Btrfs: fix __ucmpdi2 compile bug on 32 bit builds (93dbfad7) · Commits · 戴 / test

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>

fs/btrfs/extent_io.c

+5 −11

Original line number	Diff line number	Diff line
		@@ -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;

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