From: Gao Xiang <hsiangkao@linux.alibaba.com>
To: Jingbo Xu <jefflexu@linux.alibaba.com>,
xiang@kernel.org, chao@kernel.org, huyue2@coolpad.com,
linux-erofs@lists.ozlabs.org
Cc: linux-kernel@vger.kernel.org
Subject: Re: [PATCH v3 1/5] erofs: introduce erofs_xattr_iter_fixup_aligned() helper
Date: Tue, 30 May 2023 11:47:18 +0800 [thread overview]
Message-ID: <77ed16d5-4e75-0d9d-5a11-0d26573f8b9c@linux.alibaba.com> (raw)
In-Reply-To: <6e7b2c58-0bb4-e008-a157-3d83ac33bf81@linux.alibaba.com>
On 2023/5/30 11:42, Jingbo Xu wrote:
>
>
> On 5/29/23 3:41 PM, Gao Xiang wrote:
>> Hi,
>>
>> On 2023/5/18 10:45, Jingbo Xu wrote:
>>> Introduce erofs_xattr_iter_fixup_aligned() helper where
>>> it.ofs <= EROFS_BLKSIZ is mandatory.
>>>
>>> Signed-off-by: Jingbo Xu <jefflexu@linux.alibaba.com>
>>> ---
>>> fs/erofs/xattr.c | 79 +++++++++++++++++++++---------------------------
>>> 1 file changed, 35 insertions(+), 44 deletions(-)
>>>
>>> diff --git a/fs/erofs/xattr.c b/fs/erofs/xattr.c
>>> index bbfe7ce170d2..b79be2a556ba 100644
>>> --- a/fs/erofs/xattr.c
>>> +++ b/fs/erofs/xattr.c
>>> @@ -29,6 +29,28 @@ struct xattr_iter {
>>> unsigned int ofs;
>>> };
>>> +static inline int erofs_xattr_iter_fixup(struct xattr_iter *it)
>>> +{
>>> + if (it->ofs < it->sb->s_blocksize)
>>> + return 0;
>>> +
>>> + it->blkaddr += erofs_blknr(it->sb, it->ofs);
>>> + it->kaddr = erofs_read_metabuf(&it->buf, it->sb, it->blkaddr,
>>> EROFS_KMAP);
>>
>> could we use a new buf interface to init_metabuf at once?
>
> As discussed offline, I think the following unified API is preferred:
>
> ```
> int erofs_xattr_iter_fixup(struct xattr_iter *it, bool nospan)
>
> {
> if (it->ofs < it->sb->s_blocksize)
> return 0;
>
> if (nospan && it->ofs != it->sb->s_blocksize) {
> DBG_BUGON(1);
> return -EFSCORRUPTED;
> }
>
> ...
> }
> ```
Yeah, could you send the next version for this?
Thanks,
Gao Xiang
>
next prev parent reply other threads:[~2023-05-30 3:47 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-05-18 2:45 [PATCH v3 0/5] erofs: cleanup of xattr handling Jingbo Xu
2023-05-18 2:45 ` [PATCH v3 1/5] erofs: introduce erofs_xattr_iter_fixup_aligned() helper Jingbo Xu
2023-05-29 7:41 ` Gao Xiang
2023-05-30 3:42 ` Jingbo Xu
2023-05-30 3:47 ` Gao Xiang [this message]
2023-05-18 2:45 ` [PATCH v3 2/5] erofs: unify xattr_iter structures Jingbo Xu
2023-05-30 3:55 ` Gao Xiang
2023-05-18 2:45 ` [PATCH v3 3/5] erofs: make the size of read data stored in buffer_ofs Jingbo Xu
2023-05-18 2:45 ` [PATCH v3 4/5] erofs: unify inline/share xattr iterators for listxattr/getxattr Jingbo Xu
2023-05-18 2:45 ` [PATCH v3 5/5] erofs: use separate xattr parsers " Jingbo Xu
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