RAID1 robust read and read/write correct patch

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I'd like to try this patch http://marc.theaimsgroup.com/?l=linux-raid&m=110704868115609&w=2 with EVMS BBR.

Has anyone tried it on 2.6.10 (with FC2 1.9 and EVMS patches)? Has anyone tried the rewrite part at all? I don't know md or the kernel or this patch, but the following lines of the patch seem suspicious to me. Should it set R1BIO_ReadRewrite instead? That bit gets tested later, whereas it seems like R1BIO_ReadRetry is never tested and R1BIO_ReadRewrite is never set.

+#ifdef DO_ADD_READ_WRITE_CORRECT
+	        else    /* tell next time we're here that we're a retry */
+	                set_bit(R1BIO_ReadRetry, &r1_bio->state);
+#endif /* DO_ADD_READ_WRITE_CORRECT */


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