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authorHeiko Carstens <hca@linux.ibm.com>2021-02-10 23:51:02 +0300
committerVasily Gorbik <gor@linux.ibm.com>2021-02-13 19:17:53 +0300
commit96c0a6a72d181a330db6dc9848ff2e6584b1aa5b (patch)
treea07fb7a168db5b28c239c84822e818cee1655bc1 /arch/alpha
parentefa54735905c03bf876b4451cfaef6b45046bc53 (diff)
downloadlinux-96c0a6a72d181a330db6dc9848ff2e6584b1aa5b.tar.xz
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 <torvalds@linux-foundation.org> Signed-off-by: Heiko Carstens <hca@linux.ibm.com> Signed-off-by: Vasily Gorbik <gor@linux.ibm.com>
Diffstat (limited to 'arch/alpha')
-rw-r--r--arch/alpha/Kconfig1
1 files changed, 1 insertions, 0 deletions
diff --git a/arch/alpha/Kconfig b/arch/alpha/Kconfig
index 1f51437d5765..96ce6565890e 100644
--- a/arch/alpha/Kconfig
+++ b/arch/alpha/Kconfig
@@ -2,6 +2,7 @@
config ALPHA
bool
default y
+ select ARCH_32BIT_USTAT_F_TINODE
select ARCH_MIGHT_HAVE_PC_PARPORT
select ARCH_MIGHT_HAVE_PC_SERIO
select ARCH_NO_PREEMPT