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Use an uma-zone for allocation bio requests.

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This commit is contained in:
Poul-Henning Kamp 2003-05-02 12:36:12 +00:00
parent a2211ce1e0
commit 5ffb2c8bfd
1 changed files with 10 additions and 13 deletions
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23
sys/geom/geom_io.c
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@ -47,11 +47,13 @@
#include <geom/geom_int.h>
#include <sys/devicestat.h>
#include <vm/uma.h>
static struct g_bioq g_bio_run_down;
static struct g_bioq g_bio_run_up;
static struct g_bioq g_bio_idle;
static u_int pace;
static uma_zone_t biozone;
#include <machine/atomic.h>
@ -114,12 +116,7 @@ g_new_bio(void)
{
struct bio *bp;
g_bioq_lock(&g_bio_idle);
bp = g_bioq_first(&g_bio_idle);
g_bioq_unlock(&g_bio_idle);
if (bp == NULL)
bp = g_malloc(sizeof *bp, M_NOWAIT | M_ZERO);
/* g_trace(G_T_BIO, "g_new_bio() = %p", bp); */
bp = uma_zalloc(biozone, M_NOWAIT | M_ZERO);
return (bp);
}
@ -127,9 +124,7 @@ void
g_destroy_bio(struct bio *bp)
{
/* g_trace(G_T_BIO, "g_destroy_bio(%p)", bp); */
bzero(bp, sizeof *bp);
g_bioq_enqueue_tail(bp, &g_bio_idle);
uma_zfree(biozone, bp);
}
struct bio *
@ -137,7 +132,7 @@ g_clone_bio(struct bio *bp)
{
struct bio *bp2;
bp2 = g_new_bio();
bp2 = uma_zalloc(biozone, M_NOWAIT | M_ZERO);
if (bp2 != NULL) {
bp2->bio_parent = bp;
bp2->bio_cmd = bp->bio_cmd;
@ -147,7 +142,6 @@ g_clone_bio(struct bio *bp)
bp2->bio_attribute = bp->bio_attribute;
bp->bio_children++;
}
/* g_trace(G_T_BIO, "g_clone_bio(%p) = %p", bp, bp2); */
return(bp2);
}
@ -157,7 +151,10 @@ g_io_init()
g_bioq_init(&g_bio_run_down);
g_bioq_init(&g_bio_run_up);
g_bioq_init(&g_bio_idle);
biozone = uma_zcreate("g_bio", sizeof (struct bio),
NULL, NULL,
NULL, NULL,
0, 0);
}
int