From: kernel test robot <[email protected]>
To: Hao Xu <[email protected]>,
[email protected], Jens Axboe <[email protected]>
Cc: [email protected], [email protected],
Dominique Martinet <[email protected]>,
Pavel Begunkov <[email protected]>,
Christian Brauner <[email protected]>,
Alexander Viro <[email protected]>,
Stefan Roesch <[email protected]>, Clay Harris <[email protected]>,
Dave Chinner <[email protected]>,
[email protected], Wanpeng Li <[email protected]>
Subject: Re: [PATCH 4/5] xfs: add NOWAIT semantics for readdir
Date: Wed, 19 Jul 2023 10:35:07 +0800 [thread overview]
Message-ID: <[email protected]> (raw)
In-Reply-To: <[email protected]>
Hi Hao,
kernel test robot noticed the following build warnings:
[auto build test WARNING on xfs-linux/for-next]
[also build test WARNING on linus/master v6.5-rc2 next-20230718]
[If your patch is applied to the wrong git tree, kindly drop us a note.
And when submitting patch, we suggest to use '--base' as documented in
https://git-scm.com/docs/git-format-patch#_base_tree_information]
url: https://github.com/intel-lab-lkp/linux/commits/Hao-Xu/fs-split-off-vfs_getdents-function-of-getdents64-syscall/20230718-212529
base: https://git.kernel.org/pub/scm/fs/xfs/xfs-linux.git for-next
patch link: https://lore.kernel.org/r/20230718132112.461218-5-hao.xu%40linux.dev
patch subject: [PATCH 4/5] xfs: add NOWAIT semantics for readdir
config: x86_64-randconfig-r012-20230718 (https://download.01.org/0day-ci/archive/20230719/[email protected]/config)
compiler: clang version 15.0.7 (https://github.com/llvm/llvm-project.git 8dfdcc7b7bf66834a761bd8de445840ef68e4d1a)
reproduce: (https://download.01.org/0day-ci/archive/20230719/[email protected]/reproduce)
If you fix the issue in a separate patch/commit (i.e. not just a new version of
the same patch/commit), kindly add following tags
| Reported-by: kernel test robot <[email protected]>
| Closes: https://lore.kernel.org/oe-kbuild-all/[email protected]/
All warnings (new ones prefixed by >>):
>> fs/xfs/libxfs/xfs_da_btree.c:2646:8: warning: variable 'buf_flags' set but not used [-Wunused-but-set-variable]
int buf_flags = 0;
^
1 warning generated.
vim +/buf_flags +2646 fs/xfs/libxfs/xfs_da_btree.c
2627
2628 /*
2629 * Get a buffer for the dir/attr block, fill in the contents.
2630 */
2631 int
2632 xfs_da_read_buf(
2633 struct xfs_trans *tp,
2634 struct xfs_inode *dp,
2635 xfs_dablk_t bno,
2636 unsigned int flags,
2637 struct xfs_buf **bpp,
2638 int whichfork,
2639 const struct xfs_buf_ops *ops)
2640 {
2641 struct xfs_mount *mp = dp->i_mount;
2642 struct xfs_buf *bp;
2643 struct xfs_buf_map map, *mapp = ↦
2644 int nmap = 1;
2645 int error;
> 2646 int buf_flags = 0;
2647
2648 *bpp = NULL;
2649 error = xfs_dabuf_map(dp, bno, flags, whichfork, &mapp, &nmap);
2650 if (error || !nmap)
2651 goto out_free;
2652
2653 /*
2654 * NOWAIT semantics mean we don't wait on the buffer lock nor do we
2655 * issue IO for this buffer if it is not already in memory. Caller will
2656 * retry. This will return -EAGAIN if the buffer is in memory and cannot
2657 * be locked, and no buffer and no error if it isn't in memory. We
2658 * translate both of those into a return state of -EAGAIN and *bpp =
2659 * NULL.
2660 */
2661 if (flags & XFS_DABUF_NOWAIT)
2662 buf_flags |= XBF_TRYLOCK | XBF_INCORE;
2663 error = xfs_trans_read_buf_map(mp, tp, mp->m_ddev_targp, mapp, nmap, 0,
2664 &bp, ops);
2665 if (error)
2666 goto out_free;
2667 if (!bp) {
2668 ASSERT(flags & XFS_DABUF_NOWAIT);
2669 error = -EAGAIN;
2670 goto out_free;
2671 }
2672
2673 if (whichfork == XFS_ATTR_FORK)
2674 xfs_buf_set_ref(bp, XFS_ATTR_BTREE_REF);
2675 else
2676 xfs_buf_set_ref(bp, XFS_DIR_BTREE_REF);
2677 *bpp = bp;
2678 out_free:
2679 if (mapp != &map)
2680 kmem_free(mapp);
2681
2682 return error;
2683 }
2684
--
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests/wiki
next prev parent reply other threads:[~2023-07-19 2:35 UTC|newest]
Thread overview: 41+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-07-18 13:21 [PATCH v4 0/5] io_uring getdents Hao Xu
2023-07-18 13:21 ` [PATCH 1/5] fs: split off vfs_getdents function of getdents64 syscall Hao Xu
2023-07-18 13:21 ` [PATCH 2/5] vfs_getdents/struct dir_context: add flags field Hao Xu
2023-07-18 13:21 ` [PATCH 3/5] io_uring: add support for getdents Hao Xu
2023-07-19 8:56 ` Hao Xu
2023-07-26 15:00 ` Christian Brauner
2023-07-27 11:51 ` Hao Xu
2023-07-27 14:27 ` Christian Brauner
2023-07-27 15:12 ` Pavel Begunkov
2023-07-27 15:52 ` Christian Brauner
2023-07-27 16:17 ` Pavel Begunkov
2023-07-27 16:28 ` Christian Brauner
2023-07-31 1:58 ` Dave Chinner
2023-07-31 7:34 ` Hao Xu
2023-07-31 7:50 ` Christian Brauner
2023-07-31 7:40 ` Christian Brauner
2023-07-30 18:02 ` Hao Xu
2023-07-31 8:18 ` Christian Brauner
2023-07-31 9:31 ` Hao Xu
2023-07-31 1:33 ` Dave Chinner
2023-07-31 8:13 ` Christian Brauner
2023-07-31 15:26 ` Darrick J. Wong
2023-07-31 22:18 ` Dave Chinner
2023-08-01 0:28 ` Jens Axboe
2023-08-01 0:47 ` Matthew Wilcox
2023-08-01 0:49 ` Jens Axboe
2023-08-01 1:01 ` Matthew Wilcox
2023-08-01 7:00 ` Christian Brauner
2023-08-01 6:59 ` Christian Brauner
2023-08-01 7:17 ` Christian Brauner
2023-08-08 4:34 ` Hao Xu
2023-08-08 5:18 ` Hao Xu
2023-08-08 9:33 ` Hao Xu
2023-08-08 22:55 ` Jens Axboe
2023-08-01 18:39 ` Hao Xu
2023-07-18 13:21 ` [PATCH 4/5] xfs: add NOWAIT semantics for readdir Hao Xu
2023-07-19 2:35 ` kernel test robot [this message]
2023-07-18 13:21 ` [PATCH RFC 5/5] disable fixed file for io_uring getdents for now Hao Xu
2023-07-26 14:23 ` Christian Brauner
2023-07-27 12:09 ` Hao Xu
2023-07-19 6:04 ` [PATCH v4 0/5] io_uring getdents Christian Brauner
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