From 96c0a6a72d181a330db6dc9848ff2e6584b1aa5b Mon Sep 17 00:00:00 2001 From: Heiko Carstens Date: Wed, 10 Feb 2021 21:51:02 +0100 Subject: s390,alpha: switch to 64-bit ino_t s390 and alpha are the only 64 bit architectures with a 32-bit ino_t. Since this is quite unusual this causes bugs from time to time. See e.g. commit ebce3eb2f7ef ("ceph: fix inode number handling on arches with 32-bit ino_t") for an example. This (obviously) also prevents s390 and alpha to use 64-bit ino_t for tmpfs. See commit b85a7a8bb573 ("tmpfs: disallow CONFIG_TMPFS_INODE64 on s390"). Therefore switch both s390 and alpha to 64-bit ino_t. This should only have an effect on the ustat system call. To prevent ABI breakage define struct ustat compatible to the old layout and change sys_ustat() accordingly. Acked-by: Linus Torvalds Signed-off-by: Heiko Carstens Signed-off-by: Vasily Gorbik --- arch/Kconfig | 4 ++++ 1 file changed, 4 insertions(+) (limited to 'arch/Kconfig') diff --git a/arch/Kconfig b/arch/Kconfig index 24862d15f3a3..383c98e86a70 100644 --- a/arch/Kconfig +++ b/arch/Kconfig @@ -327,6 +327,10 @@ config ARCH_32BIT_OFF_T still support 32-bit off_t. This option is enabled for all such architectures explicitly. +# Selected by 64 bit architectures which have a 32 bit f_tinode in struct ustat +config ARCH_32BIT_USTAT_F_TINODE + bool + config HAVE_ASM_MODVERSIONS bool help -- cgit v1.2.3