Function report

Linux Kernel

v5.5.9

Brick Technologies Co., Ltd

Source Code:kernel\livepatch\core.c Create Date:2022-07-28 10:30:33
Last Modify:2020-03-12 14:18:49 Copyright©Brick
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Annotation kernel can get tool activityDownload SCCTChinese

Name:This function implements the free part that must be called outside* klp_mutex.* It must be called after klp_free_patch_start(). And it has to be* the last function accessing the livepatch structures when the patch* gets disabled.

Proto:static void klp_free_patch_finish(struct klp_patch *patch)

Type:void

Parameter:

TypeParameterName
struct klp_patch *patch
660  kobject_put() - Decrement refcount for object.*@kobj: object.* Decrement the refcount, and if 0, call kobject_cleanup().
661  wait_for_completion: - waits for completion of a task*@x: holds the state of this particular completion* This waits to be signaled for completion of a specific task. It is NOT* interruptible and there is no timeout.* See also similar routines (i
664  If Not forced Then module_put(xternal )
Caller
NameDescribe
klp_free_patch_work_fnThe livepatch might be freed from sysfs interface created by the patch.* This work allows to wait until the interface is destroyed in a separate* context.
klp_enable_patchklp_enable_patch() - enable the livepatch*@patch: patch to be enabled* Initializes the data structure associated with the patch, creates the sysfs* interface, performs the needed symbol lookups and code relocations,