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authorDominik Brodowski <linux@dominikbrodowski.net>2018-03-20 19:39:44 +0100
committerDominik Brodowski <linux@dominikbrodowski.net>2018-04-02 20:15:44 +0200
commitab641afa73fbcdee962c4ec9641dd561fdae9944 (patch)
treed593ce59cbbc3acf035116b9f1f29b7208176e1b /fs/utimes.c
parent570484bfe813fa67da003077898a7046767cb4d1 (diff)
fs: add do_compat_futimesat() helper; remove in-kernel call to compat syscall
Using the fs-internal do_compat_futimesat() helper allows us to get rid of the fs-internal call to the compat_sys_futimesat() syscall. 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/utimes.c')
-rw-r--r--fs/utimes.c12
1 files changed, 10 insertions, 2 deletions
diff --git a/fs/utimes.c b/fs/utimes.c
index 5be035ed26c0..69d4b6ba1bfb 100644
--- a/fs/utimes.c
+++ b/fs/utimes.c
@@ -260,7 +260,8 @@ COMPAT_SYSCALL_DEFINE4(utimensat, unsigned int, dfd, const char __user *, filena
return do_utimes(dfd, filename, t ? tv : NULL, flags);
}
-COMPAT_SYSCALL_DEFINE3(futimesat, unsigned int, dfd, const char __user *, filename, struct compat_timeval __user *, t)
+static long do_compat_futimesat(unsigned int dfd, const char __user *filename,
+ struct compat_timeval __user *t)
{
struct timespec64 tv[2];
@@ -279,8 +280,15 @@ COMPAT_SYSCALL_DEFINE3(futimesat, unsigned int, dfd, const char __user *, filena
return do_utimes(dfd, filename, t ? tv : NULL, 0);
}
+COMPAT_SYSCALL_DEFINE3(futimesat, unsigned int, dfd,
+ const char __user *, filename,
+ struct compat_timeval __user *, t)
+{
+ return do_compat_futimesat(dfd, filename, t);
+}
+
COMPAT_SYSCALL_DEFINE2(utimes, const char __user *, filename, struct compat_timeval __user *, t)
{
- return compat_sys_futimesat(AT_FDCWD, filename, t);
+ return do_compat_futimesat(AT_FDCWD, filename, t);
}
#endif