On Fri, Mar 11, 2016 at 3:17 PM, Christoph Hellwig <hch@xxxxxxxxxxxxx> wrote:
>> +#include <linux/richacl_xattr.h>
>> +
>> +MODULE_LICENSE("GPL");
>
> what's the point given that the code isn't even modolar?
A leftover, removed now.
>> +static void
>> +fix_xattr_from_user(const char *kname, void *kvalue, size_t size)
>> +{
>> + if (strncmp(kname, XATTR_SYSTEM_PREFIX, XATTR_SYSTEM_PREFIX_LEN))
>> + return;
>> + kname += XATTR_SYSTEM_PREFIX_LEN;
>> + if (!strcmp(kname, XATTR_POSIX_ACL_ACCESS) ||
>> + !strcmp(kname, XATTR_POSIX_ACL_DEFAULT))
>> + posix_acl_fix_xattr_from_user(kvalue, size);
>> +}
>>
>> /*
>> * Extended attribute SET operations
>> @@ -329,9 +339,7 @@ setxattr(struct dentry *d, const char __user *name, const void __user *value,
>> error = -EFAULT;
>> goto out;
>> }
>> - if ((strcmp(kname, XATTR_NAME_POSIX_ACL_ACCESS) == 0) ||
>> - (strcmp(kname, XATTR_NAME_POSIX_ACL_DEFAULT) == 0))
>> - posix_acl_fix_xattr_from_user(kvalue, size);
>> + fix_xattr_from_user(kname, kvalue, size);
>> }
>>
>> error = vfs_setxattr(d, kname, kvalue, size, flags);
>> @@ -396,6 +404,17 @@ SYSCALL_DEFINE5(fsetxattr, int, fd, const char __user *, name,
>> return error;
>> }
>>
>> +static void
>> +fix_xattr_to_user(const char *kname, void *kvalue, size_t size)
>> +{
>> + if (strncmp(kname, XATTR_SYSTEM_PREFIX, XATTR_SYSTEM_PREFIX_LEN))
>> + return;
>> + kname += XATTR_SYSTEM_PREFIX_LEN;
>> + if (!strcmp(kname, XATTR_POSIX_ACL_ACCESS) ||
>> + !strcmp(kname, XATTR_POSIX_ACL_DEFAULT))
>> + posix_acl_fix_xattr_to_user(kvalue, size);
>> +}
>> +
>> /*
>> * Extended attribute GET operations
>> */
>> @@ -426,9 +445,7 @@ getxattr(struct dentry *d, const char __user *name, void __user *value,
>>
>> error = vfs_getxattr(d, kname, kvalue, size);
>> if (error > 0) {
>> - if ((strcmp(kname, XATTR_NAME_POSIX_ACL_ACCESS) == 0) ||
>> - (strcmp(kname, XATTR_NAME_POSIX_ACL_DEFAULT) == 0))
>> - posix_acl_fix_xattr_to_user(kvalue, size);
>> + fix_xattr_to_user(kname, kvalue, size);
>
> I don't see how this is related to the rest of the patch.
Indeed, this is unrelated now. I'll split it off.
>> +++ b/include/linux/richacl_xattr.h
>
> What's the point in splitting this from the richacl.h header?
>
> Same for the uapi versions.
>
>> +struct richacl_xattr {
>> + unsigned char a_version;
>> + unsigned char a_flags;
>
> Explicit __u8 for uapi headers, please.
Okay.
Thanks,
Andreas
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