[PATCH] btrfs: fix __ucmpdi2 compile bug on 32 bit builds

From: Heiko Carstens
Date: Fri Mar 27 2009 - 08:43:20 EST


From: Heiko Carstens <heiko.carstens@xxxxxxxxxx>

We get this on 32 builds:

fs/built-in.o: In function `extent_fiemap':
(.text+0x1019f2): undefined reference to `__ucmpdi2'

Happens because of a switch statement with a 64 bit argument.
Convert this to an if statement to fix this.

Signed-off-by: Heiko Carstens <heiko.carstens@xxxxxxxxxx>
---
fs/btrfs/extent_io.c | 16 +++++-----------
1 file changed, 5 insertions(+), 11 deletions(-)

Index: linux-2.6/fs/btrfs/extent_io.c
===================================================================
--- linux-2.6.orig/fs/btrfs/extent_io.c
+++ linux-2.6/fs/btrfs/extent_io.c
@@ -2884,25 +2884,19 @@ int extent_fiemap(struct inode *inode, s
disko = 0;
flags = 0;

- switch (em->block_start) {
- case EXTENT_MAP_LAST_BYTE:
+ if (em->block_start == EXTENT_MAP_LAST_BYTE) {
end = 1;
flags |= FIEMAP_EXTENT_LAST;
- break;
- case EXTENT_MAP_HOLE:
+ } else if (em->block_start == EXTENT_MAP_HOLE) {
flags |= FIEMAP_EXTENT_UNWRITTEN;
- break;
- case EXTENT_MAP_INLINE:
+ } else if (em->block_start == EXTENT_MAP_INLINE) {
flags |= (FIEMAP_EXTENT_DATA_INLINE |
FIEMAP_EXTENT_NOT_ALIGNED);
- break;
- case EXTENT_MAP_DELALLOC:
+ } else if (em->block_start == EXTENT_MAP_DELALLOC) {
flags |= (FIEMAP_EXTENT_DELALLOC |
FIEMAP_EXTENT_UNKNOWN);
- break;
- default:
+ } else {
disko = em->block_start;
- break;
}
if (test_bit(EXTENT_FLAG_COMPRESSED, &em->flags))
flags |= FIEMAP_EXTENT_ENCODED;
--
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