From: Brian Foster <bfoster@redhat.com>
To: "Darrick J. Wong" <darrick.wong@oracle.com>
Cc: linux-xfs@vger.kernel.org
Subject: Re: [PATCH 7/8] xfs: add tracepoints for high level iunlink operations
Date: Fri, 1 Feb 2019 14:01:46 -0500 [thread overview]
Message-ID: <20190201190145.GF31203@bfoster> (raw)
In-Reply-To: <154897671399.26065.15247361285974787568.stgit@magnolia>
On Thu, Jan 31, 2019 at 03:18:34PM -0800, Darrick J. Wong wrote:
> From: Darrick J. Wong <darrick.wong@oracle.com>
>
> Add tracepoints so we can associate high level operations with low level
> updates. No functional changes.
>
> Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
> ---
> fs/xfs/xfs_inode.c | 4 ++++
> fs/xfs/xfs_trace.h | 3 +++
> 2 files changed, 7 insertions(+)
>
>
> diff --git a/fs/xfs/xfs_inode.c b/fs/xfs/xfs_inode.c
> index d5b3f8fdac7e..56349497d75b 100644
> --- a/fs/xfs/xfs_inode.c
> +++ b/fs/xfs/xfs_inode.c
> @@ -2030,6 +2030,8 @@ xfs_iunlink(
> ASSERT(VFS_I(ip)->i_mode != 0);
> ASSERT(xfs_verify_ino(mp, ip->i_ino));
>
> + trace_xfs_iunlink(ip);
> +
It's worth noting that current inode events print a global inode number
(i.e., "ino 0x%llx ...") whereas the new iunlink tracepoints from
previous patches print an agno/agino combination. I haven't looked at
the actual trace output from an unlink with these changes yet, but I do
wonder if there's value in having a more consistent format. Hm?
Brian
> agno = XFS_INO_TO_AGNO(mp, ip->i_ino);
> agino = XFS_INO_TO_AGINO(mp, ip->i_ino);
> bucket_index = agino % XFS_AGI_UNLINKED_BUCKETS;
> @@ -2199,6 +2201,8 @@ xfs_iunlink_remove(
> short bucket_index;
> int error;
>
> + trace_xfs_iunlink_remove(ip);
> +
> if (!xfs_verify_ino(mp, ip->i_ino))
> return -EFSCORRUPTED;
>
> diff --git a/fs/xfs/xfs_trace.h b/fs/xfs/xfs_trace.h
> index fbec8f0e1a9a..22d4729143b5 100644
> --- a/fs/xfs/xfs_trace.h
> +++ b/fs/xfs/xfs_trace.h
> @@ -3423,6 +3423,9 @@ TRACE_EVENT(xfs_iunlink_update_dinode,
> __entry->new_ptr)
> );
>
> +DEFINE_INODE_EVENT(xfs_iunlink);
> +DEFINE_INODE_EVENT(xfs_iunlink_remove);
> +
> #endif /* _TRACE_XFS_H */
>
> #undef TRACE_INCLUDE_PATH
>
next prev parent reply other threads:[~2019-02-01 19:01 UTC|newest]
Thread overview: 42+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-01-31 23:17 [PATCH 0/8] xfs: incore unlinked list Darrick J. Wong
2019-01-31 23:17 ` [PATCH 1/8] xfs: clean up iunlink functions Darrick J. Wong
2019-02-01 8:01 ` Christoph Hellwig
2019-02-02 19:15 ` Darrick J. Wong
2019-01-31 23:18 ` [PATCH 2/8] xfs: track unlinked inode counts in per-ag data Darrick J. Wong
2019-02-01 18:59 ` Brian Foster
2019-02-01 19:33 ` Darrick J. Wong
2019-02-02 16:14 ` Christoph Hellwig
2019-02-02 19:28 ` Darrick J. Wong
2019-01-31 23:18 ` [PATCH 3/8] xfs: refactor AGI unlinked bucket updates Darrick J. Wong
2019-02-01 19:00 ` Brian Foster
2019-02-02 19:50 ` Darrick J. Wong
2019-02-02 16:21 ` Christoph Hellwig
2019-02-02 19:51 ` Darrick J. Wong
2019-01-31 23:18 ` [PATCH 4/8] xfs: strengthen AGI unlinked inode bucket pointer checks Darrick J. Wong
2019-02-01 19:00 ` Brian Foster
2019-02-02 16:22 ` Christoph Hellwig
2019-01-31 23:18 ` [PATCH 5/8] xfs: refactor inode unlinked pointer update functions Darrick J. Wong
2019-02-01 19:01 ` Brian Foster
2019-02-02 22:00 ` Darrick J. Wong
2019-02-02 16:27 ` Christoph Hellwig
2019-02-02 20:29 ` Darrick J. Wong
2019-01-31 23:18 ` [PATCH 6/8] xfs: hoist unlinked list search and mapping to a separate function Darrick J. Wong
2019-02-01 19:01 ` Brian Foster
2019-02-02 20:46 ` Darrick J. Wong
2019-02-04 13:18 ` Brian Foster
2019-02-04 16:31 ` Darrick J. Wong
2019-02-02 16:30 ` Christoph Hellwig
2019-02-02 20:42 ` Darrick J. Wong
2019-02-02 16:51 ` Christoph Hellwig
2019-01-31 23:18 ` [PATCH 7/8] xfs: add tracepoints for high level iunlink operations Darrick J. Wong
2019-02-01 19:01 ` Brian Foster [this message]
2019-02-01 19:14 ` Darrick J. Wong
2019-01-31 23:18 ` [PATCH 8/8] xfs: cache unlinked pointers in an rhashtable Darrick J. Wong
2019-02-01 8:03 ` Christoph Hellwig
2019-02-01 23:59 ` Dave Chinner
2019-02-02 4:31 ` Darrick J. Wong
2019-02-02 16:07 ` Christoph Hellwig
2019-02-01 19:29 ` Brian Foster
2019-02-01 19:40 ` Darrick J. Wong
2019-02-02 17:01 ` Christoph Hellwig
2019-02-01 7:57 ` [PATCH 0/8] xfs: incore unlinked list Christoph Hellwig
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