linux-toradex.git/fs/btrfs/math.h, branch v4.4.26 Linux kernel for Apalis and Colibri modules btrfs: cleanup 64bit/32bit divs, compile time constants 2015-03-03T16:23:57+00:00 David Sterba dsterba@suse.cz 2015-01-16T16:21:12+00:00 f8c269d7223f6b63cc5936eb191bc3b170d24342 Switch to div_u64 if the divisor is a numeric constant or sum of sizeof()s. We can remove a few instances of do_div that has the hidden semtantics of changing the 1st argument. Small power-of-two divisors are converted to bitshifts, large values are kept intact for clarity. Signed-off-by: David Sterba <dsterba@suse.cz> 
Switch to div_u64 if the divisor is a numeric constant or sum of
sizeof()s. We can remove a few instances of do_div that has the hidden
semtantics of changing the 1st argument.

Small power-of-two divisors are converted to bitshifts, large values are
kept intact for clarity.

Signed-off-by: David Sterba <dsterba@suse.cz>
Btrfs: cleanup duplicated division functions 2012-12-11T18:31:30+00:00 Miao Xie miaox@cn.fujitsu.com 2012-09-13T10:51:36+00:00 3fed40cc97f32bebfd34a55364de9b44dcbede59 div_factor{_fine} has been implemented for two times, cleanup it. And I move them into a independent file named math.h because they are common math functions. Signed-off-by: Miao Xie <miaox@cn.fujitsu.com> Signed-off-by: Chris Mason <chris.mason@fusionio.com> 
div_factor{_fine} has been implemented for two times, cleanup it.
And I move them into a independent file named math.h because they are
common math functions.

Signed-off-by: Miao Xie <miaox@cn.fujitsu.com>
Signed-off-by: Chris Mason <chris.mason@fusionio.com>