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| author |   Trond Myklebust <trond.myklebust@hammerspace.com> | 2018-09-16 00:08:20 -0400 |
|---|---|---|
| committer | Trond Myklebust <trond.myklebust@hammerspace.com> | 2018-09-30 15:35:16 -0400 |
| commit | 431f6eb3570f286036bc8718a908a283f5d99473 (patch) | |
| tree | 81117e3e64d4e6e3b847539cde5338a1e95eccca /fs/nfs/nfs3xdr.c | |
| parent | SUNRPC: Convert the xprt->sending queue back to an ordinary wait queue (diff) | |
| download | linux-dev-431f6eb3570f286036bc8718a908a283f5d99473.tar.xz linux-dev-431f6eb3570f286036bc8718a908a283f5d99473.zip | |
SUNRPC: Add a label for RPC calls that require allocation on receive
If the RPC call relies on the receive call allocating pages as buffers,
then let's label it so that we
a) Don't leak memory by allocating pages for requests that do not expect
this behaviour
b) Can optimise for the common case where calls do not require allocation.
Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
Diffstat (limited to 'fs/nfs/nfs3xdr.c')
| -rw-r--r-- | fs/nfs/nfs3xdr.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/fs/nfs/nfs3xdr.c b/fs/nfs/nfs3xdr.c index 64e4fa33d89f..d8c4c10b15f7 100644 --- a/fs/nfs/nfs3xdr.c +++ b/fs/nfs/nfs3xdr.c @@ -1364,10 +1364,12 @@ static void nfs3_xdr_enc_getacl3args(struct rpc_rqst *req, encode_nfs_fh3(xdr, args->fh); encode_uint32(xdr, args->mask); - if (args->mask & (NFS_ACL | NFS_DFACL)) + if (args->mask & (NFS_ACL | NFS_DFACL)) { prepare_reply_buffer(req, args->pages, 0, NFSACL_MAXPAGES << PAGE_SHIFT, ACL3_getaclres_sz); + req->rq_rcv_buf.flags |= XDRBUF_SPARSE_PAGES; + } } static void nfs3_xdr_enc_setacl3args(struct rpc_rqst *req, |