Revision 3ac805d2afd3fa4a07cb5bcf352fd7fa83f28935 authored by Ingo Molnar on 03 July 2009, 10:51:19 UTC, committed by Ingo Molnar on 03 July 2009, 11:26:43 UTC
cmpxchg8b is a huge instruction in terms of register footprint,
we almost never want to inline it, not even within the same
code module.
GCC 4.3 still messes up for two functions, under-judging the
true cost of this instruction - so annotate two key functions
to reduce the bloat:
arch/x86/lib/atomic64_32.o:
text data bss dec hex filename
1763 0 0 1763 6e3 atomic64_32.o.before
435 0 0 435 1b3 atomic64_32.o.after
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Eric Dumazet <eric.dumazet@gmail.com>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: David Howells <dhowells@redhat.com>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Arnd Bergmann <arnd@arndb.de>
LKML-Reference: <alpine.LFD.2.01.0907021653030.3210@localhost.localdomain>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
1 parent 824975e
| File | Mode | Size |
|---|---|---|
| Kconfig | -rw-r--r-- | 2.7 KB |
| Makefile | -rw-r--r-- | 875 bytes |
| apm_power.c | -rw-r--r-- | 10.1 KB |
| bq27x00_battery.c | -rw-r--r-- | 8.1 KB |
| da9030_battery.c | -rw-r--r-- | 15.9 KB |
| ds2760_battery.c | -rw-r--r-- | 13.2 KB |
| max17040_battery.c | -rw-r--r-- | 7.1 KB |
| olpc_battery.c | -rw-r--r-- | 11.1 KB |
| pcf50633-charger.c | -rw-r--r-- | 10.4 KB |
| pda_power.c | -rw-r--r-- | 10.2 KB |
| pmu_battery.c | -rw-r--r-- | 5.2 KB |
| power_supply.h | -rw-r--r-- | 1.2 KB |
| power_supply_core.c | -rw-r--r-- | 4.3 KB |
| power_supply_leds.c | -rw-r--r-- | 4.0 KB |
| power_supply_sysfs.c | -rw-r--r-- | 7.2 KB |
| tosa_battery.c | -rw-r--r-- | 11.5 KB |
| wm8350_power.c | -rw-r--r-- | 15.2 KB |
| wm97xx_battery.c | -rw-r--r-- | 6.3 KB |
Computing file changes ...
