[Ocfs2-devel] [PATCH 22/34] ocfs2: Remove masklog ML_RESERVATIONS.
Tao Ma
tm at tao.ma
Wed Dec 22 23:31:05 PST 2010
From: Tao Ma <boyu.mt at taobao.com>
Remove mlog(0) from fs/ocfs2/reservations.c and the masklog RESERVATIONS.
Signed-off-by: Tao Ma <boyu.mt at taobao.com>
---
fs/ocfs2/cluster/masklog.c | 1 -
fs/ocfs2/cluster/masklog.h | 1 -
fs/ocfs2/ocfs2_trace.h | 170 ++++++++++++++++++++++++++++++++++++++++++++
fs/ocfs2/reservations.c | 57 +++++++--------
4 files changed, 196 insertions(+), 33 deletions(-)
diff --git a/fs/ocfs2/cluster/masklog.c b/fs/ocfs2/cluster/masklog.c
index d31c5f1..64bf0b2 100644
--- a/fs/ocfs2/cluster/masklog.c
+++ b/fs/ocfs2/cluster/masklog.c
@@ -107,7 +107,6 @@ static struct mlog_attribute mlog_attrs[MLOG_MAX_BITS] = {
define_mask(ERROR),
define_mask(NOTICE),
define_mask(KTHREAD),
- define_mask(RESERVATIONS),
};
static struct attribute *mlog_attr_ptrs[MLOG_MAX_BITS] = {NULL, };
diff --git a/fs/ocfs2/cluster/masklog.h b/fs/ocfs2/cluster/masklog.h
index 736d18c..57e12a8 100644
--- a/fs/ocfs2/cluster/masklog.h
+++ b/fs/ocfs2/cluster/masklog.h
@@ -110,7 +110,6 @@
#define ML_ERROR 0x0000000100000000ULL /* sent to KERN_ERR */
#define ML_NOTICE 0x0000000200000000ULL /* setn to KERN_NOTICE */
#define ML_KTHREAD 0x0000000400000000ULL /* kernel thread activity */
-#define ML_RESERVATIONS 0x0000000800000000ULL /* ocfs2 alloc reservations */
#define ML_CLUSTER 0x0000001000000000ULL /* cluster stack */
#define MLOG_INITIAL_AND_MASK (ML_ERROR|ML_NOTICE)
diff --git a/fs/ocfs2/ocfs2_trace.h b/fs/ocfs2/ocfs2_trace.h
index 676e75d..b0bb9a6 100644
--- a/fs/ocfs2/ocfs2_trace.h
+++ b/fs/ocfs2/ocfs2_trace.h
@@ -2806,6 +2806,176 @@ DEFINE_EVENT(ocfs2__ull_uint, ocfs2_reflink_xattr_rec,
TP_ARGS(blkno, len)
);
/* End of trace events for fs/ocfs2/xattr.c. */
+
+/* Trace events for fs/ocfs2/reservations.c. */
+DEFINE_EVENT(ocfs2__uint_uint, ocfs2_resv_insert,
+
+ TP_PROTO(unsigned int r_start, unsigned int r_len),
+
+ TP_ARGS(r_start, r_len)
+);
+
+DEFINE_EVENT(ocfs2__ull_uint_uint_uint, ocfs2_resmap_find_free_bits_begin,
+
+ TP_PROTO(unsigned long long search_start, unsigned int search_len,
+ unsigned int wanted, unsigned int len),
+
+ TP_ARGS(search_start, search_len, wanted, len)
+);
+
+DEFINE_EVENT(ocfs2__uint_uint, ocfs2_resmap_find_free_bits_end,
+
+ TP_PROTO(unsigned int best_start, unsigned int best_len),
+
+ TP_ARGS(best_start, best_len)
+);
+
+TRACE_EVENT(ocfs2_resv_find_window_begin,
+
+ TP_PROTO(unsigned int r_start, unsigned int r_end, unsigned int goal,
+ unsigned int wanted, int empty_root),
+
+ TP_ARGS(r_start, r_end, goal, wanted, empty_root),
+
+ TP_STRUCT__entry(
+ __field( unsigned int, r_start )
+ __field( unsigned int, r_end )
+ __field( unsigned int, goal )
+ __field( unsigned int, wanted )
+ __field( int, empty_root )
+ ),
+
+ TP_fast_assign(
+ __entry->r_start = r_start;
+ __entry->r_end = r_end;
+ __entry->goal = goal;
+ __entry->wanted = wanted;
+ __entry->empty_root = empty_root;
+ ),
+
+ TP_printk("%u %u %u %u %d", __entry->r_start, __entry->r_end,
+ __entry->goal, __entry->wanted, __entry->empty_root)
+);
+
+DEFINE_EVENT(ocfs2__uint_uint, ocfs2_resv_find_window_prev,
+
+ TP_PROTO(unsigned int r_start, unsigned int r_end),
+
+ TP_ARGS(r_start, r_end)
+);
+
+DEFINE_EVENT(ocfs2__int_int, ocfs2_resv_find_window_next,
+
+ TP_PROTO(int next_start, int next_end),
+
+ TP_ARGS(next_start, next_end)
+);
+
+DEFINE_EVENT(ocfs2__uint_uint_uint, ocfs2_cannibalize_resv_begin,
+
+ TP_PROTO(unsigned int start, unsigned int len, unsigned int end),
+
+ TP_ARGS(start, len, end)
+);
+
+TRACE_EVENT(ocfs2_cannibalize_resv_end,
+
+ TP_PROTO(unsigned int start, unsigned int end, unsigned int len,
+ unsigned int last_start, unsigned int last_len),
+
+ TP_ARGS(start, end, len, last_start, last_len),
+
+ TP_STRUCT__entry(
+ __field( unsigned int, start )
+ __field( unsigned int, end )
+ __field( unsigned int, len )
+ __field( unsigned int, last_start )
+ __field( unsigned int, last_len )
+ ),
+
+ TP_fast_assign(
+ __entry->start = start;
+ __entry->end = end;
+ __entry->len = len;
+ __entry->last_start = last_start;
+ __entry->last_len = last_len;
+ ),
+
+ TP_printk("%u %u %u %u %u", __entry->start, __entry->end,
+ __entry->len, __entry->last_start, __entry->last_len)
+);
+
+DEFINE_EVENT(ocfs2__uint_uint, ocfs2_resmap_resv_bits,
+
+ TP_PROTO(unsigned int start, unsigned int len),
+
+ TP_ARGS(start, len)
+);
+
+TRACE_EVENT(ocfs2_resmap_claimed_bits_begin,
+
+ TP_PROTO(unsigned int cstart, unsigned int cend, unsigned int clen,
+ unsigned int r_start, unsigned int r_end, unsigned int r_len,
+ unsigned int last_start, unsigned int last_len),
+
+ TP_ARGS(cstart, cend, clen, r_start, r_end,
+ r_len, last_start, last_len),
+
+ TP_STRUCT__entry(
+ __field( unsigned int, cstart )
+ __field( unsigned int, cend )
+ __field( unsigned int, clen )
+ __field( unsigned int, r_start )
+ __field( unsigned int, r_end )
+ __field( unsigned int, r_len )
+ __field( unsigned int, last_start )
+ __field( unsigned int, last_len )
+ ),
+
+ TP_fast_assign(
+ __entry->cstart = cstart;
+ __entry->cend = cend;
+ __entry->clen = clen;
+ __entry->r_start = r_start;
+ __entry->r_end = r_end;
+ __entry->r_len = r_len;
+ __entry->last_start = last_start;
+ __entry->last_len = last_len;
+ ),
+
+ TP_printk("%u %u %u %u %u %u %u %u",
+ __entry->cstart, __entry->cend, __entry->clen,
+ __entry->r_start, __entry->r_end, __entry->r_len,
+ __entry->last_start, __entry->last_len)
+);
+
+TRACE_EVENT(ocfs2_resmap_claimed_bits_end,
+
+ TP_PROTO(unsigned int start, unsigned int end, unsigned int len,
+ unsigned int last_start, unsigned int last_len),
+
+ TP_ARGS(start, end, len, last_start, last_len),
+
+ TP_STRUCT__entry(
+ __field( unsigned int, start )
+ __field( unsigned int, end )
+ __field( unsigned int, len )
+ __field( unsigned int, last_start )
+ __field( unsigned int, last_len )
+ ),
+
+ TP_fast_assign(
+ __entry->start = start;
+ __entry->end = end;
+ __entry->len = len;
+ __entry->last_start = last_start;
+ __entry->last_len = last_len;
+ ),
+
+ TP_printk("%u %u %u %u %u", __entry->start, __entry->end,
+ __entry->len, __entry->last_start, __entry->last_len)
+);
+/* End of trace events for fs/ocfs2/reservations.c. */
#endif /* _TRACE_OCFS2_H */
/* This part must be outside protection */
diff --git a/fs/ocfs2/reservations.c b/fs/ocfs2/reservations.c
index 3e78db3..41ffd36 100644
--- a/fs/ocfs2/reservations.c
+++ b/fs/ocfs2/reservations.c
@@ -30,10 +30,10 @@
#include <linux/bitops.h>
#include <linux/list.h>
-#define MLOG_MASK_PREFIX ML_RESERVATIONS
#include <cluster/masklog.h>
#include "ocfs2.h"
+#include "ocfs2_trace.h"
#ifdef CONFIG_OCFS2_DEBUG_FS
#define OCFS2_CHECK_RESERVATIONS
@@ -321,8 +321,7 @@ static void ocfs2_resv_insert(struct ocfs2_reservation_map *resmap,
assert_spin_locked(&resv_lock);
- mlog(0, "Insert reservation start: %u len: %u\n", new->r_start,
- new->r_len);
+ trace_ocfs2_resv_insert(new->r_start, new->r_len);
while (*p) {
parent = *p;
@@ -423,8 +422,8 @@ static int ocfs2_resmap_find_free_bits(struct ocfs2_reservation_map *resmap,
unsigned int best_start, best_len = 0;
int offset, start, found;
- mlog(0, "Find %u bits within range (%u, len %u) resmap len: %u\n",
- wanted, search_start, search_len, resmap->m_bitmap_len);
+ trace_ocfs2_resmap_find_free_bits_begin(search_start, search_len,
+ wanted, resmap->m_bitmap_len);
found = best_start = best_len = 0;
@@ -463,7 +462,7 @@ static int ocfs2_resmap_find_free_bits(struct ocfs2_reservation_map *resmap,
*rlen = best_len;
*rstart = best_start;
- mlog(0, "Found start: %u len: %u\n", best_start, best_len);
+ trace_ocfs2_resmap_find_free_bits_end(best_start, best_len);
return *rlen;
}
@@ -487,9 +486,8 @@ static void __ocfs2_resv_find_window(struct ocfs2_reservation_map *resmap,
* - our window should be last in all reservations
* - need to make sure we don't go past end of bitmap
*/
-
- mlog(0, "resv start: %u resv end: %u goal: %u wanted: %u\n",
- resv->r_start, ocfs2_resv_end(resv), goal, wanted);
+ trace_ocfs2_resv_find_window_begin(resv->r_start, ocfs2_resv_end(resv),
+ goal, wanted, RB_EMPTY_ROOT(root));
assert_spin_locked(&resv_lock);
@@ -498,9 +496,6 @@ static void __ocfs2_resv_find_window(struct ocfs2_reservation_map *resmap,
* Easiest case - empty tree. We can just take
* whatever window of free bits we want.
*/
-
- mlog(0, "Empty root\n");
-
clen = ocfs2_resmap_find_free_bits(resmap, wanted, goal,
resmap->m_bitmap_len - goal,
&cstart, &clen);
@@ -524,8 +519,6 @@ static void __ocfs2_resv_find_window(struct ocfs2_reservation_map *resmap,
prev_resv = ocfs2_find_resv_lhs(resmap, goal);
if (prev_resv == NULL) {
- mlog(0, "Goal on LHS of leftmost window\n");
-
/*
* A NULL here means that the search code couldn't
* find a window that starts before goal.
@@ -570,13 +563,15 @@ static void __ocfs2_resv_find_window(struct ocfs2_reservation_map *resmap,
next_resv = NULL;
}
+ trace_ocfs2_resv_find_window_prev(prev_resv->r_start,
+ ocfs2_resv_end(prev_resv));
+
prev = &prev_resv->r_node;
/* Now we do a linear search for a window, starting at 'prev_rsv' */
while (1) {
next = rb_next(prev);
if (next) {
- mlog(0, "One more resv found in linear search\n");
next_resv = rb_entry(next,
struct ocfs2_alloc_reservation,
r_node);
@@ -585,7 +580,6 @@ static void __ocfs2_resv_find_window(struct ocfs2_reservation_map *resmap,
gap_end = next_resv->r_start - 1;
gap_len = gap_end - gap_start + 1;
} else {
- mlog(0, "No next node\n");
/*
* We're at the rightmost edge of the
* tree. See if a reservation between this
@@ -596,6 +590,8 @@ static void __ocfs2_resv_find_window(struct ocfs2_reservation_map *resmap,
gap_end = resmap->m_bitmap_len - 1;
}
+ trace_ocfs2_resv_find_window_next(next ? next_resv->r_start: -1,
+ next ? ocfs2_resv_end(next_resv) : -1);
/*
* No need to check this gap if we have already found
* a larger region of free bits.
@@ -654,8 +650,9 @@ static void ocfs2_cannibalize_resv(struct ocfs2_reservation_map *resmap,
lru_resv = list_first_entry(&resmap->m_lru,
struct ocfs2_alloc_reservation, r_lru);
- mlog(0, "lru resv: start: %u len: %u end: %u\n", lru_resv->r_start,
- lru_resv->r_len, ocfs2_resv_end(lru_resv));
+ trace_ocfs2_cannibalize_resv_begin(lru_resv->r_start,
+ lru_resv->r_len,
+ ocfs2_resv_end(lru_resv));
/*
* Cannibalize (some or all) of the target reservation and
@@ -684,10 +681,9 @@ static void ocfs2_cannibalize_resv(struct ocfs2_reservation_map *resmap,
resv->r_len = shrink;
}
- mlog(0, "Reservation now looks like: r_start: %u r_end: %u "
- "r_len: %u r_last_start: %u r_last_len: %u\n",
- resv->r_start, ocfs2_resv_end(resv), resv->r_len,
- resv->r_last_start, resv->r_last_len);
+ trace_ocfs2_cannibalize_resv_end(resv->r_start, ocfs2_resv_end(resv),
+ resv->r_len, resv->r_last_start,
+ resv->r_last_len);
ocfs2_resv_insert(resmap, resv);
}
@@ -748,7 +744,6 @@ int ocfs2_resmap_resv_bits(struct ocfs2_reservation_map *resmap,
if ((resv->r_flags & OCFS2_RESV_FLAG_TMP) || wanted < *clen)
wanted = *clen;
- mlog(0, "empty reservation, find new window\n");
/*
* Try to get a window here. If it works, we must fall
* through and test the bitmap . This avoids some
@@ -757,6 +752,7 @@ int ocfs2_resmap_resv_bits(struct ocfs2_reservation_map *resmap,
* that inode.
*/
ocfs2_resv_find_window(resmap, resv, wanted);
+ trace_ocfs2_resmap_resv_bits(resv->r_start, resv->r_len);
}
BUG_ON(ocfs2_resv_empty(resv));
@@ -813,10 +809,10 @@ void ocfs2_resmap_claimed_bits(struct ocfs2_reservation_map *resmap,
spin_lock(&resv_lock);
- mlog(0, "claim bits: cstart: %u cend: %u clen: %u r_start: %u "
- "r_end: %u r_len: %u, r_last_start: %u r_last_len: %u\n",
- cstart, cend, clen, resv->r_start, ocfs2_resv_end(resv),
- resv->r_len, resv->r_last_start, resv->r_last_len);
+ trace_ocfs2_resmap_claimed_bits_begin(cstart, cend, clen, resv->r_start,
+ ocfs2_resv_end(resv), resv->r_len,
+ resv->r_last_start,
+ resv->r_last_len);
BUG_ON(cstart < resv->r_start);
BUG_ON(cstart > ocfs2_resv_end(resv));
@@ -833,10 +829,9 @@ void ocfs2_resmap_claimed_bits(struct ocfs2_reservation_map *resmap,
if (!ocfs2_resv_empty(resv))
ocfs2_resv_mark_lru(resmap, resv);
- mlog(0, "Reservation now looks like: r_start: %u r_end: %u "
- "r_len: %u r_last_start: %u r_last_len: %u\n",
- resv->r_start, ocfs2_resv_end(resv), resv->r_len,
- resv->r_last_start, resv->r_last_len);
+ trace_ocfs2_resmap_claimed_bits_end(resv->r_start, ocfs2_resv_end(resv),
+ resv->r_len, resv->r_last_start,
+ resv->r_last_len);
ocfs2_check_resmap(resmap);
--
1.7.0.4
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