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authorDominik Brodowski <linux@dominikbrodowski.net>2018-03-17 16:26:56 +0100
committerDominik Brodowski <linux@dominikbrodowski.net>2018-04-02 20:15:46 +0200
commitcb0b476ab12ca3bd9dd9122047660f3a73e8d647 (patch)
treeb139f648f279459e3ae45c198d1450dc380b0d78 /fs/quota/quota.c
parent183caa3c8668e95c3647ac1e7e6b8876b7d9fbdb (diff)
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fs/quota: add kernel_quotactl() helper; remove in-kernel call to syscall
Using the fs-internal kernel_quotactl() helper allows us to get rid of the fs-internal call to the sys_quotactl() syscall. 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 Acked-by: Jan Kara <jack@suse.cz> Signed-off-by: Dominik Brodowski <linux@dominikbrodowski.net>
Diffstat (limited to 'fs/quota/quota.c')
-rw-r--r--fs/quota/quota.c10
1 files changed, 8 insertions, 2 deletions
diff --git a/fs/quota/quota.c b/fs/quota/quota.c
index 43612e2a73af..860bfbe7a07a 100644
--- a/fs/quota/quota.c
+++ b/fs/quota/quota.c
@@ -833,8 +833,8 @@ static struct super_block *quotactl_block(const char __user *special, int cmd)
* calls. Maybe we need to add the process quotas etc. in the future,
* but we probably should use rlimits for that.
*/
-SYSCALL_DEFINE4(quotactl, unsigned int, cmd, const char __user *, special,
- qid_t, id, void __user *, addr)
+int kernel_quotactl(unsigned int cmd, const char __user *special,
+ qid_t id, void __user *addr)
{
uint cmds, type;
struct super_block *sb = NULL;
@@ -885,3 +885,9 @@ out:
path_put(pathp);
return ret;
}
+
+SYSCALL_DEFINE4(quotactl, unsigned int, cmd, const char __user *, special,
+ qid_t, id, void __user *, addr)
+{
+ return kernel_quotactl(cmd, special, id, addr);
+}