diff options
| author | Andrew Morton <akpm@osdl.org> | 2004-05-21 20:38:29 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@ppc970.osdl.org> | 2004-05-21 20:38:29 -0700 |
| commit | 581ae915a3e17cbee9e393d4cf1e877b08b8a7a1 (patch) | |
| tree | 05efbc3831b1f02c355272f68d1e017d9bc71685 /mm | |
| parent | 2b590e8513e1ec259211630c21ef68f3ba2ded73 (diff) | |
| download | history-581ae915a3e17cbee9e393d4cf1e877b08b8a7a1.tar.gz | |
[PATCH] Sanitise handling of unneeded syscall stubs
From: David Mosberger <davidm@napali.hpl.hp.com>
Below is a patch that tries to sanitize the dropping of unneeded system-call
stubs in generic code. In some instances, it would be possible to move the
optional system-call stubs into a library routine which would avoid the need
for #ifdefs, but in many cases, doing so would require making several
functions global (and possibly exporting additional data-structures in
header-files). Furthermore, it would inhibit (automatic) inlining in the
cases in the cases where the stubs are needed. For these reasons, the patch
keeps the #ifdef-approach.
This has been tested on ia64 and there were no objections from the
arch-maintainers (and one positive response). The patch should be safe but
arch-maintainers may want to take a second look to see if some __ARCH_WANT_foo
macros should be removed for their architecture (I'm quite sure that's the
case, but I wanted to play it safe and only preserved the status-quo in that
regard).
Diffstat (limited to 'mm')
| -rw-r--r-- | mm/fadvise.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/mm/fadvise.c b/mm/fadvise.c index e6d1c32d85feb1..f479387a548615 100644 --- a/mm/fadvise.c +++ b/mm/fadvise.c @@ -16,6 +16,8 @@ #include <linux/pagevec.h> #include <linux/fadvise.h> +#include <asm/unistd.h> + /* * POSIX_FADV_WILLNEED could set PG_Referenced, and POSIX_FADV_NOREUSE could * deactivate the pages and clear PG_Referenced. @@ -98,8 +100,11 @@ out: return ret; } +#ifdef __ARCH_WANT_SYS_FADVISE64 + asmlinkage long sys_fadvise64(int fd, loff_t offset, size_t len, int advice) { return sys_fadvise64_64(fd, offset, len, advice); } +#endif |