path: root/init/initramfs.c
diff options
authorDominik Brodowski <linux@dominikbrodowski.net>2018-03-11 11:34:41 +0100
committerDominik Brodowski <linux@dominikbrodowski.net>2018-04-02 20:15:51 +0200
commite7a3e8b2edf544ec28f689385c3adc2903f46ec0 (patch)
treef2fa667f8c2a6774aa466ab378a11e4c27cbd066 /init/initramfs.c
parenta16fe33ab5572e52ef4cb9719d6eb49623b2528a (diff)
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 'init/initramfs.c')
1 files changed, 1 insertions, 1 deletions
diff --git a/init/initramfs.c b/init/initramfs.c
index 7e99a0038942..6f972df15bf2 100644
--- a/init/initramfs.c
+++ b/init/initramfs.c
@@ -27,7 +27,7 @@ static ssize_t __init xwrite(int fd, const char *p, size_t count)
/* sys_write only can write MAX_RW_COUNT aka 2G-4K bytes at most */
while (count) {
- ssize_t rv = sys_write(fd, p, count);
+ ssize_t rv = ksys_write(fd, p, count);
if (rv < 0) {
if (rv == -EINTR || rv == -EAGAIN)

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