diff options
Diffstat (limited to 'fs/proc_namespace.c')
| -rw-r--r-- | fs/proc_namespace.c | 16 |
1 files changed, 12 insertions, 4 deletions
diff --git a/fs/proc_namespace.c b/fs/proc_namespace.c index 73ca1740d839..0f96f71ab32b 100644 --- a/fs/proc_namespace.c +++ b/fs/proc_namespace.c @@ -91,6 +91,7 @@ static void show_type(struct seq_file *m, struct super_block *sb) static int show_vfsmnt(struct seq_file *m, struct vfsmount *mnt) { + struct proc_mounts *p = proc_mounts(m); struct mount *r = real_mount(mnt); int err = 0; struct path mnt_path = { .dentry = mnt->mnt_root, .mnt = mnt }; @@ -104,7 +105,10 @@ static int show_vfsmnt(struct seq_file *m, struct vfsmount *mnt) mangle(m, r->mnt_devname ? r->mnt_devname : "none"); } seq_putc(m, ' '); - seq_path(m, &mnt_path, " \t\n\\"); + /* mountpoints outside of chroot jail will give SEQ_SKIP on this */ + err = seq_path_root(m, &mnt_path, &p->root, " \t\n\\"); + if (err) + goto out; seq_putc(m, ' '); show_type(m, sb); seq_puts(m, __mnt_is_readonly(mnt) ? " ro" : " rw"); @@ -125,7 +129,6 @@ static int show_mountinfo(struct seq_file *m, struct vfsmount *mnt) struct mount *r = real_mount(mnt); struct super_block *sb = mnt->mnt_sb; struct path mnt_path = { .dentry = mnt->mnt_root, .mnt = mnt }; - struct path root = p->root; int err = 0; seq_printf(m, "%i %i %u:%u ", r->mnt_id, r->mnt_parent->mnt_id, @@ -139,7 +142,7 @@ static int show_mountinfo(struct seq_file *m, struct vfsmount *mnt) seq_putc(m, ' '); /* mountpoints outside of chroot jail will give SEQ_SKIP on this */ - err = seq_path_root(m, &mnt_path, &root, " \t\n\\"); + err = seq_path_root(m, &mnt_path, &p->root, " \t\n\\"); if (err) goto out; @@ -182,6 +185,7 @@ out: static int show_vfsstat(struct seq_file *m, struct vfsmount *mnt) { + struct proc_mounts *p = proc_mounts(m); struct mount *r = real_mount(mnt); struct path mnt_path = { .dentry = mnt->mnt_root, .mnt = mnt }; struct super_block *sb = mnt_path.dentry->d_sb; @@ -201,7 +205,10 @@ static int show_vfsstat(struct seq_file *m, struct vfsmount *mnt) /* mount point */ seq_puts(m, " mounted on "); - seq_path(m, &mnt_path, " \t\n\\"); + /* mountpoints outside of chroot jail will give SEQ_SKIP on this */ + err = seq_path_root(m, &mnt_path, &p->root, " \t\n\\"); + if (err) + goto out; seq_putc(m, ' '); /* file system type */ @@ -216,6 +223,7 @@ static int show_vfsstat(struct seq_file *m, struct vfsmount *mnt) } seq_putc(m, '\n'); +out: return err; } |