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d0c1562 xfs: event tracing support
b3460b3 xfs: change the xfs_iext_insert / xfs_iext_remove
febec43 xfs: cleanup bmap extent state macros
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commit d0c156230fa510e7e091e60d4c9c3ea7bd96edf6
Author: Christoph Hellwig <hch@xxxxxxxxxxxxx>
Date: Mon Dec 14 23:14:59 2009 +0000
xfs: event tracing support
Convert the old xfs tracing support that could only be used with the
out of tree kdb and xfsidbg patches to use the generic event tracer.
To use it make sure CONFIG_EVENT_TRACING is enabled and then enable
all xfs trace channels by:
echo 1 > /sys/kernel/debug/tracing/events/xfs/enable
or alternatively enable single events by just doing the same in one
event subdirectory, e.g.
echo 1 > /sys/kernel/debug/tracing/events/xfs/xfs_ihold/enable
or set more complex filters, etc. In Documentation/trace/events.txt
all this is desctribed in more detail. To reads the events do a
cat /sys/kernel/debug/tracing/trace
Compared to the last posting this patch converts the tracing mostly to
the one tracepoint per callsite model that other users of the new
tracing facility also employ. This allows a very fine-grained control
of the tracing, a cleaner output of the traces and also enables the
perf tool to use each tracepoint as a virtual performance counter,
allowing us to e.g. count how often certain workloads git various
spots in XFS. Take a look at
http://lwn.net/Articles/346470/
for some examples.
Also the btree tracing isn't included at all yet, as it will require
additional core tracing features not in mainline yet, I plan to
deliver it later.
And the really nice thing about this patch is that it actually removes
many lines of code while adding this nice functionality:
fs/xfs/Makefile | 8
fs/xfs/linux-2.6/xfs_acl.c | 1
fs/xfs/linux-2.6/xfs_aops.c | 52 -
fs/xfs/linux-2.6/xfs_aops.h | 2
fs/xfs/linux-2.6/xfs_buf.c | 117 +--
fs/xfs/linux-2.6/xfs_buf.h | 33
fs/xfs/linux-2.6/xfs_fs_subr.c | 3
fs/xfs/linux-2.6/xfs_ioctl.c | 1
fs/xfs/linux-2.6/xfs_ioctl32.c | 1
fs/xfs/linux-2.6/xfs_iops.c | 1
fs/xfs/linux-2.6/xfs_linux.h | 1
fs/xfs/linux-2.6/xfs_lrw.c | 87 --
fs/xfs/linux-2.6/xfs_lrw.h | 45 -
fs/xfs/linux-2.6/xfs_super.c | 104 ---
fs/xfs/linux-2.6/xfs_super.h | 7
fs/xfs/linux-2.6/xfs_sync.c | 1
fs/xfs/linux-2.6/xfs_trace.c | 75 ++
fs/xfs/linux-2.6/xfs_trace.h | 1369
+++++++++++++++++++++++++++++++++++++++++
fs/xfs/linux-2.6/xfs_vnode.h | 4
fs/xfs/quota/xfs_dquot.c | 110 ---
fs/xfs/quota/xfs_dquot.h | 21
fs/xfs/quota/xfs_qm.c | 40 -
fs/xfs/quota/xfs_qm_syscalls.c | 4
fs/xfs/support/ktrace.c | 323 ---------
fs/xfs/support/ktrace.h | 85 --
fs/xfs/xfs.h | 16
fs/xfs/xfs_ag.h | 14
fs/xfs/xfs_alloc.c | 230 +-----
fs/xfs/xfs_alloc.h | 27
fs/xfs/xfs_alloc_btree.c | 1
fs/xfs/xfs_attr.c | 107 ---
fs/xfs/xfs_attr.h | 10
fs/xfs/xfs_attr_leaf.c | 14
fs/xfs/xfs_attr_sf.h | 40 -
fs/xfs/xfs_bmap.c | 507 +++------------
fs/xfs/xfs_bmap.h | 49 -
fs/xfs/xfs_bmap_btree.c | 6
fs/xfs/xfs_btree.c | 5
fs/xfs/xfs_btree_trace.h | 17
fs/xfs/xfs_buf_item.c | 87 --
fs/xfs/xfs_buf_item.h | 20
fs/xfs/xfs_da_btree.c | 3
fs/xfs/xfs_da_btree.h | 7
fs/xfs/xfs_dfrag.c | 2
fs/xfs/xfs_dir2.c | 8
fs/xfs/xfs_dir2_block.c | 20
fs/xfs/xfs_dir2_leaf.c | 21
fs/xfs/xfs_dir2_node.c | 27
fs/xfs/xfs_dir2_sf.c | 26
fs/xfs/xfs_dir2_trace.c | 216 ------
fs/xfs/xfs_dir2_trace.h | 72 --
fs/xfs/xfs_filestream.c | 8
fs/xfs/xfs_fsops.c | 2
fs/xfs/xfs_iget.c | 111 ---
fs/xfs/xfs_inode.c | 67 --
fs/xfs/xfs_inode.h | 76 --
fs/xfs/xfs_inode_item.c | 5
fs/xfs/xfs_iomap.c | 85 --
fs/xfs/xfs_iomap.h | 8
fs/xfs/xfs_log.c | 181 +----
fs/xfs/xfs_log_priv.h | 20
fs/xfs/xfs_log_recover.c | 1
fs/xfs/xfs_mount.c | 2
fs/xfs/xfs_quota.h | 8
fs/xfs/xfs_rename.c | 1
fs/xfs/xfs_rtalloc.c | 1
fs/xfs/xfs_rw.c | 3
fs/xfs/xfs_trans.h | 47 +
fs/xfs/xfs_trans_buf.c | 62 -
fs/xfs/xfs_vnodeops.c | 8
70 files changed, 2151 insertions(+), 2592 deletions(-)
Signed-off-by: Christoph Hellwig <hch@xxxxxx>
Signed-off-by: Alex Elder <aelder@xxxxxxx>
commit b3460b3bf6a017a2cb0a67e4fe74c0b6dc25ddd7
Author: Christoph Hellwig <hch@xxxxxxxxxxxxx>
Date: Wed Nov 25 00:00:21 2009 +0000
xfs: change the xfs_iext_insert / xfs_iext_remove
Change the xfs_iext_insert / xfs_iext_remove prototypes to pass more
information which will allow pushing the trace points from the callers
into those functions. This includes folding the whichfork information
into the state variable to minimize the addition stack footprint.
Signed-off-by: Christoph Hellwig <hch@xxxxxx>
Signed-off-by: Alex Elder <aelder@xxxxxxx>
commit febec432aeeaa5edead1c4a6db3b75e2402b0e9d
Author: Christoph Hellwig <hch@xxxxxxxxxxxxx>
Date: Wed Nov 25 00:00:19 2009 +0000
xfs: cleanup bmap extent state macros
Cleanup the extent state macros in the bmap code to use one common set of
flags that we can pass to the tracing code later and remove a lot of the
macro obsfucation.
Signed-off-by: Christoph Hellwig <hch@xxxxxx>
Signed-off-by: Alex Elder <aelder@xxxxxxx>
-----------------------------------------------------------------------
Summary of changes:
fs/xfs/Makefile | 8 +-
fs/xfs/linux-2.6/xfs_acl.c | 1 +
fs/xfs/linux-2.6/xfs_aops.c | 52 +--
fs/xfs/linux-2.6/xfs_aops.h | 2 +
fs/xfs/linux-2.6/xfs_buf.c | 117 ++---
fs/xfs/linux-2.6/xfs_buf.h | 33 +-
fs/xfs/linux-2.6/xfs_fs_subr.c | 3 +
fs/xfs/linux-2.6/xfs_ioctl.c | 1 +
fs/xfs/linux-2.6/xfs_ioctl32.c | 1 +
fs/xfs/linux-2.6/xfs_iops.c | 1 +
fs/xfs/linux-2.6/xfs_linux.h | 1 -
fs/xfs/linux-2.6/xfs_lrw.c | 87 +---
fs/xfs/linux-2.6/xfs_lrw.h | 45 --
fs/xfs/linux-2.6/xfs_super.c | 104 +---
fs/xfs/linux-2.6/xfs_super.h | 7 -
fs/xfs/linux-2.6/xfs_sync.c | 1 +
fs/xfs/linux-2.6/xfs_trace.c | 75 +++
fs/xfs/linux-2.6/xfs_trace.h | 1369 ++++++++++++++++++++++++++++++++++++++++
fs/xfs/linux-2.6/xfs_vnode.h | 4 +
fs/xfs/quota/xfs_dquot.c | 110 +---
fs/xfs/quota/xfs_dquot.h | 21 -
fs/xfs/quota/xfs_qm.c | 40 +-
fs/xfs/quota/xfs_qm_syscalls.c | 4 +-
fs/xfs/support/ktrace.c | 323 ----------
fs/xfs/support/ktrace.h | 85 ---
fs/xfs/xfs.h | 16 -
fs/xfs/xfs_ag.h | 14 +
fs/xfs/xfs_alloc.c | 230 ++------
fs/xfs/xfs_alloc.h | 27 +-
fs/xfs/xfs_alloc_btree.c | 1 +
fs/xfs/xfs_attr.c | 107 +---
fs/xfs/xfs_attr.h | 10 +
fs/xfs/xfs_attr_leaf.c | 14 +-
fs/xfs/xfs_attr_sf.h | 40 --
fs/xfs/xfs_bmap.c | 942 +++++++++-------------------
fs/xfs/xfs_bmap.h | 58 ++-
fs/xfs/xfs_bmap_btree.c | 6 -
fs/xfs/xfs_btree.c | 5 +-
fs/xfs/xfs_btree_trace.h | 17 -
fs/xfs/xfs_buf_item.c | 87 +--
fs/xfs/xfs_buf_item.h | 20 +-
fs/xfs/xfs_da_btree.c | 3 +-
fs/xfs/xfs_da_btree.h | 7 +
fs/xfs/xfs_dfrag.c | 2 +-
fs/xfs/xfs_dir2.c | 8 +-
fs/xfs/xfs_dir2_block.c | 20 +-
fs/xfs/xfs_dir2_leaf.c | 21 +-
fs/xfs/xfs_dir2_node.c | 27 +-
fs/xfs/xfs_dir2_sf.c | 26 +-
fs/xfs/xfs_dir2_trace.c | 216 -------
fs/xfs/xfs_dir2_trace.h | 72 ---
fs/xfs/xfs_filestream.c | 8 +-
fs/xfs/xfs_fsops.c | 2 +
fs/xfs/xfs_iget.c | 111 +---
fs/xfs/xfs_inode.c | 79 +--
fs/xfs/xfs_inode.h | 82 +--
fs/xfs/xfs_inode_item.c | 5 +-
fs/xfs/xfs_iomap.c | 85 +---
fs/xfs/xfs_iomap.h | 8 +
fs/xfs/xfs_log.c | 181 ++----
fs/xfs/xfs_log_priv.h | 20 +-
fs/xfs/xfs_log_recover.c | 1 +
fs/xfs/xfs_mount.c | 2 +
fs/xfs/xfs_quota.h | 8 +
fs/xfs/xfs_rename.c | 1 +
fs/xfs/xfs_rtalloc.c | 1 +
fs/xfs/xfs_rw.c | 3 +-
fs/xfs/xfs_trans.h | 47 ++
fs/xfs/xfs_trans_buf.c | 62 +-
fs/xfs/xfs_vnodeops.c | 8 +-
70 files changed, 2369 insertions(+), 2836 deletions(-)
create mode 100644 fs/xfs/linux-2.6/xfs_trace.c
create mode 100644 fs/xfs/linux-2.6/xfs_trace.h
delete mode 100644 fs/xfs/support/ktrace.c
delete mode 100644 fs/xfs/support/ktrace.h
delete mode 100644 fs/xfs/xfs_dir2_trace.c
delete mode 100644 fs/xfs/xfs_dir2_trace.h
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