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authorNeilBrown <neilb@suse.de>2006-10-04 05:15:47 -0400
committerLinus Torvalds <torvalds@g5.osdl.org>2006-10-04 10:55:15 -0400
commit3cc03b164cf01c6f36e64720b58610d292fb26f7 (patch)
treeb558e11a087945ad5b9a1a25483aa2acc8d93fbb /fs/nfsd/nfs4proc.c
parent4452435948424e5322c2a2fefbdc2cf3732cc45d (diff)
[PATCH] knfsd: Avoid excess stack usage in svc_tcp_recvfrom
.. by allocating the array of 'kvec' in 'struct svc_rqst'. As we plan to increase RPCSVC_MAXPAGES from 8 upto 256, we can no longer allocate an array of this size on the stack. So we allocate it in 'struct svc_rqst'. However svc_rqst contains (indirectly) an array of the same type and size (actually several, but they are in a union). So rather than waste space, we move those arrays out of the separately allocated union and into svc_rqst to share with the kvec moved out of svc_tcp_recvfrom (various arrays are used at different times, so there is no conflict). Signed-off-by: Neil Brown <neilb@suse.de> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'fs/nfsd/nfs4proc.c')
-rw-r--r--fs/nfsd/nfs4proc.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/fs/nfsd/nfs4proc.c b/fs/nfsd/nfs4proc.c
index 15ded7a30a72..38b0f91175d0 100644
--- a/fs/nfsd/nfs4proc.c
+++ b/fs/nfsd/nfs4proc.c
@@ -646,7 +646,7 @@ nfsd4_write(struct svc_rqst *rqstp, struct svc_fh *current_fh, struct nfsd4_writ
646 *p++ = nfssvc_boot.tv_usec; 646 *p++ = nfssvc_boot.tv_usec;
647 647
648 status = nfsd_write(rqstp, current_fh, filp, write->wr_offset, 648 status = nfsd_write(rqstp, current_fh, filp, write->wr_offset,
649 write->wr_vec, write->wr_vlen, write->wr_buflen, 649 rqstp->rq_vec, write->wr_vlen, write->wr_buflen,
650 &write->wr_how_written); 650 &write->wr_how_written);
651 if (filp) 651 if (filp)
652 fput(filp); 652 fput(filp);