From: Goldwyn Rodrigues <rgoldwyn@suse.de>
To: linux-btrfs@vger.kernel.org
Cc: linux-fsdevel@vger.kernel.org, Goldwyn Rodrigues <rgoldwyn@suse.com>
Subject: [PATCH 12/15] btrfs: trace functions for btrfs_iomap_begin/end
Date: Tue, 26 Mar 2019 14:02:58 -0500 [thread overview]
Message-ID: <20190326190301.32365-13-rgoldwyn@suse.de> (raw)
In-Reply-To: <20190326190301.32365-1-rgoldwyn@suse.de>
From: Goldwyn Rodrigues <rgoldwyn@suse.com>
This is for debug purposes only and can be skipped.
Signed-off-by: Goldwyn Rodrigues <rgoldwyn@suse.com>
---
fs/btrfs/dax.c | 3 +++
include/trace/events/btrfs.h | 56 ++++++++++++++++++++++++++++++++++++++++++++
2 files changed, 59 insertions(+)
diff --git a/fs/btrfs/dax.c b/fs/btrfs/dax.c
index 9488cae0f8b4..7900b5773829 100644
--- a/fs/btrfs/dax.c
+++ b/fs/btrfs/dax.c
@@ -27,6 +27,8 @@ static int btrfs_iomap_begin(struct inode *inode, loff_t pos,
struct extent_map *em;
struct btrfs_fs_info *fs_info = btrfs_sb(inode->i_sb);
+ trace_btrfs_iomap_begin(inode, pos, length, flags);
+
em = btrfs_get_extent(BTRFS_I(inode), NULL, 0, pos, length, 0);
if (flags & IOMAP_WRITE) {
@@ -103,6 +105,7 @@ static int btrfs_iomap_end(struct inode *inode, loff_t pos,
{
struct btrfs_iomap *bi = iomap->private;
u64 wend;
+ trace_btrfs_iomap_end(inode, pos, length, written, flags);
if (!bi)
return 0;
diff --git a/include/trace/events/btrfs.h b/include/trace/events/btrfs.h
index ab1cc33adbac..8779e5789a7c 100644
--- a/include/trace/events/btrfs.h
+++ b/include/trace/events/btrfs.h
@@ -1850,6 +1850,62 @@ DEFINE_EVENT(btrfs__block_group, btrfs_skip_unused_block_group,
TP_ARGS(bg_cache)
);
+TRACE_EVENT(btrfs_iomap_begin,
+
+ TP_PROTO(const struct inode *inode, loff_t pos, loff_t length, int flags),
+
+ TP_ARGS(inode, pos, length, flags),
+
+ TP_STRUCT__entry_btrfs(
+ __field( u64, ino )
+ __field( u64, pos )
+ __field( u64, length )
+ __field( int, flags )
+ ),
+
+ TP_fast_assign_btrfs(btrfs_sb(inode->i_sb),
+ __entry->ino = btrfs_ino(BTRFS_I(inode));
+ __entry->pos = pos;
+ __entry->length = length;
+ __entry->flags = flags;
+ ),
+
+ TP_printk_btrfs("ino=%llu pos=%llu len=%llu flags=0x%x",
+ __entry->ino,
+ __entry->pos,
+ __entry->length,
+ __entry->flags)
+);
+
+TRACE_EVENT(btrfs_iomap_end,
+
+ TP_PROTO(const struct inode *inode, loff_t pos, loff_t length, loff_t written, int flags),
+
+ TP_ARGS(inode, pos, length, written, flags),
+
+ TP_STRUCT__entry_btrfs(
+ __field( u64, ino )
+ __field( u64, pos )
+ __field( u64, length )
+ __field( u64, written )
+ __field( int, flags )
+ ),
+
+ TP_fast_assign_btrfs(btrfs_sb(inode->i_sb),
+ __entry->ino = btrfs_ino(BTRFS_I(inode));
+ __entry->pos = pos;
+ __entry->length = length;
+ __entry->written = written;
+ __entry->flags = flags;
+ ),
+
+ TP_printk_btrfs("ino=%llu pos=%llu len=%llu written=%llu flags=0x%x",
+ __entry->ino,
+ __entry->pos,
+ __entry->length,
+ __entry->written,
+ __entry->flags)
+);
#endif /* _TRACE_BTRFS_H */
/* This part must be outside protection */
--
2.16.4
next prev parent reply other threads:[~2019-03-26 19:03 UTC|newest]
Thread overview: 48+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <20190326190301.32365-1-rgoldwyn@suse.de>
2019-03-26 19:02 ` [PATCH 01/15] btrfs: create a mount option for dax Goldwyn Rodrigues
2019-03-26 19:10 ` Matthew Wilcox
2019-03-27 11:00 ` Goldwyn Rodrigues
2019-03-27 12:00 ` Matthew Wilcox
2019-03-27 12:26 ` Goldwyn Rodrigues
2019-03-27 23:31 ` Goldwyn Rodrigues
2019-03-27 17:38 ` Adam Borowski
2019-03-28 14:49 ` David Sterba
2019-03-28 17:28 ` David Sterba
2019-03-28 17:57 ` Darrick J. Wong
2019-04-01 20:43 ` Goldwyn Rodrigues
2019-03-26 19:02 ` [PATCH 02/15] btrfs: Carve out btrfs_get_extent_map_write() out of btrfs_get_blocks_write() Goldwyn Rodrigues
2019-03-26 19:02 ` [PATCH 03/15] btrfs: basic dax read Goldwyn Rodrigues
2019-03-26 19:02 ` [PATCH 04/15] dax: Introduce IOMAP_F_COW for copy-on-write Goldwyn Rodrigues
2019-03-27 17:54 ` Darrick J. Wong
2019-03-27 18:58 ` Goldwyn Rodrigues
2019-03-28 14:45 ` Darrick J. Wong
2019-04-01 4:38 ` Dave Chinner
2019-04-01 21:41 ` Goldwyn Rodrigues
2019-04-01 23:06 ` Dave Chinner
2019-04-03 1:56 ` Goldwyn Rodrigues
2019-04-03 3:20 ` Dave Chinner
2019-04-07 7:26 ` Christoph Hellwig
2019-03-26 19:02 ` [PATCH 05/15] btrfs: return whether extent is nocow or not Goldwyn Rodrigues
2019-03-31 18:42 ` Nikolay Borisov
2019-03-26 19:02 ` [PATCH 06/15] btrfs: Rename __endio_write_update_ordered() to btrfs_update_ordered_extent() Goldwyn Rodrigues
2019-03-26 19:02 ` [PATCH 07/15] btrfs: add dax write support Goldwyn Rodrigues
2019-03-28 14:53 ` Darrick J. Wong
2019-04-01 20:39 ` Goldwyn Rodrigues
2019-03-26 19:02 ` [PATCH 08/15] dax: add dax_iomap_cow to copy a mmap page before writing Goldwyn Rodrigues
2019-03-28 15:41 ` Darrick J. Wong
2019-03-26 19:02 ` [PATCH 09/15] btrfs: add dax mmap support Goldwyn Rodrigues
2019-03-28 15:45 ` Darrick J. Wong
2019-03-26 19:02 ` [PATCH 10/15] btrfs: Add dax specific address_space_operations Goldwyn Rodrigues
2019-03-26 19:02 ` [PATCH 11/15] fs: dedup file range to use a compare function Goldwyn Rodrigues
2019-03-28 17:04 ` Darrick J. Wong
2019-04-01 20:36 ` Goldwyn Rodrigues
2019-03-26 19:02 ` Goldwyn Rodrigues [this message]
2019-03-26 19:02 ` [PATCH 13/15] btrfs: handle dax page zeroing Goldwyn Rodrigues
2019-03-26 19:03 ` [PATCH 14/15] btrfs: Disable dax-based defrag and send Goldwyn Rodrigues
2019-03-26 19:03 ` [PATCH 15/15] btrfs: Writeprotect mmap pages on snapshot Goldwyn Rodrigues
2019-03-28 15:48 ` Darrick J. Wong
2019-03-26 19:09 ` [PATCH v2 00/15] btrfs dax support Goldwyn Rodrigues
2019-03-27 20:14 ` Adam Borowski
2019-03-27 23:26 ` Goldwyn Rodrigues
2019-03-28 10:24 ` [PATCH] btrfs: allow MAP_SYNC mmap Adam Borowski
2019-03-28 10:42 ` Adam Borowski
2019-04-01 20:08 ` Goldwyn Rodrigues
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