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| author | Trond Myklebust <Trond.Myklebust@netapp.com> | 2010-04-16 16:22:46 -0400 |
|---|---|---|
| committer | Trond Myklebust <Trond.Myklebust@netapp.com> | 2010-05-14 15:09:22 -0400 |
| commit | 364d015e5208e4669a4ae9fab2ab104ff26bc159 (patch) | |
| tree | 33d949fe10f70dda0d9ab018e6c47595c25b700b | |
| parent | fbca779a8d240d82ef1439247033fd491f81547c (diff) | |
| download | blackbird-op-linux-364d015e5208e4669a4ae9fab2ab104ff26bc159.tar.gz blackbird-op-linux-364d015e5208e4669a4ae9fab2ab104ff26bc159.zip | |
NFSv4: Reduce the stack footprint of try_location()
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
| -rw-r--r-- | fs/nfs/nfs4namespace.c | 10 |
1 files changed, 7 insertions, 3 deletions
diff --git a/fs/nfs/nfs4namespace.c b/fs/nfs/nfs4namespace.c index f071d12c613b..832f9b50f7a0 100644 --- a/fs/nfs/nfs4namespace.c +++ b/fs/nfs/nfs4namespace.c @@ -115,6 +115,7 @@ static struct vfsmount *try_location(struct nfs_clone_mount *mountdata, char *page, char *page2, const struct nfs4_fs_location *location) { + const size_t addr_bufsize = sizeof(struct sockaddr_storage); struct vfsmount *mnt = ERR_PTR(-ENOENT); char *mnt_path; unsigned int maxbuflen; @@ -126,9 +127,12 @@ static struct vfsmount *try_location(struct nfs_clone_mount *mountdata, mountdata->mnt_path = mnt_path; maxbuflen = mnt_path - 1 - page2; + mountdata->addr = kmalloc(addr_bufsize, GFP_KERNEL); + if (mountdata->addr == NULL) + return ERR_PTR(-ENOMEM); + for (s = 0; s < location->nservers; s++) { const struct nfs4_string *buf = &location->servers[s]; - struct sockaddr_storage addr; if (buf->len <= 0 || buf->len >= maxbuflen) continue; @@ -137,11 +141,10 @@ static struct vfsmount *try_location(struct nfs_clone_mount *mountdata, continue; mountdata->addrlen = nfs_parse_server_name(buf->data, buf->len, - (struct sockaddr *)&addr, sizeof(addr)); + mountdata->addr, addr_bufsize); if (mountdata->addrlen == 0) continue; - mountdata->addr = (struct sockaddr *)&addr; rpc_set_port(mountdata->addr, NFS_PORT); memcpy(page2, buf->data, buf->len); @@ -156,6 +159,7 @@ static struct vfsmount *try_location(struct nfs_clone_mount *mountdata, if (!IS_ERR(mnt)) break; } + kfree(mountdata->addr); return mnt; } |
