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| author | Dominik Brodowski <linux@dominikbrodowski.net> | 2018-03-11 11:34:41 +0100 |
|---|---|---|
| committer | Dominik Brodowski <linux@dominikbrodowski.net> | 2018-04-02 20:15:51 +0200 |
| commit | e7a3e8b2edf544ec28f689385c3adc2903f46ec0 (patch) | |
| tree | f2fa667f8c2a6774aa466ab378a11e4c27cbd066 /arch/s390 | |
| parent | a16fe33ab5572e52ef4cb9719d6eb49623b2528a (diff) | |
| download | linux-e7a3e8b2edf544ec28f689385c3adc2903f46ec0.tar.bz2 | |
fs: add ksys_write() helper; remove in-kernel calls to sys_write()
Using this helper allows us to avoid the in-kernel calls to the sys_write()
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_write().
In the near future, the do_mounts / initramfs callers of ksys_write()
should be converted to use filp_open() and vfs_write() instead.
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: Alexander Viro <viro@zeniv.linux.org.uk>
Cc: linux-s390@vger.kernel.org
Signed-off-by: Dominik Brodowski <linux@dominikbrodowski.net>
Diffstat (limited to 'arch/s390')
| -rw-r--r-- | arch/s390/kernel/compat_linux.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/s390/kernel/compat_linux.c b/arch/s390/kernel/compat_linux.c index 79b7a3438d54..5a9cfde5fc28 100644 --- a/arch/s390/kernel/compat_linux.c +++ b/arch/s390/kernel/compat_linux.c @@ -468,7 +468,7 @@ COMPAT_SYSCALL_DEFINE3(s390_write, unsigned int, fd, const char __user *, buf, c if ((compat_ssize_t) count < 0) return -EINVAL; - return sys_write(fd, buf, count); + return ksys_write(fd, buf, count); } /* |