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f2fs: remove f2fs_dir_open() 

Since encrypted directories can be opened and searched without their key
being available, and each readdir and ->lookup() tries to set up the
key, trying to set up the key in ->open() too isn't really useful.

Just remove it so that directories don't need an ->open() method
anymore, and so that we eliminate a use of fscrypt_get_encryption_info()
(which I'd like to stop exporting to filesystems).

Reviewed-by: Chao Yu <yuchao0@huawei.com>
Link: https://lore.kernel.org/r/20201203022041.230976-3-ebiggers@kernel.org
Signed-off-by: Eric Biggers <ebiggers@google.com>
This commit is contained in:
Eric Biggers 2020-12-02 18:20:34 -08:00
parent 65f62515e9
commit 73114b6d28
1 changed files with 0 additions and 8 deletions
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8
fs/f2fs/dir.c
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@ -1081,19 +1081,11 @@ static int f2fs_readdir(struct file *file, struct dir_context *ctx)
return err < 0 ? err : 0;
}
static int f2fs_dir_open(struct inode *inode, struct file *filp)
{
if (IS_ENCRYPTED(inode))
return fscrypt_get_encryption_info(inode) ? -EACCES : 0;
return 0;
}
const struct file_operations f2fs_dir_operations = {
.llseek = generic_file_llseek,
.read = generic_read_dir,
.iterate_shared = f2fs_readdir,
.fsync = f2fs_sync_file,
.open = f2fs_dir_open,
.unlocked_ioctl = f2fs_ioctl,
#ifdef CONFIG_COMPAT
.compat_ioctl = f2fs_compat_ioctl,