nfsd: allow deprecated interface to be compiled out.
Add CONFIG_NFSD_DEPRECATED, default to y. Only include deprecated interface if this is defined. This allows distros to remove this interface before the official removal, and allows developers to test without it. Signed-off-by: NeilBrown <neilb@suse.de> Signed-off-by: J. Bruce Fields <bfields@redhat.com>
This commit is contained in:
NeilBrown
J. Bruce Fields
parent
c67874f942
commit
1e1405673e
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@ -29,10 +29,7 @@ obj-$(CONFIG_EVENTFD) += eventfd.o
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obj-$(CONFIG_AIO) += aio.o
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obj-$(CONFIG_FILE_LOCKING) += locks.o
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obj-$(CONFIG_COMPAT) += compat.o compat_ioctl.o
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nfsd-$(CONFIG_NFSD) := nfsctl.o
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obj-y += $(nfsd-y) $(nfsd-m)
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obj-$(CONFIG_NFSD_DEPRECATED) += nfsctl.o
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obj-$(CONFIG_BINFMT_AOUT) += binfmt_aout.o
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obj-$(CONFIG_BINFMT_EM86) += binfmt_em86.o
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obj-$(CONFIG_BINFMT_MISC) += binfmt_misc.o
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@ -1963,7 +1963,7 @@ asmlinkage long compat_sys_ppoll(struct pollfd __user *ufds,
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}
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#endif /* HAVE_SET_RESTORE_SIGMASK */
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#if defined(CONFIG_NFSD) || defined(CONFIG_NFSD_MODULE)
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#if (defined(CONFIG_NFSD) || defined(CONFIG_NFSD_MODULE)) && !defined(CONFIG_NFSD_DEPRECATED)
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/* Stuff for NFS server syscalls... */
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struct compat_nfsctl_svc {
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u16 svc32_port;
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@ -28,6 +28,18 @@ config NFSD
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If unsure, say N.
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config NFSD_DEPRECATED
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bool "Include support for deprecated syscall interface to NFSD"
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depends on NFSD
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default y
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help
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The syscall interface to nfsd was obsoleted in 2.6.0 by a new
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filesystem based interface. The old interface is due for removal
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in 2.6.40. If you wish to remove the interface before then
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say N.
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In unsure, say Y.
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config NFSD_V2_ACL
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bool
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depends on NFSD
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@ -28,9 +28,6 @@
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typedef struct auth_domain svc_client;
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typedef struct svc_export svc_export;
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static void exp_do_unexport(svc_export *unexp);
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static int exp_verify_string(char *cp, int max);
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/*
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* We have two caches.
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* One maps client+vfsmnt+dentry to export options - the export map
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@ -802,6 +799,7 @@ exp_find_key(svc_client *clp, int fsid_type, u32 *fsidv, struct cache_req *reqp)
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return ek;
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}
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#ifdef CONFIG_NFSD_DEPRECATED
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static int exp_set_key(svc_client *clp, int fsid_type, u32 *fsidv,
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struct svc_export *exp)
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{
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@ -852,6 +850,7 @@ exp_get_fsid_key(svc_client *clp, int fsid)
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return exp_find_key(clp, FSID_NUM, fsidv, NULL);
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}
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#endif
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static svc_export *exp_get_by_name(svc_client *clp, const struct path *path,
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struct cache_req *reqp)
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@ -893,6 +892,7 @@ static struct svc_export *exp_parent(svc_client *clp, struct path *path)
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return exp;
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}
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#ifdef CONFIG_NFSD_DEPRECATED
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/*
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* Hashtable locking. Write locks are placed only by user processes
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* wanting to modify export information.
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@ -925,6 +925,19 @@ exp_writeunlock(void)
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{
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up_write(&hash_sem);
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}
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#else
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/* hash_sem not needed once deprecated interface is removed */
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void exp_readlock(void) {}
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static inline void exp_writelock(void){}
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void exp_readunlock(void) {}
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static inline void exp_writeunlock(void){}
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#endif
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#ifdef CONFIG_NFSD_DEPRECATED
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static void exp_do_unexport(svc_export *unexp);
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static int exp_verify_string(char *cp, int max);
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static void exp_fsid_unhash(struct svc_export *exp)
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{
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@ -1147,6 +1160,7 @@ out_unlock:
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exp_writeunlock();
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return err;
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}
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#endif /* CONFIG_NFSD_DEPRECATED */
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/*
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* Obtain the root fh on behalf of a client.
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@ -1529,6 +1543,7 @@ const struct seq_operations nfs_exports_op = {
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.show = e_show,
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};
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#ifdef CONFIG_NFSD_DEPRECATED
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/*
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* Add or modify a client.
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* Change requests may involve the list of host addresses. The list of
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@ -1618,6 +1633,7 @@ exp_verify_string(char *cp, int max)
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printk(KERN_NOTICE "nfsd: couldn't validate string %s\n", cp);
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return 0;
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}
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#endif /* CONFIG_NFSD_DEPRECATED */
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/*
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* Initialize the exports module.
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@ -22,6 +22,7 @@
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*/
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enum {
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NFSD_Root = 1,
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#ifdef CONFIG_NFSD_DEPRECATED
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NFSD_Svc,
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NFSD_Add,
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NFSD_Del,
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@ -29,6 +30,7 @@ enum {
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NFSD_Unexport,
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NFSD_Getfd,
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NFSD_Getfs,
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#endif
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NFSD_List,
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NFSD_Export_features,
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NFSD_Fh,
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@ -54,6 +56,7 @@ enum {
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/*
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* write() for these nodes.
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*/
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#ifdef CONFIG_NFSD_DEPRECATED
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static ssize_t write_svc(struct file *file, char *buf, size_t size);
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static ssize_t write_add(struct file *file, char *buf, size_t size);
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static ssize_t write_del(struct file *file, char *buf, size_t size);
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@ -61,6 +64,7 @@ static ssize_t write_export(struct file *file, char *buf, size_t size);
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static ssize_t write_unexport(struct file *file, char *buf, size_t size);
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static ssize_t write_getfd(struct file *file, char *buf, size_t size);
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static ssize_t write_getfs(struct file *file, char *buf, size_t size);
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#endif
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static ssize_t write_filehandle(struct file *file, char *buf, size_t size);
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static ssize_t write_unlock_ip(struct file *file, char *buf, size_t size);
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static ssize_t write_unlock_fs(struct file *file, char *buf, size_t size);
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@ -76,6 +80,7 @@ static ssize_t write_recoverydir(struct file *file, char *buf, size_t size);
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#endif
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static ssize_t (*write_op[])(struct file *, char *, size_t) = {
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#ifdef CONFIG_NFSD_DEPRECATED
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[NFSD_Svc] = write_svc,
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[NFSD_Add] = write_add,
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[NFSD_Del] = write_del,
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@ -83,6 +88,7 @@ static ssize_t (*write_op[])(struct file *, char *, size_t) = {
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[NFSD_Unexport] = write_unexport,
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[NFSD_Getfd] = write_getfd,
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[NFSD_Getfs] = write_getfs,
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#endif
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[NFSD_Fh] = write_filehandle,
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[NFSD_FO_UnlockIP] = write_unlock_ip,
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[NFSD_FO_UnlockFS] = write_unlock_fs,
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@ -196,6 +202,7 @@ static const struct file_operations pool_stats_operations = {
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* payload - write methods
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*/
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#ifdef CONFIG_NFSD_DEPRECATED
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/**
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* write_svc - Start kernel's NFSD server
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*
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@ -491,6 +498,7 @@ static ssize_t write_getfd(struct file *file, char *buf, size_t size)
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out:
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return err;
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}
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#endif /* CONFIG_NFSD_DEPRECATED */
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/**
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* write_unlock_ip - Release all locks used by a client
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@ -1365,6 +1373,7 @@ static ssize_t write_recoverydir(struct file *file, char *buf, size_t size)
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static int nfsd_fill_super(struct super_block * sb, void * data, int silent)
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{
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static struct tree_descr nfsd_files[] = {
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#ifdef CONFIG_NFSD_DEPRECATED
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[NFSD_Svc] = {".svc", &transaction_ops, S_IWUSR},
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[NFSD_Add] = {".add", &transaction_ops, S_IWUSR},
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[NFSD_Del] = {".del", &transaction_ops, S_IWUSR},
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@ -1372,6 +1381,7 @@ static int nfsd_fill_super(struct super_block * sb, void * data, int silent)
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[NFSD_Unexport] = {".unexport", &transaction_ops, S_IWUSR},
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[NFSD_Getfd] = {".getfd", &transaction_ops, S_IWUSR|S_IRUSR},
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[NFSD_Getfs] = {".getfs", &transaction_ops, S_IWUSR|S_IRUSR},
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#endif
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[NFSD_List] = {"exports", &exports_operations, S_IRUGO},
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[NFSD_Export_features] = {"export_features",
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&export_features_operations, S_IRUGO},
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