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authorDominik Brodowski <linux@dominikbrodowski.net>2018-03-19 19:32:11 +0300
committerDominik Brodowski <linux@dominikbrodowski.net>2018-04-02 21:16:08 +0300
commitdf260e21e6cd5d2dfc1fe9b6a3bbf747e72b3bed (patch)
tree8731b85570ffef662667b01e33769f9d9d2c2baa /fs/open.c
parent806cbae1228cc1a19b978c4513f6851e9ab7f388 (diff)
downloadlinux-df260e21e6cd5d2dfc1fe9b6a3bbf747e72b3bed.tar.xz
fs: add ksys_truncate() wrapper; remove in-kernel calls to sys_truncate()
Using the ksys_truncate() wrapper allows us to get rid of in-kernel calls to the sys_truncate() syscall. The ksys_ prefix denotes that this function is meant as a drop-in replacement for the syscall. In particular, it uses the same calling convention as sys_truncate(). This patch is part of a series which removes in-kernel calls to syscalls. On this basis, the syscall entry path can be streamlined. For details, see http://lkml.kernel.org/r/20180325162527.GA17492@light.dominikbrodowski.net Cc: Al Viro <viro@zeniv.linux.org.uk> Cc: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Dominik Brodowski <linux@dominikbrodowski.net>
Diffstat (limited to 'fs/open.c')
-rw-r--r--fs/open.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/fs/open.c b/fs/open.c
index 8a42a2961130..2e816fc7bd56 100644
--- a/fs/open.c
+++ b/fs/open.c
@@ -128,7 +128,7 @@ out:
}
EXPORT_SYMBOL_GPL(vfs_truncate);
-static long do_sys_truncate(const char __user *pathname, loff_t length)
+long do_sys_truncate(const char __user *pathname, loff_t length)
{
unsigned int lookup_flags = LOOKUP_FOLLOW;
struct path path;