-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 On Wed, Jul 11, 2007 at 10:22:32AM +0530, Pravin wrote: > On 7/9/07, Rajat Jain <Rajat.Jain@xxxxxxxxxxxx> wrote: >> >> Hi Pravin, >> >> > ... >> > I need to provide a hook from kernel-space to userspace. >> > ... >> > ... >> > I am also looking for possibility for pausing the execution >> > kernel thread till userspace function acknowlages the data >> > and take certain action on it. >> > ... >> >> This is not possible. And well, as others may advice, not at all logical. >> If you really need access to kernel data-structures and you feel your code >> needs to be called in middle of some kernel code path, a better decision >> might be to include your code in the kernel space itself. >> >> Sitting in the userspace, the closest you can get to it is using >> call_usermodehelper() that allows you call a userspace binary. > > > Thanx for info > I will re-considar my decision about putting my code in userspace. > I was facing some problems to do my work from kernel space. > my code need to take some decision based on some policy file, > and reading policies from a file. > This is the reason I am not comfortable in putting my code in kernel. > as reading file from kernel space is little tedious thing, and even thats > not > recemended. thats y i am confused about how to tackle this problem. The usual solution to this problem is to have a small userland helper that reads the policy file and feed it to the kernel through a device node. Erik - -- They're all fools. Don't worry. Darwin may be slow, but he'll eventually get them. -- Matthew Lammers in alt.sysadmin.recovery -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.6 (GNU/Linux) iD8DBQFGlI0X/PlVHJtIto0RAsP2AJ0RHg3O7qvUN8l/Pg0C3ot6lRfhSgCbBaQw RZ4Uomsh6HUjA3f6EJl3v7w= =aMF6 -----END PGP SIGNATURE----- -- To unsubscribe from this list: send an email with "unsubscribe kernelnewbies" to ecartis@xxxxxxxxxxxx Please read the FAQ at http://kernelnewbies.org/FAQ
