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authorDominik Brodowski <linux@dominikbrodowski.net>2018-03-11 11:34:55 +0100
committerDominik Brodowski <linux@dominikbrodowski.net>2018-04-02 20:16:00 +0200
commit2ca2a09d6215fd9621aa3e2db7cc9428a61f2911 (patch)
treea1999670bbdba36d98ba32fcca130dafcb238fd0 /init/do_mounts_rd.c
parentfs: add ksys_ftruncate() wrapper; remove in-kernel calls to sys_ftruncate() (diff)
downloadlinux-2ca2a09d6215fd9621aa3e2db7cc9428a61f2911.tar.xz
linux-2ca2a09d6215fd9621aa3e2db7cc9428a61f2911.zip
fs: add ksys_close() wrapper; remove in-kernel calls to sys_close()
Using the ksys_close() wrapper allows us to get rid of in-kernel calls to the sys_close() 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_close(), with one subtle difference: The few places which checked the return value did not care about the return value re-writing in sys_close(), so simply use a wrapper around __close_fd(). 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 'init/do_mounts_rd.c')
-rw-r--r--init/do_mounts_rd.c6
1 files changed, 3 insertions, 3 deletions
diff --git a/init/do_mounts_rd.c b/init/do_mounts_rd.c
index 5b69056f610a..f1aa341862d3 100644
--- a/init/do_mounts_rd.c
+++ b/init/do_mounts_rd.c
@@ -257,7 +257,7 @@ int __init rd_load_image(char *from)
if (i && (i % devblocks == 0)) {
printk("done disk #%d.\n", disk++);
rotate = 0;
- if (sys_close(in_fd)) {
+ if (ksys_close(in_fd)) {
printk("Error closing the disk.\n");
goto noclose_input;
}
@@ -283,9 +283,9 @@ int __init rd_load_image(char *from)
successful_load:
res = 1;
done:
- sys_close(in_fd);
+ ksys_close(in_fd);
noclose_input:
- sys_close(out_fd);
+ ksys_close(out_fd);
out:
kfree(buf);
ksys_unlink("/dev/ram");