Re: [LTP] Query regarding swapon(2) testcase

[Dan K. <da...@ke...>]

Aniruddha M Marathe wrote:
> Hi,
> I am writing test cases for swapon(2).
> 
> Swapon system call returns EPERM when number of swapfiles is more than MAX_SWAPFILES. 
> 
> MAX_SWAPFILES is a macro defined in linux/swap.h as:
> #define MAX_SWAPFILES_SHIFT 5
> #define MAX_SWAPFILES (1 << MAX_SWAPFILES_SHIFT)
 > ...
> What should I do?
> 1. drop test for this errno
> 2. include linux/swap.h (restriction will come on glibc)
> 3. hardcode it to 32 ( restriction will come on kernel version)

Hmm, I wonder if Linux should define sysconf(_SC_MAX_SWAPFILES)...

-- 
Dan Kegel
Linux User #78045
http://www.kegel.com