From: Seth Forshee seth.forshee@canonical.com
commit ad69c389ec110ea54f8b0c0884b255340ef1c736 upstream.
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 Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- fs/Kconfig | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
--- 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