sysfs: implement kobj_sysfs_assoc_lock

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kobj->dentry can go away anytime unless the user controls when the
associated sysfs node is deleted.  This patch implements
kobj_sysfs_assoc_lock which protects kobj->dentry.  This will be used
to maintain kobj based API when converting sysfs to use sysfs_dirent
tree instead of dentry/kobject.

Note that this lock belongs to kobject/driver-model not sysfs.  Once
sysfs is converted to not use kobject in its interface, this can be
removed from sysfs.

This is in preparation of object reference simplification.

Signed-off-by: Tejun Heo <htejun@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

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Tejun Heo 2007-06-14 03:45:15 +09:00 • committed by Greg Kroah-Hartman

parent 3e5190380e

commit aecdcedaab

2 changed files with 8 additions and 1 deletions

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8

fs/sysfs/dir.c

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1

fs/sysfs/sysfs.h

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