blkmapd: Use getconf(_SC_PAGE_SIZE)

PAGE_SIZE is not exported by all architectures as it is not fixed: it
can depend on the model of the machine. So it's better to query the
system configuration for the actual page size on the machine.

Signed-off-by: Luk Claes <luk@debian.org>
Signed-off-by: Steve Dickson <steved@redhat.com>

diff --git a/utils/blkmapd/device-process.c b/utils/blkmapd/device-process.c
index 27ff374da8626d2474fa97107037ebea28a89302..652a7a8363449682d27a283e4da3e17adbf418c4 100644 (file)
--- a/utils/blkmapd/device-process.c
+++ b/utils/blkmapd/device-process.c
@@ -296,7 +296,7 @@ decode_blk_volume(uint32_t **pp, uint32_t *end, struct bl_volume *vols, int voln
                off_t stripe_unit = vol->param.bv_stripe_unit;
                /* Check limitations imposed by device-mapper */
                if ((stripe_unit & (stripe_unit - 1)) != 0
-                   || stripe_unit < (off_t) (PAGE_SIZE >> 9))
+                   || stripe_unit < (off_t) (sysconf(_SC_PAGE_SIZE) >> 9))
                        return -EIO;
                BLK_READBUF(p, end, 4);
                READ32(vol->bv_vol_n);