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Diffstat (limited to 'arch/s390/hypfs/inode.c')
-rw-r--r--arch/s390/hypfs/inode.c61
1 files changed, 32 insertions, 29 deletions
diff --git a/arch/s390/hypfs/inode.c b/arch/s390/hypfs/inode.c
index 06ea69bd387..c952b981e4f 100644
--- a/arch/s390/hypfs/inode.c
+++ b/arch/s390/hypfs/inode.c
@@ -21,14 +21,14 @@
#include <linux/module.h>
#include <linux/seq_file.h>
#include <linux/mount.h>
+#include <linux/aio.h>
#include <asm/ebcdic.h>
#include "hypfs.h"
#define HYPFS_MAGIC 0x687970 /* ASCII 'hyp' */
#define TMP_SIZE 64 /* size of temporary buffers */
-static struct dentry *hypfs_create_update_file(struct super_block *sb,
- struct dentry *dir);
+static struct dentry *hypfs_create_update_file(struct dentry *dir);
struct hypfs_sb_info {
kuid_t uid; /* uid used for files and dirs */
@@ -119,7 +119,7 @@ static void hypfs_evict_inode(struct inode *inode)
static int hypfs_open(struct inode *inode, struct file *filp)
{
- char *data = filp->f_path.dentry->d_inode->i_private;
+ char *data = file_inode(filp)->i_private;
struct hypfs_sb_info *fs_info;
if (filp->f_mode & FMODE_WRITE) {
@@ -171,12 +171,10 @@ static ssize_t hypfs_aio_write(struct kiocb *iocb, const struct iovec *iov,
unsigned long nr_segs, loff_t offset)
{
int rc;
- struct super_block *sb;
- struct hypfs_sb_info *fs_info;
+ struct super_block *sb = file_inode(iocb->ki_filp)->i_sb;
+ struct hypfs_sb_info *fs_info = sb->s_fs_info;
size_t count = iov_length(iov, nr_segs);
- sb = iocb->ki_filp->f_path.dentry->d_inode->i_sb;
- fs_info = sb->s_fs_info;
/*
* Currently we only allow one update per second for two reasons:
* 1. diag 204 is VERY expensive
@@ -194,9 +192,9 @@ static ssize_t hypfs_aio_write(struct kiocb *iocb, const struct iovec *iov,
}
hypfs_delete_tree(sb->s_root);
if (MACHINE_IS_VM)
- rc = hypfs_vm_create_files(sb, sb->s_root);
+ rc = hypfs_vm_create_files(sb->s_root);
else
- rc = hypfs_diag_create_files(sb, sb->s_root);
+ rc = hypfs_diag_create_files(sb->s_root);
if (rc) {
pr_err("Updating the hypfs tree failed\n");
hypfs_delete_tree(sb->s_root);
@@ -303,12 +301,12 @@ static int hypfs_fill_super(struct super_block *sb, void *data, int silent)
if (!root_dentry)
return -ENOMEM;
if (MACHINE_IS_VM)
- rc = hypfs_vm_create_files(sb, root_dentry);
+ rc = hypfs_vm_create_files(root_dentry);
else
- rc = hypfs_diag_create_files(sb, root_dentry);
+ rc = hypfs_diag_create_files(root_dentry);
if (rc)
return rc;
- sbi->update_file = hypfs_create_update_file(sb, root_dentry);
+ sbi->update_file = hypfs_create_update_file(root_dentry);
if (IS_ERR(sbi->update_file))
return PTR_ERR(sbi->update_file);
hypfs_update_update(sb);
@@ -335,8 +333,7 @@ static void hypfs_kill_super(struct super_block *sb)
kill_litter_super(sb);
}
-static struct dentry *hypfs_create_file(struct super_block *sb,
- struct dentry *parent, const char *name,
+static struct dentry *hypfs_create_file(struct dentry *parent, const char *name,
char *data, umode_t mode)
{
struct dentry *dentry;
@@ -348,7 +345,7 @@ static struct dentry *hypfs_create_file(struct super_block *sb,
dentry = ERR_PTR(-ENOMEM);
goto fail;
}
- inode = hypfs_make_inode(sb, mode);
+ inode = hypfs_make_inode(parent->d_sb, mode);
if (!inode) {
dput(dentry);
dentry = ERR_PTR(-ENOMEM);
@@ -374,24 +371,22 @@ fail:
return dentry;
}
-struct dentry *hypfs_mkdir(struct super_block *sb, struct dentry *parent,
- const char *name)
+struct dentry *hypfs_mkdir(struct dentry *parent, const char *name)
{
struct dentry *dentry;
- dentry = hypfs_create_file(sb, parent, name, NULL, S_IFDIR | DIR_MODE);
+ dentry = hypfs_create_file(parent, name, NULL, S_IFDIR | DIR_MODE);
if (IS_ERR(dentry))
return dentry;
hypfs_add_dentry(dentry);
return dentry;
}
-static struct dentry *hypfs_create_update_file(struct super_block *sb,
- struct dentry *dir)
+static struct dentry *hypfs_create_update_file(struct dentry *dir)
{
struct dentry *dentry;
- dentry = hypfs_create_file(sb, dir, "update", NULL,
+ dentry = hypfs_create_file(dir, "update", NULL,
S_IFREG | UPDATE_FILE_MODE);
/*
* We do not put the update file on the 'delete' list with
@@ -401,7 +396,7 @@ static struct dentry *hypfs_create_update_file(struct super_block *sb,
return dentry;
}
-struct dentry *hypfs_create_u64(struct super_block *sb, struct dentry *dir,
+struct dentry *hypfs_create_u64(struct dentry *dir,
const char *name, __u64 value)
{
char *buffer;
@@ -413,7 +408,7 @@ struct dentry *hypfs_create_u64(struct super_block *sb, struct dentry *dir,
if (!buffer)
return ERR_PTR(-ENOMEM);
dentry =
- hypfs_create_file(sb, dir, name, buffer, S_IFREG | REG_FILE_MODE);
+ hypfs_create_file(dir, name, buffer, S_IFREG | REG_FILE_MODE);
if (IS_ERR(dentry)) {
kfree(buffer);
return ERR_PTR(-ENOMEM);
@@ -422,7 +417,7 @@ struct dentry *hypfs_create_u64(struct super_block *sb, struct dentry *dir,
return dentry;
}
-struct dentry *hypfs_create_str(struct super_block *sb, struct dentry *dir,
+struct dentry *hypfs_create_str(struct dentry *dir,
const char *name, char *string)
{
char *buffer;
@@ -433,7 +428,7 @@ struct dentry *hypfs_create_str(struct super_block *sb, struct dentry *dir,
return ERR_PTR(-ENOMEM);
sprintf(buffer, "%s\n", string);
dentry =
- hypfs_create_file(sb, dir, name, buffer, S_IFREG | REG_FILE_MODE);
+ hypfs_create_file(dir, name, buffer, S_IFREG | REG_FILE_MODE);
if (IS_ERR(dentry)) {
kfree(buffer);
return ERR_PTR(-ENOMEM);
@@ -458,6 +453,7 @@ static struct file_system_type hypfs_type = {
.mount = hypfs_mount,
.kill_sb = hypfs_kill_super
};
+MODULE_ALIAS_FS("s390_hypfs");
static const struct super_operations hypfs_s_ops = {
.statfs = simple_statfs,
@@ -482,10 +478,14 @@ static int __init hypfs_init(void)
rc = -ENODATA;
goto fail_hypfs_diag_exit;
}
+ if (hypfs_sprp_init()) {
+ rc = -ENODATA;
+ goto fail_hypfs_vm_exit;
+ }
s390_kobj = kobject_create_and_add("s390", hypervisor_kobj);
if (!s390_kobj) {
rc = -ENOMEM;
- goto fail_hypfs_vm_exit;
+ goto fail_hypfs_sprp_exit;
}
rc = register_filesystem(&hypfs_type);
if (rc)
@@ -494,6 +494,8 @@ static int __init hypfs_init(void)
fail_filesystem:
kobject_put(s390_kobj);
+fail_hypfs_sprp_exit:
+ hypfs_sprp_exit();
fail_hypfs_vm_exit:
hypfs_vm_exit();
fail_hypfs_diag_exit:
@@ -506,11 +508,12 @@ fail_dbfs_exit:
static void __exit hypfs_exit(void)
{
- hypfs_diag_exit();
- hypfs_vm_exit();
- hypfs_dbfs_exit();
unregister_filesystem(&hypfs_type);
kobject_put(s390_kobj);
+ hypfs_sprp_exit();
+ hypfs_vm_exit();
+ hypfs_diag_exit();
+ hypfs_dbfs_exit();
}
module_init(hypfs_init)
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2025-11-09 12:17:18 +0000