diff options
| author |   Seunghun Lee <waydi1@gmail.com> | 2014-09-14 22:15:10 +0900 |
|---|---|---|
| committer |   Al Viro <viro@zeniv.linux.org.uk> | 2014-10-09 02:39:16 -0400 |
| commit | 5e6123f3477e4260fb14392f0a88f1a842fa4d42 (patch) | |
| tree | 66cf4572317d0e634f169cbdc702e773fe0e4b5c /fs/compat.c | |
| parent | gfs2_atomic_open(): skip lookups on hashed dentry (diff) | |
| download | wireguard-linux-5e6123f3477e4260fb14392f0a88f1a842fa4d42.tar.xz wireguard-linux-5e6123f3477e4260fb14392f0a88f1a842fa4d42.zip | |
vfs: move getname() from callers to do_mount()
It would make more sense to pass char __user * instead of
char * in callers of do_mount() and do getname() inside do_mount().
Suggested-by: Al Viro <viro@ZenIV.linux.org.uk>
Signed-off-by: Seunghun Lee <waydi1@gmail.com>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Diffstat (limited to 'fs/compat.c')
| -rw-r--r-- | fs/compat.c | 20 |
1 files changed, 6 insertions, 14 deletions
diff --git a/fs/compat.c b/fs/compat.c index 6205c247a6e3..b13df99f3534 100644 --- a/fs/compat.c +++ b/fs/compat.c @@ -794,7 +794,6 @@ COMPAT_SYSCALL_DEFINE5(mount, const char __user *, dev_name, char *kernel_type; unsigned long data_page; char *kernel_dev; - struct filename *dir; int retval; kernel_type = copy_mount_string(type); @@ -802,19 +801,14 @@ COMPAT_SYSCALL_DEFINE5(mount, const char __user *, dev_name, if (IS_ERR(kernel_type)) goto out; - dir = getname(dir_name); - retval = PTR_ERR(dir); - if (IS_ERR(dir)) - goto out1; - kernel_dev = copy_mount_string(dev_name); retval = PTR_ERR(kernel_dev); if (IS_ERR(kernel_dev)) - goto out2; + goto out1; retval = copy_mount_options(data, &data_page); if (retval < 0) - goto out3; + goto out2; retval = -EINVAL; @@ -823,19 +817,17 @@ COMPAT_SYSCALL_DEFINE5(mount, const char __user *, dev_name, do_ncp_super_data_conv((void *)data_page); } else if (!strcmp(kernel_type, NFS4_NAME)) { if (do_nfs4_super_data_conv((void *) data_page)) - goto out4; + goto out3; } } - retval = do_mount(kernel_dev, dir->name, kernel_type, + retval = do_mount(kernel_dev, dir_name, kernel_type, flags, (void*)data_page); - out4: - free_page(data_page); out3: - kfree(kernel_dev); + free_page(data_page); out2: - putname(dir); + kfree(kernel_dev); out1: kfree(kernel_type); out: |