ocfs2: Remove masklog ML_RESERVATIONS.

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

Signed-off-by: Tao Ma <boyu.mt@taobao.com>

diff --git a/fs/ocfs2/cluster/masklog.c b/fs/ocfs2/cluster/masklog.c
index ef140ab..39f2a46 100644 (file)
--- a/fs/ocfs2/cluster/masklog.c
+++ b/fs/ocfs2/cluster/masklog.c
@@ -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),

diff --git a/fs/ocfs2/cluster/masklog.h b/fs/ocfs2/cluster/masklog.h
index f574b16..c36b4d8 100644 (file)
--- a/fs/ocfs2/cluster/masklog.h
+++ b/fs/ocfs2/cluster/masklog.h
@@ -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 */

diff --git a/fs/ocfs2/ocfs2_trace.h b/fs/ocfs2/ocfs2_trace.h
index 0fc2840..1c040fc 100644 (file)
--- a/fs/ocfs2/ocfs2_trace.h
+++ b/fs/ocfs2/ocfs2_trace.h
@@ -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 */

diff --git a/fs/ocfs2/reservations.c b/fs/ocfs2/reservations.c
index 3e78db3..41ffd36 100644 (file)
--- 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);