Signed-off-by: Christoph Hellwig <hch@xxxxxx>
---
fs/xfs/xfs_filestream.c | 29 +++++++-----------------
fs/xfs/xfs_filestream.h | 1 +
fs/xfs/xfs_trace.c | 1 +
fs/xfs/xfs_trace.h | 58 +++++++++++++++++++++++++++++++++++++++++++++++
4 files changed, 68 insertions(+), 21 deletions(-)
diff --git a/fs/xfs/xfs_filestream.c b/fs/xfs/xfs_filestream.c
index c8a8840..8ec81be 100644
--- a/fs/xfs/xfs_filestream.c
+++ b/fs/xfs/xfs_filestream.c
@@ -33,12 +33,6 @@
#include "xfs_filestream.h"
#include "xfs_trace.h"
-#define TRACE_AG_SCAN(mp, ag, ag2)
-#define TRACE_AG_PICK1(mp, max_ag, maxfree)
-#define TRACE_AG_PICK2(mp, ag, ag2, cnt, free, scan, flag)
-#define TRACE_FREE(mp, ip, pip, ag, cnt)
-#define TRACE_LOOKUP(mp, ip, pip, ag, cnt)
-
struct xfs_fstrm_item {
struct xfs_mru_cache_elem mru;
struct xfs_inode *ip;
@@ -87,7 +81,7 @@ enum xfs_fstrm_alloc {
* the cache that reference per-ag array elements that have since been
* reallocated.
*/
-static int
+int
xfs_filestream_peek_ag(
xfs_mount_t *mp,
xfs_agnumber_t agno)
@@ -136,8 +130,7 @@ xfs_fstrm_free_func(
xfs_filestream_put_ag(item->ip->i_mount, item->ag);
- TRACE_FREE(mp, ip, NULL, item->ag,
- xfs_filestream_peek_ag(mp, item->ag));
+ trace_xfs_filestream_free(item->ip, item->ag);
kmem_free(item);
}
@@ -157,9 +150,8 @@ xfs_filestream_pick_ag(
struct xfs_mount *mp = ip->i_mount;
struct xfs_fstrm_item *item;
struct xfs_perag *pag;
- xfs_extlen_t longest, free, minfree, maxfree = 0;
+ xfs_extlen_t longest, free = 0, minfree, maxfree = 0;
xfs_agnumber_t ag, max_ag = NULLAGNUMBER;
- int streams, max_streams;
int err, trylock, nscan;
ASSERT(S_ISDIR(ip->i_d.di_mode));
@@ -174,8 +166,9 @@ xfs_filestream_pick_ag(
trylock = XFS_ALLOC_FLAG_TRYLOCK;
for (nscan = 0; 1; nscan++) {
+ trace_xfs_filestream_scan(ip, ag);
+
pag = xfs_perag_get(mp, ag);
- TRACE_AG_SCAN(mp, ag, atomic_read(&pag->pagf_fstrms));
if (!pag->pagf_init) {
err = xfs_alloc_pagf_init(mp, NULL, ag, trylock);
@@ -192,7 +185,6 @@ xfs_filestream_pick_ag(
/* Keep track of the AG with the most free blocks. */
if (pag->pagf_freeblks > maxfree) {
maxfree = pag->pagf_freeblks;
- max_streams = atomic_read(&pag->pagf_fstrms);
max_ag = ag;
}
@@ -215,7 +207,6 @@ xfs_filestream_pick_ag(
/* Break out, retaining the reference on the AG. */
free = pag->pagf_freeblks;
- streams = atomic_read(&pag->pagf_fstrms);
xfs_perag_put(pag);
*agp = ag;
break;
@@ -251,20 +242,18 @@ next_ag:
*/
if (max_ag != NULLAGNUMBER) {
xfs_filestream_get_ag(mp, max_ag);
- TRACE_AG_PICK1(mp, max_ag, maxfree);
- streams = max_streams;
free = maxfree;
*agp = max_ag;
break;
}
/* take AG 0 if none matched */
- TRACE_AG_PICK1(mp, max_ag, maxfree);
+ trace_xfs_filestream_pick(ip, *agp, free, nscan);
*agp = 0;
return 0;
}
- TRACE_AG_PICK2(mp, startag, *agp, streams, free, nscan, flags);
+ trace_xfs_filestream_pick(ip, *agp, free, nscan);
if (*agp == NULLAGNUMBER)
return 0;
@@ -330,7 +319,6 @@ xfs_filestream_lookup_ag(
struct xfs_mount *mp = ip->i_mount;
struct xfs_inode *pip = NULL;
xfs_agnumber_t startag, ag = NULLAGNUMBER;
- int ref = 0;
struct xfs_mru_cache_elem *mru;
ASSERT(S_ISREG(ip->i_d.di_mode));
@@ -344,8 +332,7 @@ xfs_filestream_lookup_ag(
ag = container_of(mru, struct xfs_fstrm_item, mru)->ag;
xfs_mru_cache_done(mp->m_filestream);
- ref = xfs_filestream_peek_ag(ip->i_mount, ag);
- TRACE_LOOKUP(mp, ip, pip, ag, ref);
+ trace_xfs_filestream_lookup(ip, ag);
goto out;
}
diff --git a/fs/xfs/xfs_filestream.h b/fs/xfs/xfs_filestream.h
index 2de853e..2ef4340 100644
--- a/fs/xfs/xfs_filestream.h
+++ b/fs/xfs/xfs_filestream.h
@@ -27,6 +27,7 @@ void xfs_filestream_unmount(struct xfs_mount *mp);
void xfs_filestream_deassociate(struct xfs_inode *ip);
xfs_agnumber_t xfs_filestream_lookup_ag(struct xfs_inode *ip);
int xfs_filestream_new_ag(struct xfs_bmalloca *ap, xfs_agnumber_t *agp);
+int xfs_filestream_peek_ag(struct xfs_mount *mp, xfs_agnumber_t agno);
static inline int
xfs_inode_is_filestream(
diff --git a/fs/xfs/xfs_trace.c b/fs/xfs/xfs_trace.c
index dee3279..1e85bcd 100644
--- a/fs/xfs/xfs_trace.c
+++ b/fs/xfs/xfs_trace.c
@@ -46,6 +46,7 @@
#include "xfs_log_recover.h"
#include "xfs_inode_item.h"
#include "xfs_bmap_btree.h"
+#include "xfs_filestream.h"
/*
* We include this last to have the helpers above available for the trace
diff --git a/fs/xfs/xfs_trace.h b/fs/xfs/xfs_trace.h
index 65d8c79..6910458 100644
--- a/fs/xfs/xfs_trace.h
+++ b/fs/xfs/xfs_trace.h
@@ -538,6 +538,64 @@ DEFINE_BUF_ITEM_EVENT(xfs_trans_bhold_release);
DEFINE_BUF_ITEM_EVENT(xfs_trans_binval);
DEFINE_BUF_ITEM_EVENT(xfs_trans_buf_ordered);
+DECLARE_EVENT_CLASS(xfs_filestream_class,
+ TP_PROTO(struct xfs_inode *ip, xfs_agnumber_t agno),
+ TP_ARGS(ip, agno),
+ TP_STRUCT__entry(
+ __field(dev_t, dev)
+ __field(xfs_ino_t, ino)
+ __field(xfs_agnumber_t, agno)
+ __field(int, streams)
+ ),
+ TP_fast_assign(
+ __entry->dev = VFS_I(ip)->i_sb->s_dev;
+ __entry->ino = ip->i_ino;
+ __entry->agno = agno;
+ __entry->streams = xfs_filestream_peek_ag(ip->i_mount, agno);
+ ),
+ TP_printk("dev %d:%d ino 0x%llx agno %u streams %d",
+ MAJOR(__entry->dev), MINOR(__entry->dev),
+ __entry->ino,
+ __entry->agno,
+ __entry->streams)
+)
+#define DEFINE_FILESTREAM_EVENT(name) \
+DEFINE_EVENT(xfs_filestream_class, name, \
+ TP_PROTO(struct xfs_inode *ip, xfs_agnumber_t agno), \
+ TP_ARGS(ip, agno))
+DEFINE_FILESTREAM_EVENT(xfs_filestream_free);
+DEFINE_FILESTREAM_EVENT(xfs_filestream_lookup);
+DEFINE_FILESTREAM_EVENT(xfs_filestream_scan);
+
+TRACE_EVENT(xfs_filestream_pick,
+ TP_PROTO(struct xfs_inode *ip, xfs_agnumber_t agno,
+ xfs_extlen_t free, int nscan),
+ TP_ARGS(ip, agno, free, nscan),
+ TP_STRUCT__entry(
+ __field(dev_t, dev)
+ __field(xfs_ino_t, ino)
+ __field(xfs_agnumber_t, agno)
+ __field(int, streams)
+ __field(xfs_extlen_t, free)
+ __field(int, nscan)
+ ),
+ TP_fast_assign(
+ __entry->dev = VFS_I(ip)->i_sb->s_dev;
+ __entry->ino = ip->i_ino;
+ __entry->agno = agno;
+ __entry->streams = xfs_filestream_peek_ag(ip->i_mount, agno);
+ __entry->free = free;
+ __entry->nscan = nscan;
+ ),
+ TP_printk("dev %d:%d ino 0x%llx agno %u streams %d free %d nscan %d",
+ MAJOR(__entry->dev), MINOR(__entry->dev),
+ __entry->ino,
+ __entry->agno,
+ __entry->streams,
+ __entry->free,
+ __entry->nscan)
+);
+
DECLARE_EVENT_CLASS(xfs_lock_class,
TP_PROTO(struct xfs_inode *ip, unsigned lock_flags,
unsigned long caller_ip),
--
1.7.10.4
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