Kill unsharing fs_struct in __set_personality()
That's a rudiment of altroot support. I.e. it should've been buried a long time ago. Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
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@ -145,28 +145,6 @@ __set_personality(u_long personality)
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return 0;
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}
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if (atomic_read(¤t->fs->count) != 1) {
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struct fs_struct *fsp, *ofsp;
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fsp = copy_fs_struct(current->fs);
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if (fsp == NULL) {
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module_put(ep->module);
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return -ENOMEM;
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}
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task_lock(current);
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ofsp = current->fs;
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current->fs = fsp;
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task_unlock(current);
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put_fs_struct(ofsp);
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}
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/*
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* At that point we are guaranteed to be the sole owner of
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* current->fs.
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*/
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current->personality = personality;
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oep = current_thread_info()->exec_domain;
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current_thread_info()->exec_domain = ep;
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