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ocfs2: Remove masklog ML_RESERVATIONS.

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Remove mlog(0) from fs/ocfs2/reservations.c and the masklog RESERVATIONS.

Signed-off-by: Tao Ma <boyu.mt@taobao.com>
This commit is contained in:
Tao Ma 2011-02-23 22:10:56 +08:00
parent 402b418311
commit 2661836e0c
4 changed files with 142 additions and 33 deletions
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1
fs/ocfs2/cluster/masklog.c
View File

@ -104,7 +104,6 @@ static struct mlog_attribute mlog_attrs[MLOG_MAX_BITS] = {
define_mask(EXPORT),
define_mask(QUOTA),
define_mask(BASTS),
define_mask(RESERVATIONS),
define_mask(CLUSTER),
define_mask(ERROR),
define_mask(NOTICE),

1
fs/ocfs2/cluster/masklog.h
View File

@ -106,7 +106,6 @@
#define ML_EXPORT 0x0000000010000000ULL /* ocfs2 export operations */
#define ML_QUOTA 0x0000000040000000ULL /* ocfs2 quota operations */
#define ML_BASTS 0x0000000100000000ULL /* dlmglue asts and basts */
#define ML_RESERVATIONS 0x0000000200000000ULL /* ocfs2 alloc reservations */
#define ML_CLUSTER 0x0000000400000000ULL /* cluster stack */
/* bits that are infrequently given and frequently matched in the high word */

116
fs/ocfs2/ocfs2_trace.h
View File

@ -1809,6 +1809,122 @@ DEFINE_OCFS2_ULL_UINT_UINT_EVENT(ocfs2_reflink_xattr_buckets);
DEFINE_OCFS2_ULL_UINT_EVENT(ocfs2_reflink_xattr_rec);
/* End of trace events for fs/ocfs2/xattr.c. */
/* Trace events for fs/ocfs2/reservations.c. */
DEFINE_OCFS2_UINT_UINT_EVENT(ocfs2_resv_insert);
DEFINE_OCFS2_ULL_UINT_UINT_UINT_EVENT(ocfs2_resmap_find_free_bits_begin);
DEFINE_OCFS2_UINT_UINT_EVENT(ocfs2_resmap_find_free_bits_end);
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_OCFS2_UINT_UINT_EVENT(ocfs2_resv_find_window_prev);
DEFINE_OCFS2_INT_INT_EVENT(ocfs2_resv_find_window_next);
DEFINE_OCFS2_UINT_UINT_UINT_EVENT(ocfs2_cannibalize_resv_begin);
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_OCFS2_UINT_UINT_EVENT(ocfs2_resmap_resv_bits);
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 */

57
fs/ocfs2/reservations.c
View File

@ -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);