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OpenCloudOS-Kernel
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vfs: move mnt_devname 

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
This commit is contained in:
Al Viro 2011-11-25 02:25:17 -05:00
parent 1a4eeaf2a8
commit 52ba1621de
3 changed files with 11 additions and 11 deletions
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3
fs/mount.h
View File

@ -19,7 +19,8 @@ struct mount {
#endif
struct list_head mnt_mounts; /* list of children, anchored here */
struct list_head mnt_child; /* and going through their mnt_child */
/* yet to be moved - up to mnt_devname */
/* yet to be moved - fsnotify ones go here */
const char *mnt_devname; /* Name of device e.g. /dev/dsk/hda1 */
struct list_head mnt_list;
struct list_head mnt_expire; /* link in fs-specific expiry list */
struct list_head mnt_share; /* circular list of shared mounts */

18
fs/namespace.c
View File

@ -183,8 +183,8 @@ static struct mount *alloc_vfsmnt(const char *name)
goto out_free_cache;
if (name) {
mnt->mnt_devname = kstrdup(name, GFP_KERNEL);
if (!mnt->mnt_devname)
p->mnt_devname = kstrdup(name, GFP_KERNEL);
if (!p->mnt_devname)
goto out_free_id;
}
@ -215,7 +215,7 @@ static struct mount *alloc_vfsmnt(const char *name)
#ifdef CONFIG_SMP
out_free_devname:
kfree(p->mnt.mnt_devname);
kfree(p->mnt_devname);
#endif
out_free_id:
mnt_free_id(p);
@ -451,7 +451,7 @@ static void __mnt_unmake_readonly(struct mount *mnt)
static void free_vfsmnt(struct mount *mnt)
{
kfree(mnt->mnt.mnt_devname);
kfree(mnt->mnt_devname);
mnt_free_id(mnt);
#ifdef CONFIG_SMP
free_percpu(mnt->mnt_pcp);
@ -692,7 +692,7 @@ static struct mount *clone_mnt(struct mount *old, struct dentry *root,
int flag)
{
struct super_block *sb = old->mnt.mnt_sb;
struct mount *mnt = alloc_vfsmnt(old->mnt.mnt_devname);
struct mount *mnt = alloc_vfsmnt(old->mnt_devname);
if (mnt) {
if (flag & (CL_SLAVE | CL_PRIVATE))
@ -997,7 +997,7 @@ static int show_vfsmnt(struct seq_file *m, void *v)
if (err)
goto out;
} else {
mangle(m, mnt->mnt_devname ? mnt->mnt_devname : "none");
mangle(m, r->mnt_devname ? r->mnt_devname : "none");
}
seq_putc(m, ' ');
seq_path(m, &mnt_path, " \t\n\\");
@ -1070,7 +1070,7 @@ static int show_mountinfo(struct seq_file *m, void *v)
if (sb->s_op->show_devname)
err = sb->s_op->show_devname(m, mnt);
else
mangle(m, mnt->mnt_devname ? mnt->mnt_devname : "none");
mangle(m, r->mnt_devname ? r->mnt_devname : "none");
if (err)
goto out;
seq_puts(m, sb->s_flags & MS_RDONLY ? " ro" : " rw");
@ -1103,9 +1103,9 @@ static int show_vfsstat(struct seq_file *m, void *v)
seq_puts(m, "device ");
err = mnt->mnt_sb->s_op->show_devname(m, mnt);
} else {
if (mnt->mnt_devname) {
if (r->mnt_devname) {
seq_puts(m, "device ");
mangle(m, mnt->mnt_devname);
mangle(m, r->mnt_devname);
} else
seq_puts(m, "no device");
}

1
include/linux/mount.h
View File

@ -56,7 +56,6 @@ struct vfsmount {
__u32 mnt_fsnotify_mask;
struct hlist_head mnt_fsnotify_marks;
#endif
const char *mnt_devname; /* Name of device e.g. /dev/dsk/hda1 */
};
struct file; /* forward dec */