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btrfs: Simplify btrfs_file_llseek

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Handle SEEK_END/SEEK_CUR in a single 'default' case by directly
returning from generic_file_llseek. This makes the 'out' label
redundant.  Finally return directly the vale from vfs_setpos. No
semantic changes.

Reviewed-by: Johannes Thumshirn <jthumshirn@suse.de>
Signed-off-by: Nikolay Borisov <nborisov@suse.com>
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
This commit is contained in:
Nikolay Borisov 2019-09-27 13:23:17 +03:00 committed by David Sterba
parent d79b7c26b1
commit 2034f3b470
1 changed files with 3 additions and 7 deletions
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10
fs/btrfs/file.c
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@ -3422,10 +3422,8 @@ static loff_t btrfs_file_llseek(struct file *file, loff_t offset, int whence)
int ret;
switch (whence) {
case SEEK_END:
case SEEK_CUR:
offset = generic_file_llseek(file, offset, whence);
goto out;
default:
return generic_file_llseek(file, offset, whence);
case SEEK_DATA:
case SEEK_HOLE:
inode_lock_shared(inode);
@ -3436,9 +3434,7 @@ static loff_t btrfs_file_llseek(struct file *file, loff_t offset, int whence)
return ret;
}
offset = vfs_setpos(file, offset, inode->i_sb->s_maxbytes);
out:
return offset;
return vfs_setpos(file, offset, inode->i_sb->s_maxbytes);
}
static int btrfs_file_open(struct inode *inode, struct file *filp)