• Sargun Dhillon's avatar
    btrfs: add quota override flag to enable quota override for CAP_SYS_RESOURCE · f29efe29
    Sargun Dhillon authored
    This patch introduces the quota override flag to btrfs_fs_info, and a
    change to quota limit checking code to temporarily allow for quota to be
    overridden for processes with CAP_SYS_RESOURCE.
    
    It's useful for administrative programs, such as log rotation, that may
    need to temporarily use more disk space in order to free up a greater
    amount of overall disk space without yielding more disk space to the
    rest of userland.
    
    Eventually, we may want to add the idea of an operator-specific quota,
    operator reserved space, or something else to allow for administrative
    override, but this is perhaps the simplest solution.
    Signed-off-by: default avatarSargun Dhillon <sargun@sargun.me>
    Reviewed-by: default avatarDavid Sterba <dsterba@suse.com>
    [ minor changelog edits ]
    Signed-off-by: default avatarDavid Sterba <dsterba@suse.com>
    f29efe29
qgroup.c 74.7 KB