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| author | Dominik Brodowski <linux@dominikbrodowski.net> | 2018-03-20 19:39:44 +0100 |
|---|---|---|
| committer | Dominik Brodowski <linux@dominikbrodowski.net> | 2018-04-02 20:15:44 +0200 |
| commit | ab641afa73fbcdee962c4ec9641dd561fdae9944 (patch) | |
| tree | d593ce59cbbc3acf035116b9f1f29b7208176e1b /fs/utimes.c | |
| parent | 570484bfe813fa67da003077898a7046767cb4d1 (diff) | |
| download | linux-ab641afa73fbcdee962c4ec9641dd561fdae9944.tar.gz linux-ab641afa73fbcdee962c4ec9641dd561fdae9944.tar.bz2 linux-ab641afa73fbcdee962c4ec9641dd561fdae9944.zip | |
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.c | 12 |
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 |