linux: mm: set readahead 1792 kb, 32 kb

Signed-off-by: Lens-F <tnoah12@gmail.com>
int_sqrt.c: Correction square root algo with naming

Signed-off-by: Lens-F <tnoah12@gmail.com>
int_sqrt: Improve 3x faster integer sqrt.

Result on 10,000,000 call.
Old:
sqrt(12345689) = 3513
real	0m0.768s
user	0m0.760s
sys	0m0.004s

New:
sqrt(12345689) = 3513
real	0m0.222s
user	0m0.224s
sys	0m0.000s

Signed-off-by: Lens-F <tnoah12@gmail.com>
readahead: optimize divide/multiply by power of 2 using L/R shift

Signed-off-by: Lens-F <tnoah12@gmail.com>

Conflicts:
	mm/readahead.c

Signed-off-by: Lens-F <tnoah12@gmail.com>
readahead: optimize divide/multiply by power of 2 using L/R shift - Fix

Signed-off-by: Lens-F <tnoah12@gmail.com>
intelliactive: Fix Compile Warnings

Signed-off-by: Chet Kener <Cl3Kener@gmail.com>
Signed-off-by: Lens-F <tnoah12@gmail.com>
Makefile: remove -fipa-pta flag [read more]

This option can cause excessive memory and compile-time usage on large compilation units. It is not enabled by default at any optimization level.

Signed-off-by: Lens-F <tnoah12@gmail.com>