provide generic_block_fiemap() only with BLOCK=y
This fixes the following compile error with CONFIG_BLOCK=n caused by commit 68c9d702 ("generic block based fiemap implementation"): CC fs/ioctl.o fs/ioctl.c: In function 'generic_block_fiemap': fs/ioctl.c:249: error: storage size of 'tmp' isn't known fs/ioctl.c:272: error: invalid application of 'sizeof' to incomplete type 'struct buffer_head' fs/ioctl.c:280: error: implicit declaration of function 'buffer_mapped' fs/ioctl.c:249: warning: unused variable 'tmp' make[2]: *** [fs/ioctl.o] Error 1 Signed-off-by: NAdrian Bunk <bunk@kernel.org> Acked-by: NJosef Bacik <jbacik@redhat.com> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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