Author: kan
Date: Mon Dec 1 22:33:50 2008
New Revision: 185533
URL: http://svn.freebsd.org/changeset/base/185533
Log:
Shared memory objects that have size which is not necessarily equal to
exact multiple of system page size should still be allowed to be mapped
in their entirety to match the regular vnode backed file behavior.
Reported by: ed
Reviewed by: jhb
Modified:
head/sys/kern/uipc_shm.c
Modified: head/sys/kern/uipc_shm.c
==============================================================================
--- head/sys/kern/uipc_shm.c Mon Dec 1 21:15:04 2008 (r185532)
+++ head/sys/kern/uipc_shm.c Mon Dec 1 22:33:50 2008 (r185533)
@@ -605,7 +605,8 @@ shm_mmap(struct shmfd *shmfd, vm_size_t
* XXXRW: This validation is probably insufficient, and subject to
* sign errors. It should be fixed.
*/
- if (foff >= shmfd->shm_size || foff + objsize > shmfd->shm_size)
+ if (foff >= shmfd->shm_size ||
+ foff + objsize > round_page(shmfd->shm_size))
return (EINVAL);
mtx_lock(&shm_timestamp_lock);
_______________________________________________
svn-src-all@freebsd.org mailing list
http://lists.freebsd.org/mailman/listinfo/svn-src-all
To unsubscribe, send any mail to "[EMAIL PROTECTED]"
