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Revert "kernfs: remove kernfs_addrm_cxt"

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This reverts commit 99177a3411.

Tejun writes:
        I'm sorry but can you please revert the whole series?
        get_active() waiting while a node is deactivated has potential
        to lead to deadlock and that deactivate/reactivate interface is
        something fundamentally flawed and that cgroup will have to work
        with the remove_self() like everybody else.  IOW, I think the
        first posting was correct.

Cc: Tejun Heo <tj@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Greg Kroah-Hartman 2014-01-13 14:20:56 -08:00
parent f4b3e631b3
commit 7653fe9d6c
5 changed files with 121 additions and 29 deletions
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4
include/linux/kernfs.h
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@ -89,6 +89,10 @@ struct kernfs_node {
struct rb_node rb;
union {
struct kernfs_node *removed_list;
} u;
const void *ns; /* namespace tag */
unsigned int hash; /* ns + name hash */
union {