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nfsd4: disable zero-copy on non-final read ops

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To ensure ordering of read data with any following operations, turn off
zero copy if the read is not the final operation in the compound.

Signed-off-by: J. Bruce Fields <bfields@redhat.com>
This commit is contained in:
J. Bruce Fields
2012-12-04 18:03:46 -05:00
parent 3a28e33111
commit 9b3234b922
3 changed files with 19 additions and 8 deletions
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8
fs/nfsd/nfs4state.c
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@@ -1855,14 +1855,6 @@ out_free_session:
goto out;
}
static bool nfsd4_last_compound_op(struct svc_rqst *rqstp)
{
struct nfsd4_compoundres *resp = rqstp->rq_resp;
struct nfsd4_compoundargs *argp = rqstp->rq_argp;
return argp->opcnt == resp->opcnt;
}
static __be32 nfsd4_map_bcts_dir(u32 *dir)
{
switch (*dir) {