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f2fs: clean up f2fs_ioctl functions

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This patch cleans up f2fs_ioctl functions for better readability.

Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
This commit is contained in:
Jaegeuk Kim 2014-09-24 15:37:02 -07:00
parent 8a21984d5d
commit 52656e6cf7
1 changed files with 87 additions and 75 deletions
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44
fs/f2fs/file.c
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@ -805,20 +805,21 @@ static inline __u32 f2fs_mask_flags(umode_t mode, __u32 flags)
return flags & F2FS_OTHER_FLMASK;
}
long f2fs_ioctl(struct file *filp, unsigned int cmd, unsigned long arg)
static int f2fs_ioc_getflags(struct file *filp, unsigned long arg)
{
struct inode *inode = file_inode(filp);
struct f2fs_inode_info *fi = F2FS_I(inode);
unsigned int flags;
int ret;
unsigned int flags = fi->i_flags & FS_FL_USER_VISIBLE;
return put_user(flags, (int __user *)arg);
}
switch (cmd) {
case F2FS_IOC_GETFLAGS:
flags = fi->i_flags & FS_FL_USER_VISIBLE;
return put_user(flags, (int __user *) arg);
case F2FS_IOC_SETFLAGS:
{
static int f2fs_ioc_setflags(struct file *filp, unsigned long arg)
{
struct inode *inode = file_inode(filp);
struct f2fs_inode_info *fi = F2FS_I(inode);
unsigned int flags = fi->i_flags & FS_FL_USER_VISIBLE;
unsigned int oldflags;
int ret;
ret = mnt_want_write_file(filp);
if (ret)
@ -829,7 +830,7 @@ long f2fs_ioctl(struct file *filp, unsigned int cmd, unsigned long arg)
goto out;
}
if (get_user(flags, (int __user *) arg)) {
if (get_user(flags, (int __user *)arg)) {
ret = -EFAULT;
goto out;
}
@ -859,13 +860,15 @@ long f2fs_ioctl(struct file *filp, unsigned int cmd, unsigned long arg)
out:
mnt_drop_write_file(filp);
return ret;
}
case FITRIM:
{
}
static int f2fs_ioc_fitrim(struct file *filp, unsigned long arg)
{
struct inode *inode = file_inode(filp);
struct super_block *sb = inode->i_sb;
struct request_queue *q = bdev_get_queue(sb->s_bdev);
struct fstrim_range range;
int ret = 0;
int ret;
if (!capable(CAP_SYS_ADMIN))
return -EPERM;
@ -886,9 +889,18 @@ long f2fs_ioctl(struct file *filp, unsigned int cmd, unsigned long arg)
if (copy_to_user((struct fstrim_range __user *)arg, &range,
sizeof(range)))
return -EFAULT;
return 0;
}
}
long f2fs_ioctl(struct file *filp, unsigned int cmd, unsigned long arg)
{
switch (cmd) {
case F2FS_IOC_GETFLAGS:
return f2fs_ioc_getflags(filp, arg);
case F2FS_IOC_SETFLAGS:
return f2fs_ioc_setflags(filp, arg);
case FITRIM:
return f2fs_ioc_fitrim(filp, arg);
default:
return -ENOTTY;
}