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Subject[PATCH 5.7 208/265] syscalls: Fix offset type of ksys_ftruncate()
From: Jiri Slaby <>

commit 8e742aa79780b13cd300a42198c1a4cea9c89905 upstream.

After the commit below, truncate() on x86 32bit uses ksys_ftruncate(). But
ksys_ftruncate() truncates the offset to unsigned long.

Switch the type of offset to loff_t which is what do_sys_ftruncate()

Fixes: 121b32a58a3a (x86/entry/32: Use IA32-specific wrappers for syscalls taking 64-bit arguments)
Signed-off-by: Jiri Slaby <>
Signed-off-by: Thomas Gleixner <>
Reviewed-by: Brian Gerst <>
Signed-off-by: Greg Kroah-Hartman <>
include/linux/syscalls.h | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/include/linux/syscalls.h b/include/linux/syscalls.h
index 1815065d52f37..1b0c7813197b0 100644
--- a/include/linux/syscalls.h
+++ b/include/linux/syscalls.h
@@ -1358,7 +1358,7 @@ static inline long ksys_lchown(const char __user *filename, uid_t user,

extern long do_sys_ftruncate(unsigned int fd, loff_t length, int small);

-static inline long ksys_ftruncate(unsigned int fd, unsigned long length)
+static inline long ksys_ftruncate(unsigned int fd, loff_t length)
return do_sys_ftruncate(fd, length, 1);
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