On Mon, 19 Mar 2012 11:11:56 +0900, KAMEZAWA Hiroyuki [off-list ref] wrote:

(2012/03/17 2:39), Aneesh Kumar K.V wrote:

quoted

From: "Aneesh Kumar K.V" <redacted>

Using VM_FAULT_* codes with ERR_PTR will require us to make sure
VM_FAULT_* values will not exceed MAX_ERRNO value.

Signed-off-by: Aneesh Kumar K.V <redacted>

Is this a bug fix ?

No. Currently the values of VM_FAULT_* codes are all below MAX_ERRNO. The
changes in the patch are done based on the suggestion from Andrew. 

http://article.gmane.org/gmane.linux.kernel.cgroups/1160

Reviewed-by: KAMEZAWA Hiroyuki <redacted>

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