debian/patches/18-dont-use-PAGE_SIZE.patch

[nfs-utils.git] / debian / patches / 18-dont-use-PAGE_SIZE.patch

diff --git a/debian/patches/18-dont-use-PAGE_SIZE.patch b/debian/patches/18-dont-use-PAGE_SIZE.patch
new file mode 100644 (file)
index 0000000..a2113e6
--- /dev/null
+++ b/debian/patches/18-dont-use-PAGE_SIZE.patch
@@ -0,0 +1,20 @@
+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.
+
+---
+ utils/blkmapd/device-process.c |    2 +-
+ 1 files changed, 1 insertions(+), 1 deletions(-)
+
+diff --git a/utils/blkmapd/device-process.c b/utils/blkmapd/device-process.c
+index 27ff374..652a7a8 100644
+--- 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);
+