode.c (ext2fs_flush_icache): When flushing the icache, clear
+		the last-read block information as well.
+
 	* ext2fs.h (BMAP_SET), bmap.c (ext2fs_bmap): Add support for new
 		flag, BMAP_SET, which allows the caller to set a
 		particular logical->physical block mapping.

lib/ext2fs/inode.c

@@ -63,6 +63,7 @@ errcode_t ext2fs_flush_icache(ext2_filsys fs)
 	for (i=0; i < fs->icache->cache_size; i++)
 		fs->icache->cache[i].ino = 0;
 
+	fs->icache->buffer_blk = 0;
 	return 0;
 }