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Commit 3fedb3c5 authored by Tom Tucker's avatar Tom Tucker Committed by Linus Torvalds
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SVCRDMA: Fix erroneous BUG_ON in send_write 



The assertion that checks for sge context overflow is
incorrectly hard-coded to 32. This causes a kernel bug
check when using big-data mounts. Changed the BUG_ON to
use the computed value RPCSVC_MAXPAGES.

Signed-off-by: default avatarTom Tucker <tom@opengridcomputing.com>
Signed-off-by: default avatarJ. Bruce Fields <bfields@citi.umich.edu>
Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
parent c48cbb40

net/sunrpc/xprtrdma/svc_rdma_sendto.c

+1 −1
Original line number Diff line number Diff line
@@ -156,7 +156,7 @@ static int send_write(struct svcxprt_rdma *xprt, struct svc_rqst *rqstp, 
	struct svc_rdma_op_ctxt *ctxt;

	int ret = 0;



	BUG_ON(sge_count >= 32);

	BUG_ON(sge_count > RPCSVC_MAXPAGES);

	dprintk("svcrdma: RDMA_WRITE rmr=%x, to=%llx, xdr_off=%d, "

		"write_len=%d, xdr_sge=%p, sge_count=%d\n",

		rmr, (unsigned long long)to, xdr_off,