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vfs: switch ->show_devname() to struct dentry *

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Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
This commit is contained in:
Al Viro 2011-12-08 21:32:45 -05:00
parent 64132379d5
commit d861c630e9
3 changed files with 13 additions and 12 deletions
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6
fs/nfs/super.c
View file

@ -263,7 +263,7 @@ static match_table_t nfs_local_lock_tokens = {
static void nfs_umount_begin(struct super_block *);
static int nfs_statfs(struct dentry *, struct kstatfs *);
static int nfs_show_options(struct seq_file *, struct vfsmount *);
static int nfs_show_devname(struct seq_file *, struct vfsmount *);
static int nfs_show_devname(struct seq_file *, struct dentry *);
static int nfs_show_path(struct seq_file *, struct vfsmount *);
static int nfs_show_stats(struct seq_file *, struct dentry *);
static struct dentry *nfs_fs_mount(struct file_system_type *,
@ -760,14 +760,14 @@ static void show_pnfs(struct seq_file *m, struct nfs_server *server) {}
#endif
#endif
static int nfs_show_devname(struct seq_file *m, struct vfsmount *mnt)
static int nfs_show_devname(struct seq_file *m, struct dentry *root)
{
char *page = (char *) __get_free_page(GFP_KERNEL);
char *devname, *dummy;
int err = 0;
if (!page)
return -ENOMEM;
devname = nfs_path(&dummy, mnt->mnt_root, page, PAGE_SIZE);
devname = nfs_path(&dummy, root, page, PAGE_SIZE);
if (IS_ERR(devname))
err = PTR_ERR(devname);
else

17
fs/proc_namespace.c
View file

@ -94,9 +94,10 @@ static int show_vfsmnt(struct seq_file *m, struct vfsmount *mnt)
struct mount *r = real_mount(mnt);
int err = 0;
struct path mnt_path = { .dentry = mnt->mnt_root, .mnt = mnt };
struct super_block *sb = mnt_path.dentry->d_sb;
if (mnt->mnt_sb->s_op->show_devname) {
err = mnt->mnt_sb->s_op->show_devname(m, mnt);
if (sb->s_op->show_devname) {
err = sb->s_op->show_devname(m, mnt_path.dentry);
if (err)
goto out;
} else {
@ -105,14 +106,14 @@ static int show_vfsmnt(struct seq_file *m, struct vfsmount *mnt)
seq_putc(m, ' ');
seq_path(m, &mnt_path, " \t\n\\");
seq_putc(m, ' ');
show_type(m, mnt->mnt_sb);
show_type(m, sb);
seq_puts(m, __mnt_is_readonly(mnt) ? " ro" : " rw");
err = show_sb_opts(m, mnt->mnt_sb);
err = show_sb_opts(m, sb);
if (err)
goto out;
show_mnt_opts(m, mnt);
if (mnt->mnt_sb->s_op->show_options)
err = mnt->mnt_sb->s_op->show_options(m, mnt);
if (sb->s_op->show_options)
err = sb->s_op->show_options(m, mnt);
seq_puts(m, " 0 0\n");
out:
return err;
@ -163,7 +164,7 @@ static int show_mountinfo(struct seq_file *m, struct vfsmount *mnt)
show_type(m, sb);
seq_putc(m, ' ');
if (sb->s_op->show_devname)
err = sb->s_op->show_devname(m, mnt);
err = sb->s_op->show_devname(m, mnt->mnt_root);
else
mangle(m, r->mnt_devname ? r->mnt_devname : "none");
if (err)
@ -189,7 +190,7 @@ static int show_vfsstat(struct seq_file *m, struct vfsmount *mnt)
/* device */
if (sb->s_op->show_devname) {
seq_puts(m, "device ");
err = sb->s_op->show_devname(m, mnt);
err = sb->s_op->show_devname(m, mnt_path.dentry);
} else {
if (r->mnt_devname) {
seq_puts(m, "device ");

2
include/linux/fs.h
View file

@ -1673,7 +1673,7 @@ struct super_operations {
void (*umount_begin) (struct super_block *);
int (*show_options)(struct seq_file *, struct vfsmount *);
int (*show_devname)(struct seq_file *, struct vfsmount *);
int (*show_devname)(struct seq_file *, struct dentry *);
int (*show_path)(struct seq_file *, struct vfsmount *);
int (*show_stats)(struct seq_file *, struct dentry *);
#ifdef CONFIG_QUOTA