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Kill unsharing fs_struct in __set_personality()

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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>
This commit is contained in:
Al Viro 2009-03-30 05:45:36 -04:00
parent 15f7176eb1
commit 11d06b2a1e
1 changed files with 0 additions and 22 deletions
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22
kernel/exec_domain.c
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@ -145,28 +145,6 @@ __set_personality(u_long personality)
return 0;
}
if (atomic_read(&current->fs->count) != 1) {
struct fs_struct *fsp, *ofsp;
fsp = copy_fs_struct(current->fs);
if (fsp == NULL) {
module_put(ep->module);
return -ENOMEM;
}
task_lock(current);
ofsp = current->fs;
current->fs = fsp;
task_unlock(current);
put_fs_struct(ofsp);
}
/*
* At that point we are guaranteed to be the sole owner of
* current->fs.
*/
current->personality = personality;
oep = current_thread_info()->exec_domain;
current_thread_info()->exec_domain = ep;