• Tejun Heo's avatar
    sysfs: remove sysfs_addrm_cxt->parent_sd · d69ac5a0
    Tejun Heo authored
    
    
    sysfs_addrm_start/finish() enclose sysfs_dirent additions and
    deletions and sysfs_addrm_cxt is used to record information necessary
    to finish the operations.  Currently, sysfs_addrm_start() takes
    @parent_sd, records it in sysfs_addrm_cxt, and assumes that all
    operations in the block are performed under that @parent_sd.
    
    This assumption has been fine until now but we want to make some
    operations behave recursively and, while having @parent_sd recorded in
    sysfs_addrm_cxt doesn't necessarily prevents that, it becomes
    confusing.
    
    This patch removes sysfs_addrm_cxt->parent_sd and makes
    sysfs_add_one() take an explicit @parent_sd parameter.  Note that
    sysfs_remove_one() doesn't need the extra argument as its parent is
    always known from the target @sd.
    
    While at it, add __acquires/releases() notations to
    sysfs_addrm_start/finish() respectively.
    
    This patch doesn't make any functional difference.
    Signed-off-by: default avatarTejun Heo <tj@kernel.org>
    Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
    d69ac5a0