summaryrefslogtreecommitdiff
diff options
context:
space:
mode:
authorEric W. Biederman <ebiederm@xmission.com>2010-12-05 15:51:21 -0800
committerGreg Kroah-Hartman <gregkh@suse.de>2010-12-09 13:33:22 -0800
commitf6b88b337b0683af589232fc7e19a7f323d57c57 (patch)
tree94fa2edecc02558ed208f11aea7137284ed1a54a
parent1996cc36673bdc5e7295ca6ff46fcb9dfb48be77 (diff)
downloadlwn-f6b88b337b0683af589232fc7e19a7f323d57c57.tar.gz
lwn-f6b88b337b0683af589232fc7e19a7f323d57c57.zip
Revert "vfs: show unreachable paths in getcwd and proc"
commit 7b2a69ba7055da9a04eb96aa7b38c8e3280aaaa5 upstream. Because it caused a chroot ttyname regression in 2.6.36. As of 2.6.36 ttyname does not work in a chroot. It has already been reported that screen breaks, and for me this breaks an automated distribution testsuite, that I need to preserve the ability to run the existing binaries on for several more years. glibc 2.11.3 which has a fix for this is not an option. The root cause of this breakage is: commit 8df9d1a4142311c084ffeeacb67cd34d190eff74 Author: Miklos Szeredi <mszeredi@suse.cz> Date: Tue Aug 10 11:41:41 2010 +0200 vfs: show unreachable paths in getcwd and proc Prepend "(unreachable)" to path strings if the path is not reachable from the current root. Two places updated are - the return string from getcwd() - and symlinks under /proc/$PID. Other uses of d_path() are left unchanged (we know that some old software crashes if /proc/mounts is changed). Signed-off-by: Miklos Szeredi <mszeredi@suse.cz> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> So remove the nice sounding, but ultimately ill advised change to how /proc/fd symlinks work. Signed-off-by: "Eric W. Biederman" <ebiederm@xmission.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
-rw-r--r--fs/proc/base.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/fs/proc/base.c b/fs/proc/base.c
index 8e4addaa5424..632b9071ad2e 100644
--- a/fs/proc/base.c
+++ b/fs/proc/base.c
@@ -1526,7 +1526,7 @@ static int do_proc_readlink(struct path *path, char __user *buffer, int buflen)
if (!tmp)
return -ENOMEM;
- pathname = d_path_with_unreachable(path, tmp, PAGE_SIZE);
+ pathname = d_path(path, tmp, PAGE_SIZE);
len = PTR_ERR(pathname);
if (IS_ERR(pathname))
goto out;