From: Christoph Lameter <clameter@engr.sgi.com>
To: akpm@osdl.org
Cc: linux-mm@kvack.org
Subject: Fix sys_migrate_pages: Move all pages when invoked from root
Date: Fri, 24 Feb 2006 16:17:44 -0800 (PST) [thread overview]
Message-ID: <Pine.LNX.4.64.0602241616540.24013@schroedinger.engr.sgi.com> (raw)
Currently sys_migrate_pages only moves pages belonging to a process.
This is okay when invoked from a regular user. But if invoked from
root it should move all pages as documented in the migrate_pages manpage.
Signed-off-by: Christoph Lameter <clameter@sgi.com>
Index: linux-2.6.16-rc4/mm/mempolicy.c
===================================================================
--- linux-2.6.16-rc4.orig/mm/mempolicy.c 2006-02-24 14:32:02.000000000 -0800
+++ linux-2.6.16-rc4/mm/mempolicy.c 2006-02-24 15:44:24.000000000 -0800
@@ -940,7 +940,8 @@ asmlinkage long sys_migrate_pages(pid_t
goto out;
}
- err = do_migrate_pages(mm, &old, &new, MPOL_MF_MOVE);
+ err = do_migrate_pages(mm, &old, &new,
+ capable(CAP_SYS_ADMIN) ? MPOL_MF_MOVE_ALL : MPOL_MF_MOVE);
out:
mmput(mm);
return err;
--
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next reply other threads:[~2006-02-25 0:17 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2006-02-25 0:17 Christoph Lameter [this message]
2006-02-25 0:47 ` Andrew Morton
2006-02-25 0:57 ` Christoph Lameter
2006-02-25 1:15 ` Andrew Morton
2006-02-25 1:27 ` Christoph Lameter
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