3 Commits

Author	SHA1	Message	Date
David Sterba	9888c3402c	btrfs: replace GPL boilerplate by SPDX -- headers ... Remove GPL boilerplate text (long, short, one-line) and keep the rest, ie. personal, company or original source copyright statements. Add the SPDX header. Unify the include protection macros to match the file names. Signed-off-by: David Sterba <dsterba@suse.com>	2018-04-12 16:29:46 +02:00
David Sterba	f8c269d722	btrfs: cleanup 64bit/32bit divs, compile time constants ... 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>	2015-03-03 17:23:57 +01:00
Miao Xie	3fed40cc97	Btrfs: cleanup duplicated division functions ... 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>	2012-12-11 13:31:30 -05:00