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NFS: Optimise NFS close()

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Close-to-open cache consistency rules really only require us to flush out
writes on calls to close(), and require us to revalidate attributes on the
very last close of the file.

Currently we appear to be doing a lot of extra attribute revalidation
and cache flushes.

Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
This commit is contained in:
Trond Myklebust
2009-03-19 15:35:50 -04:00
parent b1e4adf4ea
commit 7fe5c398fc
7 changed files with 47 additions and 21 deletions
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10
fs/nfs/nfs4proc.c
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@@ -1572,6 +1572,15 @@ out_drop:
return 0;
}
void nfs4_close_context(struct nfs_open_context *ctx, int is_sync)
{
if (ctx->state == NULL)
return;
if (is_sync)
nfs4_close_sync(&ctx->path, ctx->state, ctx->mode);
else
nfs4_close_state(&ctx->path, ctx->state, ctx->mode);
}
static int _nfs4_server_capabilities(struct nfs_server *server, struct nfs_fh *fhandle)
{
@@ -3776,6 +3785,7 @@ const struct nfs_rpc_ops nfs_v4_clientops = {
.commit_done = nfs4_commit_done,
.lock = nfs4_proc_lock,
.clear_acl_cache = nfs4_zap_acl_attr,
.close_context = nfs4_close_context,
};
/*