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 |
|---|---|---|
| raid6test | ||
| .gitignore | -rw-r--r-- | 51 bytes |
| Kconfig | -rw-r--r-- | 9.7 KB |
| Makefile | -rw-r--r-- | 3.9 KB |
| bitmap.c | -rw-r--r-- | 44.1 KB |
| bitmap.h | -rw-r--r-- | 10.3 KB |
| dm-bio-record.h | -rw-r--r-- | 1.6 KB |
| dm-crypt.c | -rw-r--r-- | 31.5 KB |
| dm-delay.c | -rw-r--r-- | 8.4 KB |
| dm-exception-store.c | -rw-r--r-- | 6.6 KB |
| dm-exception-store.h | -rw-r--r-- | 4.5 KB |
| dm-io.c | -rw-r--r-- | 11.1 KB |
| dm-ioctl.c | -rw-r--r-- | 32.4 KB |
| dm-kcopyd.c | -rw-r--r-- | 13.9 KB |
| dm-linear.c | -rw-r--r-- | 3.5 KB |
| dm-log-userspace-base.c | -rw-r--r-- | 16.1 KB |
| dm-log-userspace-transfer.c | -rw-r--r-- | 6.8 KB |
| dm-log-userspace-transfer.h | -rw-r--r-- | 452 bytes |
| dm-log.c | -rw-r--r-- | 18.9 KB |
| dm-mpath.c | -rw-r--r-- | 36.7 KB |
| dm-mpath.h | -rw-r--r-- | 415 bytes |
| dm-path-selector.c | -rw-r--r-- | 2.4 KB |
| dm-path-selector.h | -rw-r--r-- | 2.5 KB |
| dm-queue-length.c | -rw-r--r-- | 5.4 KB |
| dm-raid1.c | -rw-r--r-- | 31.4 KB |
| dm-region-hash.c | -rw-r--r-- | 17.6 KB |
| dm-round-robin.c | -rw-r--r-- | 4.6 KB |
| dm-service-time.c | -rw-r--r-- | 8.2 KB |
| dm-snap-persistent.c | -rw-r--r-- | 17.1 KB |
| dm-snap-transient.c | -rw-r--r-- | 3.6 KB |
| dm-snap.c | -rw-r--r-- | 33.1 KB |
| dm-stripe.c | -rw-r--r-- | 7.8 KB |
| dm-sysfs.c | -rw-r--r-- | 2.2 KB |
| dm-table.c | -rw-r--r-- | 27.2 KB |
| dm-target.c | -rw-r--r-- | 2.5 KB |
| dm-uevent.c | -rw-r--r-- | 5.4 KB |
| dm-uevent.h | -rw-r--r-- | 1.6 KB |
| dm-zero.c | -rw-r--r-- | 1.5 KB |
| dm.c | -rw-r--r-- | 59.3 KB |
| dm.h | -rw-r--r-- | 3.8 KB |
| faulty.c | -rw-r--r-- | 8.7 KB |
| linear.c | -rw-r--r-- | 9.2 KB |
| linear.h | -rw-r--r-- | 301 bytes |
| md.c | -rw-r--r-- | 176.6 KB |
| md.h | -rw-r--r-- | 13.9 KB |
| mktables.c | -rw-r--r-- | 2.9 KB |
| multipath.c | -rw-r--r-- | 14.6 KB |
| multipath.h | -rw-r--r-- | 692 bytes |
| raid0.c | -rw-r--r-- | 15.1 KB |
| raid0.h | -rw-r--r-- | 455 bytes |
| raid1.c | -rw-r--r-- | 60.3 KB |
| raid1.h | -rw-r--r-- | 3.2 KB |
| raid10.c | -rw-r--r-- | 61.4 KB |
| raid10.h | -rw-r--r-- | 2.8 KB |
| raid5.c | -rw-r--r-- | 149.4 KB |
| raid5.h | -rw-r--r-- | 18.6 KB |
| raid6algos.c | -rw-r--r-- | 4.3 KB |
| raid6altivec.uc | -rw-r--r-- | 3.3 KB |
| raid6int.uc | -rw-r--r-- | 2.7 KB |
| raid6mmx.c | -rw-r--r-- | 3.8 KB |
| raid6recov.c | -rw-r--r-- | 3.5 KB |
| raid6sse1.c | -rw-r--r-- | 4.9 KB |
| raid6sse2.c | -rw-r--r-- | 8.3 KB |
| raid6x86.h | -rw-r--r-- | 1.6 KB |
| unroll.pl | -rw-r--r-- | 492 bytes |
Computing file changes ...
