On Mon, Aug 2, 2010 at 12:39 PM, Murlin Wenzel <[email protected]> wrote:
> This patch will allow swapon03 test case to pass even when max_swapfiles is
> not known. Create maximum possible number of swapfiles during setup, then
> verify that attempting to create one more swapfile will return EPERM. This
> is meant to change as little as possible of the existing code.
>
> Signed-off-by: Murlin Ray Wenzel [email protected]
ACK.
This seems like a decent compromise because the point where this could
fail is after the first iteration and we already check for root, which
means that the first clause (CAP_SYS_ADMIN) of EPERM is caught:
EPERM
The caller does not have the CAP_SYS_ADMIN capability or the
maximal number of swap files has been reached. (The maximum is
MAX_SWAPFILES-2(30) if CONFIG_MIGRATION is enabled, MAX_SWAPFILES (32)
otherwise. In Linux kernel versions prior to 2.4.10, the maximum was
always MAX_SWAPFILES, which was 8.
Thanks!
-Garrett
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