diff options
| author | Dominik Brodowski <linux@dominikbrodowski.net> | 2018-10-23 23:10:35 +0300 |
|---|---|---|
| committer | Dominik Brodowski <linux@dominikbrodowski.net> | 2019-12-12 16:49:57 +0300 |
| commit | 5e787dbf659fe77d56215be74044f85e01b3920f (patch) | |
| tree | 2041ebfdeab6acf7e5bc4069f8d1905914ea4d86 /drivers/base | |
| parent | ae4b064e2a616b545acf02b8f50cc513b32c7522 (diff) | |
| download | linux-5e787dbf659fe77d56215be74044f85e01b3920f.tar.xz | |
devtmpfs: use do_mount() instead of ksys_mount()
In devtmpfs, do_mount() can be called directly instead of complex wrapping
by ksys_mount():
- the first and third arguments are const strings in the kernel,
and do not need to be copied over from userspace;
- the fifth argument is NULL, and therefore no page needs to be
copied over from userspace;
- the second and fourth argument are passed through anyway.
Signed-off-by: Dominik Brodowski <linux@dominikbrodowski.net>
Diffstat (limited to 'drivers/base')
| -rw-r--r-- | drivers/base/devtmpfs.c | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/drivers/base/devtmpfs.c b/drivers/base/devtmpfs.c index 30d0523014e0..6cdbf1531238 100644 --- a/drivers/base/devtmpfs.c +++ b/drivers/base/devtmpfs.c @@ -359,7 +359,7 @@ static int handle_remove(const char *nodename, struct device *dev) * If configured, or requested by the commandline, devtmpfs will be * auto-mounted after the kernel mounted the root filesystem. */ -int devtmpfs_mount(const char *mntdir) +int devtmpfs_mount(void) { int err; @@ -369,7 +369,7 @@ int devtmpfs_mount(const char *mntdir) if (!thread) return 0; - err = ksys_mount("devtmpfs", mntdir, "devtmpfs", MS_SILENT, NULL); + err = do_mount("devtmpfs", "dev", "devtmpfs", MS_SILENT, NULL); if (err) printk(KERN_INFO "devtmpfs: error mounting %i\n", err); else @@ -394,7 +394,7 @@ static int devtmpfsd(void *p) *err = ksys_unshare(CLONE_NEWNS); if (*err) goto out; - *err = ksys_mount("devtmpfs", "/", "devtmpfs", MS_SILENT, NULL); + *err = do_mount("devtmpfs", "/", "devtmpfs", MS_SILENT, NULL); if (*err) goto out; ksys_chdir("/.."); /* will traverse into overmounted root */ |