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| author | Dominik Brodowski <linux@dominikbrodowski.net> | 2018-03-11 13:34:46 +0300 |
|---|---|---|
| committer | Dominik Brodowski <linux@dominikbrodowski.net> | 2018-04-02 21:15:51 +0300 |
| commit | 447016e9681965fda8dcd9e4fd3c55308a6fd166 (patch) | |
| tree | 02db8c01fa405f0f16ba09bbee415cdf15e30b14 /include/linux/syscalls.h | |
| parent | e7a3e8b2edf544ec28f689385c3adc2903f46ec0 (diff) | |
| download | linux-447016e9681965fda8dcd9e4fd3c55308a6fd166.tar.xz | |
fs: add ksys_chdir() helper; remove in-kernel calls to sys_chdir()
Using this helper allows us to avoid the in-kernel calls to the sys_chdir()
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_chdir().
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 'include/linux/syscalls.h')
| -rw-r--r-- | include/linux/syscalls.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/include/linux/syscalls.h b/include/linux/syscalls.h index 80524faa9664..090645b48447 100644 --- a/include/linux/syscalls.h +++ b/include/linux/syscalls.h @@ -952,5 +952,6 @@ int ksys_umount(char __user *name, int flags); int ksys_dup(unsigned int fildes); int ksys_chroot(const char __user *filename); ssize_t ksys_write(unsigned int fd, const char __user *buf, size_t count); +int ksys_chdir(const char __user *filename); #endif |