From: Allison Henderson <allison.henderson@oracle.com>
To: linux-xfs@vger.kernel.org
Subject: [PATCH v22 17/27] xfsprogs: Add state machine tracepoints
Date: Mon, 26 Jul 2021 23:18:54 -0700 [thread overview]
Message-ID: <20210727061904.11084-18-allison.henderson@oracle.com> (raw)
In-Reply-To: <20210727061904.11084-1-allison.henderson@oracle.com>
Source kernel commit: fbc8d6bb875915e0afd8ff6cd4364b368a6f894f
This is a quick patch to add a new tracepoint: xfs_das_state_return. We
use this to track when ever a new state is set or -EAGAIN is returned
Signed-off-by: Allison Henderson <allison.henderson@oracle.com>
Reviewed-by: Darrick J. Wong <djwong@kernel.org>
---
include/xfs_trace.h | 6 ++++++
libxfs/xfs_attr.c | 28 ++++++++++++++++++++++++++--
libxfs/xfs_attr_remote.c | 1 +
3 files changed, 33 insertions(+), 2 deletions(-)
diff --git a/include/xfs_trace.h b/include/xfs_trace.h
index a847b50..2169c27 100644
--- a/include/xfs_trace.h
+++ b/include/xfs_trace.h
@@ -312,4 +312,10 @@
#define trace_xfs_perag_get_tag(a,b,c,d) ((c) = (c))
#define trace_xfs_perag_put(a,b,c,d) ((c) = (c))
+#define trace_xfs_attr_sf_addname_return(a,b) ((void) 0)
+#define trace_xfs_attr_set_iter_return(a,b) ((void) 0)
+#define trace_xfs_attr_node_addname_return(a,b) ((void) 0)
+#define trace_xfs_attr_remove_iter_return(a,b) ((void) 0)
+#define trace_xfs_attr_rmtval_remove_return(a,b) ((void) 0)
+
#endif /* __TRACE_H__ */
diff --git a/libxfs/xfs_attr.c b/libxfs/xfs_attr.c
index 84b88f9..6380cae 100644
--- a/libxfs/xfs_attr.c
+++ b/libxfs/xfs_attr.c
@@ -335,6 +335,7 @@ xfs_attr_sf_addname(
* the attr fork to leaf format and will restart with the leaf
* add.
*/
+ trace_xfs_attr_sf_addname_return(XFS_DAS_UNINIT, args->dp);
dac->flags |= XFS_DAC_DEFER_FINISH;
return -EAGAIN;
}
@@ -394,6 +395,8 @@ xfs_attr_set_iter(
* handling code below
*/
dac->flags |= XFS_DAC_DEFER_FINISH;
+ trace_xfs_attr_set_iter_return(
+ dac->dela_state, args->dp);
return -EAGAIN;
} else if (error) {
return error;
@@ -418,6 +421,7 @@ xfs_attr_set_iter(
dac->dela_state = XFS_DAS_FOUND_NBLK;
}
+ trace_xfs_attr_set_iter_return(dac->dela_state, args->dp);
return -EAGAIN;
case XFS_DAS_FOUND_LBLK:
/*
@@ -445,6 +449,8 @@ xfs_attr_set_iter(
error = xfs_attr_rmtval_set_blk(dac);
if (error)
return error;
+ trace_xfs_attr_set_iter_return(dac->dela_state,
+ args->dp);
return -EAGAIN;
}
@@ -479,6 +485,7 @@ xfs_attr_set_iter(
* series.
*/
dac->dela_state = XFS_DAS_FLIP_LFLAG;
+ trace_xfs_attr_set_iter_return(dac->dela_state, args->dp);
return -EAGAIN;
case XFS_DAS_FLIP_LFLAG:
/*
@@ -496,6 +503,9 @@ xfs_attr_set_iter(
dac->dela_state = XFS_DAS_RM_LBLK;
if (args->rmtblkno) {
error = __xfs_attr_rmtval_remove(dac);
+ if (error == -EAGAIN)
+ trace_xfs_attr_set_iter_return(
+ dac->dela_state, args->dp);
if (error)
return error;
@@ -549,6 +559,8 @@ xfs_attr_set_iter(
error = xfs_attr_rmtval_set_blk(dac);
if (error)
return error;
+ trace_xfs_attr_set_iter_return(
+ dac->dela_state, args->dp);
return -EAGAIN;
}
@@ -584,6 +596,7 @@ xfs_attr_set_iter(
* series
*/
dac->dela_state = XFS_DAS_FLIP_NFLAG;
+ trace_xfs_attr_set_iter_return(dac->dela_state, args->dp);
return -EAGAIN;
case XFS_DAS_FLIP_NFLAG:
@@ -603,6 +616,10 @@ xfs_attr_set_iter(
dac->dela_state = XFS_DAS_RM_NBLK;
if (args->rmtblkno) {
error = __xfs_attr_rmtval_remove(dac);
+ if (error == -EAGAIN)
+ trace_xfs_attr_set_iter_return(
+ dac->dela_state, args->dp);
+
if (error)
return error;
@@ -1183,6 +1200,8 @@ xfs_attr_node_addname(
* this point.
*/
dac->flags |= XFS_DAC_DEFER_FINISH;
+ trace_xfs_attr_node_addname_return(
+ dac->dela_state, args->dp);
return -EAGAIN;
}
@@ -1429,10 +1448,13 @@ xfs_attr_remove_iter(
* blocks are removed.
*/
error = __xfs_attr_rmtval_remove(dac);
- if (error == -EAGAIN)
+ if (error == -EAGAIN) {
+ trace_xfs_attr_remove_iter_return(
+ dac->dela_state, args->dp);
return error;
- else if (error)
+ } else if (error) {
goto out;
+ }
/*
* Refill the state structure with buffers (the prior
@@ -1473,6 +1495,8 @@ xfs_attr_remove_iter(
dac->flags |= XFS_DAC_DEFER_FINISH;
dac->dela_state = XFS_DAS_RM_SHRINK;
+ trace_xfs_attr_remove_iter_return(
+ dac->dela_state, args->dp);
return -EAGAIN;
}
diff --git a/libxfs/xfs_attr_remote.c b/libxfs/xfs_attr_remote.c
index d474ad7..137e569 100644
--- a/libxfs/xfs_attr_remote.c
+++ b/libxfs/xfs_attr_remote.c
@@ -695,6 +695,7 @@ __xfs_attr_rmtval_remove(
*/
if (!done) {
dac->flags |= XFS_DAC_DEFER_FINISH;
+ trace_xfs_attr_rmtval_remove_return(dac->dela_state, args->dp);
return -EAGAIN;
}
--
2.7.4
next prev parent reply other threads:[~2021-07-27 6:19 UTC|newest]
Thread overview: 29+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-07-27 6:18 [PATCH v22 00/27] Delayed Attributes Allison Henderson
2021-07-27 6:18 ` [PATCH v22 01/27] xfsprogs: Reverse apply 72b97ea40d Allison Henderson
2021-07-27 6:18 ` [PATCH v22 02/27] xfsprogs: Add xfs_attr_node_remove_name Allison Henderson
2021-07-27 6:18 ` [PATCH v22 03/27] xfsprogs: Refactor xfs_attr_set_shortform Allison Henderson
2021-07-27 6:18 ` [PATCH v22 04/27] xfsprogs: Separate xfs_attr_node_addname and xfs_attr_node_addname_clear_incomplete Allison Henderson
2021-07-27 6:18 ` [PATCH v22 05/27] xfsprogs: Add helper xfs_attr_node_addname_find_attr Allison Henderson
2021-07-27 6:18 ` [PATCH v22 06/27] xfsprogs: Hoist xfs_attr_node_addname Allison Henderson
2021-07-27 6:18 ` [PATCH v22 07/27] xfsprogs: Hoist xfs_attr_leaf_addname Allison Henderson
2021-07-27 6:18 ` [PATCH v22 08/27] xfsprogs: Hoist node transaction handling Allison Henderson
2021-07-27 6:18 ` [PATCH v22 09/27] xfsprogs: Add delay ready attr remove routines Allison Henderson
2021-07-27 6:18 ` [PATCH v22 10/27] xfsprogs: Add delay ready attr set routines Allison Henderson
2021-07-27 6:18 ` [PATCH v22 11/27] xfsprogs: Remove xfs_attr_rmtval_set Allison Henderson
2021-07-27 6:18 ` [PATCH v22 12/27] xfsprogs: Clean up xfs_attr_node_addname_clear_incomplete Allison Henderson
2021-07-27 6:18 ` [PATCH v22 13/27] xfsprogs: Fix default ASSERT in xfs_attr_set_iter Allison Henderson
2021-07-27 6:18 ` [PATCH v22 14/27] xfsprogs: Make attr name schemes consistent Allison Henderson
2021-07-27 6:18 ` [PATCH v22 15/27] xfs: allow setting and clearing of log incompat feature flags Allison Henderson
2021-07-27 6:18 ` [PATCH v22 16/27] xfsprogs: Return from xfs_attr_set_iter if there are no more rmtblks to process Allison Henderson
2021-07-27 6:18 ` Allison Henderson [this message]
2021-07-27 6:18 ` [PATCH v22 18/27] xfsprogs: Rename __xfs_attr_rmtval_remove Allison Henderson
2021-07-27 6:18 ` [PATCH v22 19/27] xfsprogs: Set up infrastructure for deferred attribute operations Allison Henderson
2021-07-27 6:18 ` [PATCH v22 20/27] xfsprogs: Implement attr logging and replay Allison Henderson
2021-07-27 6:18 ` [PATCH v22 21/27] RFC xfsprogs: Skip flip flags for delayed attrs Allison Henderson
2021-07-27 6:18 ` [PATCH v22 22/27] xfsprogs: Add xfs_attr_set_deferred and xfs_attr_remove_deferred Allison Henderson
2021-07-27 6:19 ` [PATCH v22 23/27] xfsprogs: Remove unused xfs_attr_*_args Allison Henderson
2021-07-27 6:19 ` [PATCH v22 24/27] xfsprogs: Add delayed attributes error tag Allison Henderson
2021-07-27 6:19 ` [PATCH v22 25/27] xfsprogs: Merge xfs_delattr_context into xfs_attr_item Allison Henderson
2021-07-27 6:19 ` [PATCH v22 26/27] xfsprogs: Add helper function xfs_attr_leaf_addname Allison Henderson
2021-07-27 6:19 ` [PATCH v22 27/27] xfsprogs: Add log item printing for ATTRI and ATTRD Allison Henderson
2021-07-28 19:41 ` Darrick J. Wong
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