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Andi Kleen c8399943bd x86, generic: mark complex bitops.h inlines as __always_inline ... Impact: reduce kernel image size Hugh Dickins noticed that older gcc versions when the kernel is built for code size didn't inline some of the bitops. Mark all complex x86 bitops that have more than a single asm statement or two as always inline to avoid this problem. Probably should be done for other architectures too. Ingo then found a better fix that only requires a single line change, but it unfortunately only works on gcc 4.3. On older gccs the original patch still makes a ~0.3% defconfig difference with CONFIG_OPTIMIZE_INLINING=y. With gcc 4.1 and a defconfig like build: 6116998 1138540 883788 8139326 7c323e vmlinux-oi-with-patch 6137043 1138540 883788 8159371 7c808b vmlinux-optimize-inlining ~20k / 0.3% difference. Signed-off-by: Andi Kleen <ak@linux.intel.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Ingo Molnar <mingo@elte.hu>		16 years ago
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__ffs.h	x86, generic: mark complex bitops.h inlines as __always_inline	16 years ago
__fls.h	x86, generic: mark complex bitops.h inlines as __always_inline	16 years ago
atomic.h	define first set of BIT* macros	18 years ago
ext2-atomic.h	…
ext2-non-atomic.h	ext4: Add ext4_find_next_bit()	17 years ago
ffs.h	…
ffz.h	…
find.h	x86, generic: optimize find_next_(zero_)bit for small constant-size bitmaps	17 years ago
fls.h	x86, generic: mark complex bitops.h inlines as __always_inline	16 years ago
fls64.h	x86, generic: mark complex bitops.h inlines as __always_inline	16 years ago
hweight.h	…
le.h	ext4: Add ext4_find_next_bit()	17 years ago
lock.h	bitops: introduce lock ops	18 years ago
minix-le.h	…
minix.h	…
non-atomic.h	define first set of BIT* macros	18 years ago
sched.h	sched: simplify sched_find_first_bit()	18 years ago