From: Christoph Hellwig <hch@lst.de>
To: Dave Chinner <david@fromorbit.com>
Cc: Christoph Hellwig <hch@lst.de>,
linux-xfs@vger.kernel.org,
Chandan Rajendra <chandanrlinux@gmail.com>,
"Darrick J . Wong" <darrick.wong@oracle.com>
Subject: Re: [PATCH 11/30] xfs: pass an initialized xfs_da_args to xfs_attr_get
Date: Wed, 26 Feb 2020 16:10:22 +0100 [thread overview]
Message-ID: <20200226151022.GB19599@lst.de> (raw)
In-Reply-To: <20200226003310.GT10776@dread.disaster.area>
On Wed, Feb 26, 2020 at 11:33:10AM +1100, Dave Chinner wrote:
> > - error = xfs_attr_get(XFS_I(inode), name, namelen, &kbuf, (int *)len,
> > - flags);
> > + error = xfs_attr_get(&args);
> > if (error)
> > goto out_kfree;
> >
> > - if (copy_to_user(ubuf, kbuf, *len))
> > + *len = args.valuelen;
> > + if (copy_to_user(ubuf, args.value, args.valuelen))
> > error = -EFAULT;
> >
> > out_kfree:
> > - kmem_free(kbuf);
> > + kmem_free(args.value);
> > return error;
>
> This would seem like a prime candidate for ATTR_ALLOC conversion?
I'll add a patch to the end of the series to use lazy allocation here.
next prev parent reply other threads:[~2020-02-26 15:10 UTC|newest]
Thread overview: 46+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-02-25 23:09 clean up the attr interface v6 Christoph Hellwig
2020-02-25 23:09 ` [PATCH 01/30] xfs: reject invalid flags combinations in XFS_IOC_ATTRLIST_BY_HANDLE Christoph Hellwig
2020-02-25 23:09 ` [PATCH 02/30] xfs: remove the ATTR_INCOMPLETE flag Christoph Hellwig
2020-02-25 23:09 ` [PATCH 03/30] xfs: merge xfs_attr_remove into xfs_attr_set Christoph Hellwig
2020-02-26 16:24 ` Darrick J. Wong
2020-02-25 23:09 ` [PATCH 04/30] xfs: merge xfs_attrmulti_attr_remove into xfs_attrmulti_attr_set Christoph Hellwig
2020-02-25 23:09 ` [PATCH 05/30] xfs: use strndup_user in XFS_IOC_ATTRMULTI_BY_HANDLE Christoph Hellwig
2020-02-25 23:51 ` Dave Chinner
2020-02-25 23:09 ` [PATCH 06/30] xfs: factor out a helper for a single XFS_IOC_ATTRMULTI_BY_HANDLE op Christoph Hellwig
2020-02-25 23:55 ` Dave Chinner
2020-02-25 23:09 ` [PATCH 07/30] xfs: remove the name == NULL check from xfs_attr_args_init Christoph Hellwig
2020-02-25 23:09 ` [PATCH 08/30] xfs: remove the MAXNAMELEN " Christoph Hellwig
2020-02-25 23:09 ` [PATCH 09/30] xfs: turn xfs_da_args.value into a void pointer Christoph Hellwig
2020-02-25 23:55 ` Dave Chinner
2020-02-25 23:09 ` [PATCH 10/30] xfs: pass an initialized xfs_da_args structure to xfs_attr_set Christoph Hellwig
2020-02-26 0:21 ` Dave Chinner
2020-02-26 15:07 ` Christoph Hellwig
2020-02-25 23:09 ` [PATCH 11/30] xfs: pass an initialized xfs_da_args to xfs_attr_get Christoph Hellwig
2020-02-26 0:33 ` Dave Chinner
2020-02-26 15:10 ` Christoph Hellwig [this message]
2020-02-25 23:09 ` [PATCH 12/30] xfs: remove the xfs_inode argument to xfs_attr_get_ilocked Christoph Hellwig
2020-02-25 23:09 ` [PATCH 13/30] xfs: remove ATTR_KERNOVAL Christoph Hellwig
2020-02-25 23:09 ` [PATCH 14/30] xfs: remove ATTR_ALLOC and XFS_DA_OP_ALLOCVAL Christoph Hellwig
2020-02-25 23:09 ` [PATCH 15/30] xfs: replace ATTR_KERNOTIME with XFS_DA_OP_NOTIME Christoph Hellwig
2020-02-25 23:09 ` [PATCH 16/30] xfs: factor out a xfs_attr_match helper Christoph Hellwig
2020-02-25 23:09 ` [PATCH 17/30] xfs: cleanup struct xfs_attr_list_context Christoph Hellwig
2020-02-25 23:10 ` [PATCH 18/30] xfs: remove the unused ATTR_ENTRY macro Christoph Hellwig
2020-02-25 23:10 ` [PATCH 19/30] xfs: open code ATTR_ENTSIZE Christoph Hellwig
2020-02-25 23:10 ` [PATCH 20/30] xfs: move the legacy xfs_attr_list to xfs_ioctl.c Christoph Hellwig
2020-02-25 23:10 ` [PATCH 21/30] xfs: rename xfs_attr_list_int to xfs_attr_list Christoph Hellwig
2020-02-25 23:10 ` [PATCH 22/30] xfs: lift common checks into xfs_ioc_attr_list Christoph Hellwig
2020-02-25 23:10 ` [PATCH 23/30] xfs: lift buffer allocation " Christoph Hellwig
2020-02-25 23:10 ` [PATCH 24/30] xfs: lift cursor copy in/out " Christoph Hellwig
2020-02-25 23:10 ` [PATCH 25/30] xfs: improve xfs_forget_acl Christoph Hellwig
2020-02-25 23:10 ` [PATCH 26/30] xfs: clean up the ATTR_REPLACE checks Christoph Hellwig
2020-02-26 0:36 ` Dave Chinner
2020-02-25 23:10 ` [PATCH 27/30] xfs: clean up the attr flag confusion Christoph Hellwig
2020-02-26 1:03 ` Dave Chinner
2020-02-26 15:14 ` Christoph Hellwig
2020-02-26 15:18 ` Christoph Hellwig
2020-02-25 23:10 ` [PATCH 28/30] xfs: remove XFS_DA_OP_INCOMPLETE Christoph Hellwig
2020-02-26 1:03 ` Dave Chinner
2020-02-25 23:10 ` [PATCH 29/30] xfs: embedded the attrlist cursor into struct xfs_attr_list_context Christoph Hellwig
2020-02-25 23:10 ` [PATCH 30/30] xfs: clean up bufsize alignment in xfs_ioc_attr_list Christoph Hellwig
2020-02-26 1:04 ` Dave Chinner
2020-02-26 16:27 ` clean up the attr interface v6 Darrick J. Wong
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