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authorDominik Brodowski <linux@dominikbrodowski.net>2018-03-15 00:35:11 +0300
committerDominik Brodowski <linux@dominikbrodowski.net>2018-04-02 21:16:05 +0300
commit70f68ee81e2e9ad5105b8d2bd324e890e94c6ad9 (patch)
treee25ed255335d406923a23c38aa5980590ffefae4 /kernel
parent3ce4a7bf66263748194b77ccefd284be963c6304 (diff)
downloadlinux-70f68ee81e2e9ad5105b8d2bd324e890e94c6ad9.tar.xz
fs: add ksys_sync() helper; remove in-kernel calls to sys_sync()
Using this helper allows us to avoid the in-kernel calls to the sys_sync() 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_sync(). 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> Signed-off-by: Dominik Brodowski <linux@dominikbrodowski.net>
Diffstat (limited to 'kernel')
-rw-r--r--kernel/power/hibernate.c2
-rw-r--r--kernel/power/suspend.c2
-rw-r--r--kernel/power/user.c2
3 files changed, 3 insertions, 3 deletions
diff --git a/kernel/power/hibernate.c b/kernel/power/hibernate.c
index a5c36e9c56a6..4710f1b142fc 100644
--- a/kernel/power/hibernate.c
+++ b/kernel/power/hibernate.c
@@ -701,7 +701,7 @@ int hibernate(void)
}
pr_info("Syncing filesystems ... \n");
- sys_sync();
+ ksys_sync();
pr_info("done.\n");
error = freeze_processes();
diff --git a/kernel/power/suspend.c b/kernel/power/suspend.c
index 0685c4499431..4c10be0f4843 100644
--- a/kernel/power/suspend.c
+++ b/kernel/power/suspend.c
@@ -560,7 +560,7 @@ static int enter_state(suspend_state_t state)
#ifndef CONFIG_SUSPEND_SKIP_SYNC
trace_suspend_resume(TPS("sync_filesystems"), 0, true);
pr_info("Syncing filesystems ... ");
- sys_sync();
+ ksys_sync();
pr_cont("done.\n");
trace_suspend_resume(TPS("sync_filesystems"), 0, false);
#endif
diff --git a/kernel/power/user.c b/kernel/power/user.c
index 22df9f7ff672..75c959de4b29 100644
--- a/kernel/power/user.c
+++ b/kernel/power/user.c
@@ -224,7 +224,7 @@ static long snapshot_ioctl(struct file *filp, unsigned int cmd,
break;
printk("Syncing filesystems ... ");
- sys_sync();
+ ksys_sync();
printk("done.\n");
error = freeze_processes();