Btrfs: fix __ucmpdi2 compile bug on 32 bit builds

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@de.ibm.com>
Signed-off-by: Chris Mason <chris.mason@oracle.com>

1 files changed, 5 insertions, 11 deletions

diff --git a/fs/btrfs/extent_io.c b/fs/btrfs/extent_io.c
index 08085af089e2..eb2bee8b7fbf 100644
--- a/fs/btrfs/extent_io.c
+++ b/fs/btrfs/extent_io.c
@@ -2884,25 +2884,19 @@ int extent_fiemap(struct inode *inode, struct fiemap_extent_info *fieinfo,
                 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;