xiaomi-sm8450/android_kernel_xiaomi_sm8450
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

NFS: DNS resolver cache per network namespace context introduced

Browse Source 
This patch implements DNS resolver cache creation and registration for each
alive network namespace context.
This was done by registering NFS per-net operations, responsible for DNS cache
allocation/register and unregister/destructioning instead of initialization and
destruction of static "nfs_dns_resolve" cache detail (this one was removed).
Pointer to network dns resolver cache is stored in new per-net "nfs_net"
structure.
This patch also changes nfs_dns_resolve_name() function prototype (and it's
calls) by adding network pointer parameter, which is used to get proper DNS
resolver cache pointer for do_cache_lookup_wait() call.

Note: empty nfs_dns_resolver_init() and nfs_dns_resolver_destroy() functions
will be used in next patch in the series.

Signed-off-by: Stanislav Kinsbursky <skinsbursky@parallels.com>
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
This commit is contained in:
Stanislav Kinsbursky
2011-11-25 17:13:04 +03:00
committed by Trond Myklebust
parent 5c1cacb175
commit 1b340d0118
5 changed files with 123 additions and 41 deletions
Download Patch File Download Diff File Expand all files Collapse all files

8
fs/nfs/nfs4namespace.c
View File

@@ -94,13 +94,14 @@ static int nfs4_validate_fspath(struct dentry *dentry,
}
static size_t nfs_parse_server_name(char *string, size_t len,
struct sockaddr *sa, size_t salen)
struct sockaddr *sa, size_t salen, struct nfs_server *server)
{
ssize_t ret;
ret = rpc_pton(string, len, sa, salen);
if (ret == 0) {
ret = nfs_dns_resolve_name(string, len, sa, salen);
ret = nfs_dns_resolve_name(server->client->cl_xprt->xprt_net,
string, len, sa, salen);
if (ret < 0)
ret = 0;
}
@@ -137,7 +138,8 @@ static struct vfsmount *try_location(struct nfs_clone_mount *mountdata,
continue;
mountdata->addrlen = nfs_parse_server_name(buf->data, buf->len,
mountdata->addr, addr_bufsize);
mountdata->addr, addr_bufsize,
NFS_SB(mountdata->sb));
if (mountdata->addrlen == 0)
continue;