• Yang Xu's avatar
    selftests/zram: Adapt the situation that /dev/zram0 is being used · 01dabed2
    Yang Xu authored
    If zram-generator package is installed and works, then we can not remove
    zram module because zram swap is being used. This case needs a clean zram
    environment, change this test by using hot_add/hot_remove interface. So
    even zram device is being used, we still can add zram device and remove
    them in cleanup.
    
    The two interface was introduced since kernel commit 6566d1a3("zram:
    add dynamic device add/remove functionality") in v4.2-rc1. If kernel
    supports these two interface, we use hot_add/hot_remove to slove this
    problem, if not, just check whether zram is being used or built in, then
    skip it on old kernel.
    Signed-off-by: default avatarYang Xu <xuyang2018.jy@fujitsu.com>
    Signed-off-by: default avatarShuah Khan <skhan@linuxfoundation.org>
    01dabed2
zram01.sh 1.93 KB