hollalinux
/
linux-sg2042
mirror of https://github.com/sophgo/linux-riscv.git
1
0
Fork 0
Code Issues Packages Projects Releases Wiki Activity

[PATCH] lib/rwsem.c: un-inline rwsem_down_failed_common() 

Un-inlining rwsem_down_failed_common() (two callsites) reduced lib/rwsem.o
on my Athlon, gcc 4.1.2 from 5935 to 5480 Bytes (455 Bytes saved).

I thus guess that reduced icache footprint (and better function caching) is
worth more than any function call overhead.

Signed-off-by: Andreas Mohr <andi@lisas.de>
Cc: David Howells <dhowells@redhat.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
This commit is contained in:
Andreas Mohr 2006-09-29 02:01:20 -07:00 committed by Linus Torvalds
parent 2752e40114
commit fdf8cb0909
1 changed files with 1 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
lib/rwsem.c
View File

@ -146,7 +146,7 @@ __rwsem_do_wake(struct rw_semaphore *sem, int downgrading)
/* /*
* wait for a lock to be granted * wait for a lock to be granted
*/ */
static inline struct rw_semaphore * static struct rw_semaphore *
rwsem_down_failed_common(struct rw_semaphore *sem, rwsem_down_failed_common(struct rw_semaphore *sem,
struct rwsem_waiter *waiter, signed long adjustment) struct rwsem_waiter *waiter, signed long adjustment)
{ {