diff options
| author | alc <alc@FreeBSD.org> | 2004-11-08 00:43:46 +0000 |
|---|---|---|
| committer | alc <alc@FreeBSD.org> | 2004-11-08 00:43:46 +0000 |
| commit | 279c442e7b00039336f35f8337221afc75097719 (patch) | |
| tree | 9c22bf433a4b1e53785d707539f3ec1a29b480d8 /sys/arm | |
| parent | ddc1dfe834242dfb57955d438edf435598a4ebeb (diff) | |
| download | FreeBSD-src-279c442e7b00039336f35f8337221afc75097719.zip FreeBSD-src-279c442e7b00039336f35f8337221afc75097719.tar.gz | |
Introduce two new options, "CPU private" and "no wait", to sf_buf_alloc().
Change the spelling of the "catch" option to be consistent with the new
options. Implement the "no wait" option. An implementation of the "CPU
private" for i386 will be committed at a later date.
Diffstat (limited to 'sys/arm')
| -rw-r--r-- | sys/arm/arm/vm_machdep.c | 8 |
1 files changed, 5 insertions, 3 deletions
diff --git a/sys/arm/arm/vm_machdep.c b/sys/arm/arm/vm_machdep.c index 5c48b2a..2effe82 100644 --- a/sys/arm/arm/vm_machdep.c +++ b/sys/arm/arm/vm_machdep.c @@ -231,7 +231,7 @@ sf_buf_init(void *arg) * Get an sf_buf from the freelist. Will block if none are available. */ struct sf_buf * -sf_buf_alloc(struct vm_page *m, int pri) +sf_buf_alloc(struct vm_page *m, int flags) { struct sf_head *hash_list; struct sf_buf *sf; @@ -251,10 +251,12 @@ sf_buf_alloc(struct vm_page *m, int pri) } } while ((sf = TAILQ_FIRST(&sf_buf_freelist)) == NULL) { + if (flags & SFB_NOWAIT) + goto done; sf_buf_alloc_want++; mbstat.sf_allocwait++; - error = msleep(&sf_buf_freelist, &sf_buf_lock, PVM | pri, - "sfbufa", 0); + error = msleep(&sf_buf_freelist, &sf_buf_lock, + (flags & SFB_CATCH) ? PCATCH | PVM : PVM, "sfbufa", 0); sf_buf_alloc_want--; |
