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authorTejun Heo <tj@kernel.org>2014-02-03 20:02:58 +0100
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2014-02-08 00:42:40 +0100
commit988cd7afb3f37598891ca70b4c6eb914c338c46a (patch)
treecea29f9fe0d8057441f3350235ec1666ff231d7a /samples
parentkernfs: invoke kernfs_unmap_bin_file() directly from kernfs_deactivate() (diff)
downloadlinux-988cd7afb3f37598891ca70b4c6eb914c338c46a.tar.xz
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kernfs: remove kernfs_addrm_cxt
kernfs_addrm_cxt and the accompanying kernfs_addrm_start/finish() were added because there were operations which should be performed outside kernfs_mutex after adding and removing kernfs_nodes. The necessary operations were recorded in kernfs_addrm_cxt and performed by kernfs_addrm_finish(); however, after the recent changes which relocated deactivation and unmapping so that they're performed directly during removal, the only operation kernfs_addrm_finish() performs is kernfs_put(), which can be moved inside the removal path too. This patch moves the kernfs_put() of the base ref to __kernfs_remove() and remove kernfs_addrm_cxt and kernfs_addrm_start/finish(). * kernfs_add_one() is updated to grab and release kernfs_mutex itself. sysfs_addrm_start/finish() invocations around it are removed from all users. * __kernfs_remove() puts an unlinked node directly instead of chaining it to kernfs_addrm_cxt. Its callers are updated to grab and release kernfs_mutex instead of calling kernfs_addrm_start/finish() around it. v2: Rebased on top of "kernfs: associate a new kernfs_node with its parent on creation" which dropped @parent from kernfs_add_one(). Signed-off-by: Tejun Heo <tj@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'samples')
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