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    SubjectRe: [RFC][PATCH 2/2] first callers of process_deny_checkpoint()
    > diff -puN ipc/mqueue.c~no-checkpointing-for-sockets ipc/mqueue.c
    > --- linux-2.6.git/ipc/mqueue.c~no-checkpointing-for-sockets 2008-10-09 11:56:58.000000000 -0700
    > +++ linux-2.6.git-dave/ipc/mqueue.c 2008-10-09 11:56:58.000000000 -0700
    > @@ -14,6 +14,7 @@
    > */
    >
    > #include <linux/capability.h>
    > +#include <linux/checkpoint.h>
    > #include <linux/init.h>
    > #include <linux/pagemap.h>
    > #include <linux/file.h>
    > @@ -655,6 +656,8 @@ asmlinkage long sys_mq_open(const char _
    > char *name;
    > int fd, error;
    >
    > + process_deny_checkpointing(current);
    > +

    mqueue being a file system, i would put the checks in the inode_operations.

    Also, you can't always deny ! I would expect some allow in sys_mq_unlink().

    C.


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