diff options
| author | Seth Forshee <seth.forshee@canonical.com> | 2021-02-09 13:42:17 -0800 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2021-02-09 17:26:44 -0800 |
| commit | ad69c389ec110ea54f8b0c0884b255340ef1c736 (patch) | |
| tree | 1db493abac355579651b8f0b701467b4e42e8895 | |
| parent | b85a7a8bb5736998b8a681937a9749b350c17988 (diff) | |
| download | dm-user-ad69c389ec110ea54f8b0c0884b255340ef1c736.tar.gz | |
tmpfs: disallow CONFIG_TMPFS_INODE64 on alpha
As with s390, alpha is a 64-bit architecture with a 32-bit ino_t. With
CONFIG_TMPFS_INODE64=y tmpfs mounts will get 64-bit inode numbers and
display "inode64" in the mount options, whereas passing "inode64" in the
mount options will fail. This leads to erroneous behaviours such as
this:
# mkdir mnt
# mount -t tmpfs nodev mnt
# mount -o remount,rw mnt
mount: /home/ubuntu/mnt: mount point not mounted or bad option.
Prevent CONFIG_TMPFS_INODE64 from being selected on alpha.
Link: https://lkml.kernel.org/r/20210208215726.608197-1-seth.forshee@canonical.com
Fixes: ea3271f7196c ("tmpfs: support 64-bit inums per-sb")
Signed-off-by: Seth Forshee <seth.forshee@canonical.com>
Acked-by: Hugh Dickins <hughd@google.com>
Cc: Chris Down <chris@chrisdown.name>
Cc: Amir Goldstein <amir73il@gmail.com>
Cc: Richard Henderson <rth@twiddle.net>
Cc: Ivan Kokshaysky <ink@jurassic.park.msu.ru>
Cc: Matt Turner <mattst88@gmail.com>
Cc: <stable@vger.kernel.org> [5.9+]
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
| -rw-r--r-- | fs/Kconfig | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/fs/Kconfig b/fs/Kconfig index 3347ec7bd83782..da524c4d7b7e03 100644 --- a/fs/Kconfig +++ b/fs/Kconfig @@ -203,7 +203,7 @@ config TMPFS_XATTR config TMPFS_INODE64 bool "Use 64-bit ino_t by default in tmpfs" - depends on TMPFS && 64BIT && !S390 + depends on TMPFS && 64BIT && !(S390 || ALPHA) default n help tmpfs has historically used only inode numbers as wide as an unsigned |