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Diffstat (limited to 'fs/nfs/nfs4super.c')
-rw-r--r--fs/nfs/nfs4super.c101
1 files changed, 57 insertions, 44 deletions
diff --git a/fs/nfs/nfs4super.c b/fs/nfs/nfs4super.c
index 8a505573c28..6f340f02f2b 100644
--- a/fs/nfs/nfs4super.c
+++ b/fs/nfs/nfs4super.c
@@ -6,12 +6,17 @@
#include <linux/nfs_idmap.h>
#include <linux/nfs4_mount.h>
#include <linux/nfs_fs.h>
+#include "delegation.h"
#include "internal.h"
#include "nfs4_fs.h"
+#include "dns_resolve.h"
+#include "pnfs.h"
#include "nfs.h"
#define NFSDBG_FACILITY NFSDBG_VFS
+static int nfs4_write_inode(struct inode *inode, struct writeback_control *wbc);
+static void nfs4_evict_inode(struct inode *inode);
static struct dentry *nfs4_remote_mount(struct file_system_type *fs_type,
int flags, const char *dev_name, void *raw_data);
static struct dentry *nfs4_referral_mount(struct file_system_type *fs_type,
@@ -19,20 +24,12 @@ static struct dentry *nfs4_referral_mount(struct file_system_type *fs_type,
static struct dentry *nfs4_remote_referral_mount(struct file_system_type *fs_type,
int flags, const char *dev_name, void *raw_data);
-static struct file_system_type nfs4_fs_type = {
- .owner = THIS_MODULE,
- .name = "nfs4",
- .mount = nfs_fs_mount,
- .kill_sb = nfs_kill_super,
- .fs_flags = FS_RENAME_DOES_D_MOVE|FS_REVAL_DOT|FS_BINARY_MOUNTDATA,
-};
-
static struct file_system_type nfs4_remote_fs_type = {
.owner = THIS_MODULE,
.name = "nfs4",
.mount = nfs4_remote_mount,
.kill_sb = nfs_kill_super,
- .fs_flags = FS_RENAME_DOES_D_MOVE|FS_REVAL_DOT|FS_BINARY_MOUNTDATA,
+ .fs_flags = FS_RENAME_DOES_D_MOVE|FS_BINARY_MOUNTDATA,
};
static struct file_system_type nfs4_remote_referral_fs_type = {
@@ -40,7 +37,7 @@ static struct file_system_type nfs4_remote_referral_fs_type = {
.name = "nfs4",
.mount = nfs4_remote_referral_mount,
.kill_sb = nfs_kill_super,
- .fs_flags = FS_RENAME_DOES_D_MOVE|FS_REVAL_DOT|FS_BINARY_MOUNTDATA,
+ .fs_flags = FS_RENAME_DOES_D_MOVE|FS_BINARY_MOUNTDATA,
};
struct file_system_type nfs4_referral_fs_type = {
@@ -48,13 +45,14 @@ struct file_system_type nfs4_referral_fs_type = {
.name = "nfs4",
.mount = nfs4_referral_mount,
.kill_sb = nfs_kill_super,
- .fs_flags = FS_RENAME_DOES_D_MOVE|FS_REVAL_DOT|FS_BINARY_MOUNTDATA,
+ .fs_flags = FS_RENAME_DOES_D_MOVE|FS_BINARY_MOUNTDATA,
};
static const struct super_operations nfs4_sops = {
.alloc_inode = nfs_alloc_inode,
.destroy_inode = nfs_destroy_inode,
.write_inode = nfs4_write_inode,
+ .drop_inode = nfs_drop_inode,
.put_super = nfs_put_super,
.statfs = nfs_statfs,
.evict_inode = nfs4_evict_inode,
@@ -71,23 +69,35 @@ struct nfs_subversion nfs_v4 = {
.nfs_fs = &nfs4_fs_type,
.rpc_vers = &nfs_version4,
.rpc_ops = &nfs_v4_clientops,
+ .sops = &nfs4_sops,
+ .xattr = nfs4_xattr_handlers,
};
+static int nfs4_write_inode(struct inode *inode, struct writeback_control *wbc)
+{
+ int ret = nfs_write_inode(inode, wbc);
+
+ if (ret == 0)
+ ret = pnfs_layoutcommit_inode(inode,
+ wbc->sync_mode == WB_SYNC_ALL);
+ return ret;
+}
+
/*
- * Set up an NFS4 superblock
+ * Clean out any remaining NFSv4 state that might be left over due
+ * to open() calls that passed nfs_atomic_lookup, but failed to call
+ * nfs_open().
*/
-static void nfs4_fill_super(struct super_block *sb,
- struct nfs_mount_info *mount_info)
+static void nfs4_evict_inode(struct inode *inode)
{
- sb->s_time_gran = 1;
- sb->s_op = &nfs4_sops;
- /*
- * The VFS shouldn't apply the umask to mode bits. We will do
- * so ourselves when necessary.
- */
- sb->s_flags |= MS_POSIXACL;
- sb->s_xattr = nfs4_xattr_handlers;
- nfs_initialise_sb(sb);
+ truncate_inode_pages_final(&inode->i_data);
+ clear_inode(inode);
+ pnfs_return_layout(inode);
+ pnfs_destroy_layout(NFS_I(inode));
+ /* If we are holding a delegation, return it! */
+ nfs_inode_return_delegation_noreclaim(inode);
+ /* First call standard NFS clear_inode() code */
+ nfs_clear_inode(inode);
}
/*
@@ -101,11 +111,10 @@ nfs4_remote_mount(struct file_system_type *fs_type, int flags,
struct nfs_server *server;
struct dentry *mntroot = ERR_PTR(-ENOMEM);
- mount_info->fill_super = nfs4_fill_super;
mount_info->set_security = nfs_set_sb_security;
/* Get a volume representation */
- server = nfs4_create_server(mount_info->parsed, mount_info->mntfh);
+ server = nfs4_create_server(mount_info, &nfs_v4);
if (IS_ERR(server)) {
mntroot = ERR_CAST(server);
goto out;
@@ -226,7 +235,8 @@ static struct dentry *nfs_follow_remote_path(struct vfsmount *root_mnt,
}
struct dentry *nfs4_try_mount(int flags, const char *dev_name,
- struct nfs_mount_info *mount_info)
+ struct nfs_mount_info *mount_info,
+ struct nfs_subversion *nfs_mod)
{
char *export_path;
struct vfsmount *root_mnt;
@@ -235,8 +245,6 @@ struct dentry *nfs4_try_mount(int flags, const char *dev_name,
dfprintk(MOUNT, "--> nfs4_try_mount()\n");
- mount_info->fill_super = nfs4_fill_super;
-
export_path = data->nfs_server.export_path;
data->nfs_server.export_path = "/";
root_mnt = nfs_do_root_mount(&nfs4_remote_fs_type, flags, mount_info,
@@ -245,9 +253,9 @@ struct dentry *nfs4_try_mount(int flags, const char *dev_name,
res = nfs_follow_remote_path(root_mnt, export_path);
- dfprintk(MOUNT, "<-- nfs4_try_mount() = %ld%s\n",
- IS_ERR(res) ? PTR_ERR(res) : 0,
- IS_ERR(res) ? " [error]" : "");
+ dfprintk(MOUNT, "<-- nfs4_try_mount() = %d%s\n",
+ PTR_ERR_OR_ZERO(res),
+ IS_ERR(res) ? " [error]" : "");
return res;
}
@@ -256,7 +264,7 @@ nfs4_remote_referral_mount(struct file_system_type *fs_type, int flags,
const char *dev_name, void *raw_data)
{
struct nfs_mount_info mount_info = {
- .fill_super = nfs4_fill_super,
+ .fill_super = nfs_fill_super,
.set_security = nfs_clone_sb_security,
.cloned = raw_data,
};
@@ -303,43 +311,48 @@ static struct dentry *nfs4_referral_mount(struct file_system_type *fs_type,
data->mnt_path = export_path;
res = nfs_follow_remote_path(root_mnt, export_path);
- dprintk("<-- nfs4_referral_mount() = %ld%s\n",
- IS_ERR(res) ? PTR_ERR(res) : 0,
- IS_ERR(res) ? " [error]" : "");
+ dprintk("<-- nfs4_referral_mount() = %d%s\n",
+ PTR_ERR_OR_ZERO(res),
+ IS_ERR(res) ? " [error]" : "");
return res;
}
-int __init init_nfs_v4(void)
+static int __init init_nfs_v4(void)
{
int err;
- err = nfs_idmap_init();
+ err = nfs_dns_resolver_init();
if (err)
goto out;
- err = nfs4_register_sysctl();
+ err = nfs_idmap_init();
if (err)
goto out1;
- err = register_filesystem(&nfs4_fs_type);
- if (err < 0)
+ err = nfs4_register_sysctl();
+ if (err)
goto out2;
register_nfs_version(&nfs_v4);
return 0;
out2:
- nfs4_unregister_sysctl();
-out1:
nfs_idmap_quit();
+out1:
+ nfs_dns_resolver_destroy();
out:
return err;
}
-void exit_nfs_v4(void)
+static void __exit exit_nfs_v4(void)
{
unregister_nfs_version(&nfs_v4);
- unregister_filesystem(&nfs4_fs_type);
nfs4_unregister_sysctl();
nfs_idmap_quit();
+ nfs_dns_resolver_destroy();
}
+
+MODULE_LICENSE("GPL");
+
+module_init(init_nfs_v4);
+module_exit(exit_nfs_v4);
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2025-11-10 13:08:30 +0000