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SYSFS_UNBREAK_ACTIVE(9) The Filesystem for Exporting K SYSFS_UNBREAK_ACTIVE(9)

NAME

sysfs_unbreak_active_protection - restore “active” protection

SYNOPSIS

void sysfs_unbreak_active_protection(struct kernfs_node * kn);

ARGUMENTS

kn
Pointer returned by sysfs_break_active_protection.

DESCRIPTION

Undo the effects of sysfs_break_active_protection. Since this function calls kernfs_put on the kernfs node that corresponds to the 'attr' argument passed to sysfs_break_active_protection that attribute may have been removed between the sysfs_break_active_protection and sysfs_unbreak_active_protection calls, it is not safe to access kn after this function has returned.

COPYRIGHT

April 2019 Kernel Hackers Manual 4.9.