AcoSail/kernel_optimize_test
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Merge branch 'for-2.6.40' of git://linux-nfs.org/~bfields/linux

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* 'for-2.6.40' of git://linux-nfs.org/~bfields/linux:
  nfsd4: fix break_lease flags on nfsd open
  nfsd: link returns nfserr_delay when breaking lease
  nfsd: v4 support requires CRYPTO
  nfsd: fix dependency of nfsd on auth_rpcgss
This commit is contained in:
Linus Torvalds 2011-06-20 20:10:52 -07:00
commit eda0841094
5 changed files with 25 additions and 21 deletions
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1
fs/nfsd/Kconfig
View File

@ -82,6 +82,7 @@ config NFSD_V4
select NFSD_V3
select FS_POSIX_ACL
select SUNRPC_GSS
select CRYPTO
help
This option enables support in your system's NFS server for
version 4 of the NFS protocol (RFC 3530).

19
fs/nfsd/nfsctl.c
View File

@ -13,6 +13,7 @@
#include <linux/lockd/lockd.h>
#include <linux/sunrpc/clnt.h>
#include <linux/sunrpc/gss_api.h>
#include <linux/sunrpc/gss_krb5_enctypes.h>
#include "idmap.h"
#include "nfsd.h"
@ -189,18 +190,10 @@ static struct file_operations export_features_operations = {
.release = single_release,
};
#ifdef CONFIG_SUNRPC_GSS
#if defined(CONFIG_SUNRPC_GSS) || defined(CONFIG_SUNRPC_GSS_MODULE)
static int supported_enctypes_show(struct seq_file *m, void *v)
{
struct gss_api_mech *k5mech;
k5mech = gss_mech_get_by_name("krb5");
if (k5mech == NULL)
goto out;
if (k5mech->gm_upcall_enctypes != NULL)
seq_printf(m, k5mech->gm_upcall_enctypes);
gss_mech_put(k5mech);
out:
seq_printf(m, KRB5_SUPPORTED_ENCTYPES);
return 0;
}
@ -215,7 +208,7 @@ static struct file_operations supported_enctypes_ops = {
.llseek = seq_lseek,
.release = single_release,
};
#endif /* CONFIG_SUNRPC_GSS */
#endif /* CONFIG_SUNRPC_GSS or CONFIG_SUNRPC_GSS_MODULE */
extern int nfsd_pool_stats_open(struct inode *inode, struct file *file);
extern int nfsd_pool_stats_release(struct inode *inode, struct file *file);
@ -1427,9 +1420,9 @@ static int nfsd_fill_super(struct super_block * sb, void * data, int silent)
[NFSD_Versions] = {"versions", &transaction_ops, S_IWUSR|S_IRUSR},
[NFSD_Ports] = {"portlist", &transaction_ops, S_IWUSR|S_IRUGO},
[NFSD_MaxBlkSize] = {"max_block_size", &transaction_ops, S_IWUSR|S_IRUGO},
#ifdef CONFIG_SUNRPC_GSS
#if defined(CONFIG_SUNRPC_GSS) || defined(CONFIG_SUNRPC_GSS_MODULE)
[NFSD_SupportedEnctypes] = {"supported_krb5_enctypes", &supported_enctypes_ops, S_IRUGO},
#endif /* CONFIG_SUNRPC_GSS */
#endif /* CONFIG_SUNRPC_GSS or CONFIG_SUNRPC_GSS_MODULE */
#ifdef CONFIG_NFSD_V4
[NFSD_Leasetime] = {"nfsv4leasetime", &transaction_ops, S_IWUSR|S_IRUSR},
[NFSD_Gracetime] = {"nfsv4gracetime", &transaction_ops, S_IWUSR|S_IRUSR},

19
fs/nfsd/vfs.c
View File

@ -696,7 +696,15 @@ nfsd_access(struct svc_rqst *rqstp, struct svc_fh *fhp, u32 *access, u32 *suppor
}
#endif /* CONFIG_NFSD_V3 */
static int nfsd_open_break_lease(struct inode *inode, int access)
{
unsigned int mode;
if (access & NFSD_MAY_NOT_BREAK_LEASE)
return 0;
mode = (access & NFSD_MAY_WRITE) ? O_WRONLY : O_RDONLY;
return break_lease(inode, mode | O_NONBLOCK);
}
/*
* Open an existing file or directory.
@ -744,12 +752,7 @@ nfsd_open(struct svc_rqst *rqstp, struct svc_fh *fhp, int type,
if (!inode->i_fop)
goto out;
/*
* Check to see if there are any leases on this file.
* This may block while leases are broken.
*/
if (!(access & NFSD_MAY_NOT_BREAK_LEASE))
host_err = break_lease(inode, O_NONBLOCK | ((access & NFSD_MAY_WRITE) ? O_WRONLY : 0));
host_err = nfsd_open_break_lease(inode, access);
if (host_err) /* NOMEM or WOULDBLOCK */
goto out_nfserr;
@ -1660,8 +1663,10 @@ nfsd_link(struct svc_rqst *rqstp, struct svc_fh *ffhp,
if (!dold->d_inode)
goto out_drop_write;
host_err = nfsd_break_lease(dold->d_inode);
if (host_err)
if (host_err) {
err = nfserrno(host_err);
goto out_drop_write;
}
host_err = vfs_link(dold, dirp, dnew);
if (!host_err) {
err = nfserrno(commit_metadata(ffhp));

4
include/linux/sunrpc/gss_krb5_enctypes.h Normal file
View File

@ -0,0 +1,4 @@
/*
* Dumb way to share this static piece of information with nfsd
*/
#define KRB5_SUPPORTED_ENCTYPES "18,17,16,23,3,1,2"

3
net/sunrpc/auth_gss/gss_krb5_mech.c
View File

@ -43,6 +43,7 @@
#include <linux/sunrpc/gss_krb5.h>
#include <linux/sunrpc/xdr.h>
#include <linux/crypto.h>
#include <linux/sunrpc/gss_krb5_enctypes.h>
#ifdef RPC_DEBUG
# define RPCDBG_FACILITY RPCDBG_AUTH
@ -750,7 +751,7 @@ static struct gss_api_mech gss_kerberos_mech = {
.gm_ops = &gss_kerberos_ops,
.gm_pf_num = ARRAY_SIZE(gss_kerberos_pfs),
.gm_pfs = gss_kerberos_pfs,
.gm_upcall_enctypes = "18,17,16,23,3,1,2",
.gm_upcall_enctypes = KRB5_SUPPORTED_ENCTYPES,
};
static int __init init_kerberos_module(void)