diff options
Diffstat (limited to 'linux-drd/0005-fs-Don-t-return-0-from-get_anon_bdev.patch')
| -rw-r--r-- | linux-drd/0005-fs-Don-t-return-0-from-get_anon_bdev.patch | 44 |
1 files changed, 44 insertions, 0 deletions
diff --git a/linux-drd/0005-fs-Don-t-return-0-from-get_anon_bdev.patch b/linux-drd/0005-fs-Don-t-return-0-from-get_anon_bdev.patch new file mode 100644 index 0000000..2af7cff --- /dev/null +++ b/linux-drd/0005-fs-Don-t-return-0-from-get_anon_bdev.patch @@ -0,0 +1,44 @@ +From 0de4ffcad031c1d0b8422ebcceb9caa80995a73e Mon Sep 17 00:00:00 2001 +From: =?UTF-8?q?Thomas=20B=C3=A4chler?= <thomas@archlinux.org> +Date: Thu, 3 Apr 2014 21:55:37 +0200 +Subject: [PATCH 5/6] fs: Don't return 0 from get_anon_bdev +MIME-Version: 1.0 +Content-Type: text/plain; charset=UTF-8 +Content-Transfer-Encoding: 8bit + +Commit 9e30cc9595303b27b48 removed an internal mount. This +has the side-effect that rootfs now has FSID 0. Many +userspace utilities assume that st_dev in struct stat +is never 0, so this change breaks a number of tools in +early userspace. + +Since we don't know how many userspace programs are affected, +make sure that FSID is at least 1. + +References: http://article.gmane.org/gmane.linux.kernel/1666905 +References: http://permalink.gmane.org/gmane.linux.utilities.util-linux-ng/8557 +Cc: 3.14 <stable@vger.kernel.org> +Signed-off-by: Thomas Bächler <thomas@archlinux.org> +--- + fs/super.c | 5 ++++- + 1 file changed, 4 insertions(+), 1 deletion(-) + +diff --git a/fs/super.c b/fs/super.c +index 80d5cf2..7624267 100644 +--- a/fs/super.c ++++ b/fs/super.c +@@ -802,7 +802,10 @@ void emergency_remount(void) + + static DEFINE_IDA(unnamed_dev_ida); + static DEFINE_SPINLOCK(unnamed_dev_lock);/* protects the above */ +-static int unnamed_dev_start = 0; /* don't bother trying below it */ ++/* Many userspace utilities consider an FSID of 0 invalid. ++ * Always return at least 1 from get_anon_bdev. ++ */ ++static int unnamed_dev_start = 1; + + int get_anon_bdev(dev_t *p) + { +-- +1.9.1 + |