[PATCH] ext3: "nobh" writeback support for filesystems blocksize < pagesize

There is no valid reason why we can't support "nobh" option for filesystems
with blocksize != PAGESIZE.

This patch lets them use "nobh" option for writeback mode for blocksize <
pagesize.

Signed-off-by: Badari Pulavarty <pbadari@us.ibm.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

diff --git a/fs/ext3/super.c b/fs/ext3/super.c
index 86e4431..f8a5266 100644 (file)
--- a/fs/ext3/super.c
+++ b/fs/ext3/super.c
@@ -1678,12 +1678,6 @@ static int ext3_fill_super (struct super_block *sb, void *data, int silent)
        }
 
        if (test_opt(sb, NOBH)) {
-               if (sb->s_blocksize_bits != PAGE_CACHE_SHIFT) {
-                       printk(KERN_WARNING "EXT3-fs: Ignoring nobh option "
-                               "since filesystem blocksize doesn't match "
-                               "pagesize\n");
-                       clear_opt(sbi->s_mount_opt, NOBH);
-               }
                if (!(test_opt(sb, DATA_FLAGS) == EXT3_MOUNT_WRITEBACK_DATA)) {
                        printk(KERN_WARNING "EXT3-fs: Ignoring nobh option - "
                                "its supported only with writeback mode\n");