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authorBrian Foster <bfoster@redhat.com>2013-03-18 10:51:48 -0400
committerBen Myers <bpm@sgi.com>2013-03-22 16:07:56 -0500
commit19cb7e3854c9afe2ee968cbdd92293ec09e43bf3 (patch)
treece82d40276e1d19571770f70d30ca49b1dbaa984 /fs/xfs/xfs_iomap.c
parent76a4202a388690e664668c4f668ee12d709100b3 (diff)
downloadblackbird-op-linux-19cb7e3854c9afe2ee968cbdd92293ec09e43bf3.tar.gz
blackbird-op-linux-19cb7e3854c9afe2ee968cbdd92293ec09e43bf3.zip
xfs: xfs_iomap_prealloc_size() tracepoint
Add a tracepoint to provide some feedback on preallocation size calculation. Signed-off-by: Brian Foster <bfoster@redhat.com> Reviewed-by: Mark Tinguely <tinguely@sgi.com> Signed-off-by: Ben Myers <bpm@sgi.com>
Diffstat (limited to 'fs/xfs/xfs_iomap.c')
-rw-r--r--fs/xfs/xfs_iomap.c3
1 files changed, 3 insertions, 0 deletions
diff --git a/fs/xfs/xfs_iomap.c b/fs/xfs/xfs_iomap.c
index 0a530853b53d..8f8aaee7f379 100644
--- a/fs/xfs/xfs_iomap.c
+++ b/fs/xfs/xfs_iomap.c
@@ -518,6 +518,9 @@ check_writeio:
if (alloc_blocks < mp->m_writeio_blocks)
alloc_blocks = mp->m_writeio_blocks;
+ trace_xfs_iomap_prealloc_size(ip, alloc_blocks, shift,
+ mp->m_writeio_blocks);
+
return alloc_blocks;
}
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