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Make the conversion from the default pager to swap pager more robust

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in the face of low memory conditions.
This commit is contained in:
John Dyson 1996-05-24 05:14:44 +00:00
parent c51bd6784e
commit a9d4727439
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=15887
1 changed files with 7 additions and 5 deletions
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12
sys/vm/default_pager.c
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@ -28,7 +28,7 @@
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* $Id: default_pager.c,v 1.5 1995/12/14 09:54:46 phk Exp $
* $Id: default_pager.c,v 1.6 1996/01/19 03:59:36 dyson Exp $
*/
#include <sys/param.h>
@ -125,10 +125,12 @@ default_pager_putpages(object, m, c, sync, rtvals)
object->type = OBJT_SWAP;
if (swap_pager_swp_alloc(object, M_KERNEL) != 0) {
object->type = OBJT_DEFAULT;
for (i = 0; i < c; i++)
rtvals[i] = VM_PAGER_FAIL;
return VM_PAGER_FAIL;
if (swap_pager_swp_alloc(object, M_NOWAIT) != 0) {
object->type = OBJT_DEFAULT;
for (i = 0; i < c; i++)
rtvals[i] = VM_PAGER_FAIL;
return VM_PAGER_FAIL;
}
}
return swap_pager_putpages(object, m, c, sync, rtvals);