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[v2] nbd/trivial: fix type cast for ioctl

Message ID 1428304781-1205-1-git-send-email-bogdan.purcareata@freescale.com
State New
Headers show

Commit Message

Bogdan Purcareata April 6, 2015, 7:19 a.m. UTC 
This fixes ioctl behavior on powerpc e6500 platforms with 64bit kernel and 32bit
userspace. The current type cast has no effect there and the value passed to the
kernel is still 0. Probably an issue related to the compiler, since I'm assuming
the same configuration works on a similar setup on x86.

Also ensure consistency with previous type cast in TRACE message.

- v2: paranthesis fix

Signed-off-by: Bogdan Purcareata <bogdan.purcareata@freescale.com>
---
 nbd.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
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Patch

diff --git a/nbd.c b/nbd.c
index 91b7d56..da81a5b 100644
--- a/nbd.c
+++ b/nbd.c
@@ -681,7 +681,7 @@  int nbd_init(int fd, int csock, uint32_t flags, off_t size)
 
     TRACE("Setting size to %zd block(s)", (size_t)(size / BDRV_SECTOR_SIZE));
 
-    if (ioctl(fd, NBD_SET_SIZE_BLOCKS, size / (size_t)BDRV_SECTOR_SIZE) < 0) {
+    if (ioctl(fd, NBD_SET_SIZE_BLOCKS, (size_t)(size / BDRV_SECTOR_SIZE)) < 0) {
         int serrno = errno;
         LOG("Failed setting size (in blocks)");
         return -serrno;