aboutsummaryrefslogtreecommitdiffstats
path: root/fs/ocfs2/uptodate.c
diff options
context:
space:
mode:
Diffstat (limited to 'fs/ocfs2/uptodate.c')
-rw-r--r--fs/ocfs2/uptodate.c73
1 files changed, 36 insertions, 37 deletions
diff --git a/fs/ocfs2/uptodate.c b/fs/ocfs2/uptodate.c
index a0a120e82b97..52eaf33d346f 100644
--- a/fs/ocfs2/uptodate.c
+++ b/fs/ocfs2/uptodate.c
@@ -54,14 +54,13 @@
54#include <linux/buffer_head.h> 54#include <linux/buffer_head.h>
55#include <linux/rbtree.h> 55#include <linux/rbtree.h>
56 56
57#define MLOG_MASK_PREFIX ML_UPTODATE
58
59#include <cluster/masklog.h> 57#include <cluster/masklog.h>
60 58
61#include "ocfs2.h" 59#include "ocfs2.h"
62 60
63#include "inode.h" 61#include "inode.h"
64#include "uptodate.h" 62#include "uptodate.h"
63#include "ocfs2_trace.h"
65 64
66struct ocfs2_meta_cache_item { 65struct ocfs2_meta_cache_item {
67 struct rb_node c_node; 66 struct rb_node c_node;
@@ -152,8 +151,8 @@ static unsigned int ocfs2_purge_copied_metadata_tree(struct rb_root *root)
152 while ((node = rb_last(root)) != NULL) { 151 while ((node = rb_last(root)) != NULL) {
153 item = rb_entry(node, struct ocfs2_meta_cache_item, c_node); 152 item = rb_entry(node, struct ocfs2_meta_cache_item, c_node);
154 153
155 mlog(0, "Purge item %llu\n", 154 trace_ocfs2_purge_copied_metadata_tree(
156 (unsigned long long) item->c_block); 155 (unsigned long long) item->c_block);
157 156
158 rb_erase(&item->c_node, root); 157 rb_erase(&item->c_node, root);
159 kmem_cache_free(ocfs2_uptodate_cachep, item); 158 kmem_cache_free(ocfs2_uptodate_cachep, item);
@@ -180,9 +179,9 @@ void ocfs2_metadata_cache_purge(struct ocfs2_caching_info *ci)
180 tree = !(ci->ci_flags & OCFS2_CACHE_FL_INLINE); 179 tree = !(ci->ci_flags & OCFS2_CACHE_FL_INLINE);
181 to_purge = ci->ci_num_cached; 180 to_purge = ci->ci_num_cached;
182 181
183 mlog(0, "Purge %u %s items from Owner %llu\n", to_purge, 182 trace_ocfs2_metadata_cache_purge(
184 tree ? "array" : "tree", 183 (unsigned long long)ocfs2_metadata_cache_owner(ci),
185 (unsigned long long)ocfs2_metadata_cache_owner(ci)); 184 to_purge, tree);
186 185
187 /* If we're a tree, save off the root so that we can safely 186 /* If we're a tree, save off the root so that we can safely
188 * initialize the cache. We do the work to free tree members 187 * initialize the cache. We do the work to free tree members
@@ -249,10 +248,10 @@ static int ocfs2_buffer_cached(struct ocfs2_caching_info *ci,
249 248
250 ocfs2_metadata_cache_lock(ci); 249 ocfs2_metadata_cache_lock(ci);
251 250
252 mlog(0, "Owner %llu, query block %llu (inline = %u)\n", 251 trace_ocfs2_buffer_cached_begin(
253 (unsigned long long)ocfs2_metadata_cache_owner(ci), 252 (unsigned long long)ocfs2_metadata_cache_owner(ci),
254 (unsigned long long) bh->b_blocknr, 253 (unsigned long long) bh->b_blocknr,
255 !!(ci->ci_flags & OCFS2_CACHE_FL_INLINE)); 254 !!(ci->ci_flags & OCFS2_CACHE_FL_INLINE));
256 255
257 if (ci->ci_flags & OCFS2_CACHE_FL_INLINE) 256 if (ci->ci_flags & OCFS2_CACHE_FL_INLINE)
258 index = ocfs2_search_cache_array(ci, bh->b_blocknr); 257 index = ocfs2_search_cache_array(ci, bh->b_blocknr);
@@ -261,7 +260,7 @@ static int ocfs2_buffer_cached(struct ocfs2_caching_info *ci,
261 260
262 ocfs2_metadata_cache_unlock(ci); 261 ocfs2_metadata_cache_unlock(ci);
263 262
264 mlog(0, "index = %d, item = %p\n", index, item); 263 trace_ocfs2_buffer_cached_end(index, item);
265 264
266 return (index != -1) || (item != NULL); 265 return (index != -1) || (item != NULL);
267} 266}
@@ -306,8 +305,9 @@ static void ocfs2_append_cache_array(struct ocfs2_caching_info *ci,
306{ 305{
307 BUG_ON(ci->ci_num_cached >= OCFS2_CACHE_INFO_MAX_ARRAY); 306 BUG_ON(ci->ci_num_cached >= OCFS2_CACHE_INFO_MAX_ARRAY);
308 307
309 mlog(0, "block %llu takes position %u\n", (unsigned long long) block, 308 trace_ocfs2_append_cache_array(
310 ci->ci_num_cached); 309 (unsigned long long)ocfs2_metadata_cache_owner(ci),
310 (unsigned long long)block, ci->ci_num_cached);
311 311
312 ci->ci_cache.ci_array[ci->ci_num_cached] = block; 312 ci->ci_cache.ci_array[ci->ci_num_cached] = block;
313 ci->ci_num_cached++; 313 ci->ci_num_cached++;
@@ -324,8 +324,9 @@ static void __ocfs2_insert_cache_tree(struct ocfs2_caching_info *ci,
324 struct rb_node **p = &ci->ci_cache.ci_tree.rb_node; 324 struct rb_node **p = &ci->ci_cache.ci_tree.rb_node;
325 struct ocfs2_meta_cache_item *tmp; 325 struct ocfs2_meta_cache_item *tmp;
326 326
327 mlog(0, "Insert block %llu num = %u\n", (unsigned long long) block, 327 trace_ocfs2_insert_cache_tree(
328 ci->ci_num_cached); 328 (unsigned long long)ocfs2_metadata_cache_owner(ci),
329 (unsigned long long)block, ci->ci_num_cached);
329 330
330 while(*p) { 331 while(*p) {
331 parent = *p; 332 parent = *p;
@@ -389,9 +390,9 @@ static void ocfs2_expand_cache(struct ocfs2_caching_info *ci,
389 tree[i] = NULL; 390 tree[i] = NULL;
390 } 391 }
391 392
392 mlog(0, "Expanded %llu to a tree cache: flags 0x%x, num = %u\n", 393 trace_ocfs2_expand_cache(
393 (unsigned long long)ocfs2_metadata_cache_owner(ci), 394 (unsigned long long)ocfs2_metadata_cache_owner(ci),
394 ci->ci_flags, ci->ci_num_cached); 395 ci->ci_flags, ci->ci_num_cached);
395} 396}
396 397
397/* Slow path function - memory allocation is necessary. See the 398/* Slow path function - memory allocation is necessary. See the
@@ -405,9 +406,9 @@ static void __ocfs2_set_buffer_uptodate(struct ocfs2_caching_info *ci,
405 struct ocfs2_meta_cache_item *tree[OCFS2_CACHE_INFO_MAX_ARRAY] = 406 struct ocfs2_meta_cache_item *tree[OCFS2_CACHE_INFO_MAX_ARRAY] =
406 { NULL, }; 407 { NULL, };
407 408
408 mlog(0, "Owner %llu, block %llu, expand = %d\n", 409 trace_ocfs2_set_buffer_uptodate(
409 (unsigned long long)ocfs2_metadata_cache_owner(ci), 410 (unsigned long long)ocfs2_metadata_cache_owner(ci),
410 (unsigned long long)block, expand_tree); 411 (unsigned long long)block, expand_tree);
411 412
412 new = kmem_cache_alloc(ocfs2_uptodate_cachep, GFP_NOFS); 413 new = kmem_cache_alloc(ocfs2_uptodate_cachep, GFP_NOFS);
413 if (!new) { 414 if (!new) {
@@ -433,7 +434,6 @@ static void __ocfs2_set_buffer_uptodate(struct ocfs2_caching_info *ci,
433 434
434 ocfs2_metadata_cache_lock(ci); 435 ocfs2_metadata_cache_lock(ci);
435 if (ocfs2_insert_can_use_array(ci)) { 436 if (ocfs2_insert_can_use_array(ci)) {
436 mlog(0, "Someone cleared the tree underneath us\n");
437 /* Ok, items were removed from the cache in between 437 /* Ok, items were removed from the cache in between
438 * locks. Detect this and revert back to the fast path */ 438 * locks. Detect this and revert back to the fast path */
439 ocfs2_append_cache_array(ci, block); 439 ocfs2_append_cache_array(ci, block);
@@ -490,9 +490,9 @@ void ocfs2_set_buffer_uptodate(struct ocfs2_caching_info *ci,
490 if (ocfs2_buffer_cached(ci, bh)) 490 if (ocfs2_buffer_cached(ci, bh))
491 return; 491 return;
492 492
493 mlog(0, "Owner %llu, inserting block %llu\n", 493 trace_ocfs2_set_buffer_uptodate_begin(
494 (unsigned long long)ocfs2_metadata_cache_owner(ci), 494 (unsigned long long)ocfs2_metadata_cache_owner(ci),
495 (unsigned long long)bh->b_blocknr); 495 (unsigned long long)bh->b_blocknr);
496 496
497 /* No need to recheck under spinlock - insertion is guarded by 497 /* No need to recheck under spinlock - insertion is guarded by
498 * co_io_lock() */ 498 * co_io_lock() */
@@ -542,8 +542,9 @@ static void ocfs2_remove_metadata_array(struct ocfs2_caching_info *ci,
542 BUG_ON(index >= ci->ci_num_cached); 542 BUG_ON(index >= ci->ci_num_cached);
543 BUG_ON(!ci->ci_num_cached); 543 BUG_ON(!ci->ci_num_cached);
544 544
545 mlog(0, "remove index %d (num_cached = %u\n", index, 545 trace_ocfs2_remove_metadata_array(
546 ci->ci_num_cached); 546 (unsigned long long)ocfs2_metadata_cache_owner(ci),
547 index, ci->ci_num_cached);
547 548
548 ci->ci_num_cached--; 549 ci->ci_num_cached--;
549 550
@@ -559,8 +560,9 @@ static void ocfs2_remove_metadata_array(struct ocfs2_caching_info *ci,
559static void ocfs2_remove_metadata_tree(struct ocfs2_caching_info *ci, 560static void ocfs2_remove_metadata_tree(struct ocfs2_caching_info *ci,
560 struct ocfs2_meta_cache_item *item) 561 struct ocfs2_meta_cache_item *item)
561{ 562{
562 mlog(0, "remove block %llu from tree\n", 563 trace_ocfs2_remove_metadata_tree(
563 (unsigned long long) item->c_block); 564 (unsigned long long)ocfs2_metadata_cache_owner(ci),
565 (unsigned long long)item->c_block);
564 566
565 rb_erase(&item->c_node, &ci->ci_cache.ci_tree); 567 rb_erase(&item->c_node, &ci->ci_cache.ci_tree);
566 ci->ci_num_cached--; 568 ci->ci_num_cached--;
@@ -573,10 +575,10 @@ static void ocfs2_remove_block_from_cache(struct ocfs2_caching_info *ci,
573 struct ocfs2_meta_cache_item *item = NULL; 575 struct ocfs2_meta_cache_item *item = NULL;
574 576
575 ocfs2_metadata_cache_lock(ci); 577 ocfs2_metadata_cache_lock(ci);
576 mlog(0, "Owner %llu, remove %llu, items = %u, array = %u\n", 578 trace_ocfs2_remove_block_from_cache(
577 (unsigned long long)ocfs2_metadata_cache_owner(ci), 579 (unsigned long long)ocfs2_metadata_cache_owner(ci),
578 (unsigned long long) block, ci->ci_num_cached, 580 (unsigned long long) block, ci->ci_num_cached,
579 ci->ci_flags & OCFS2_CACHE_FL_INLINE); 581 ci->ci_flags);
580 582
581 if (ci->ci_flags & OCFS2_CACHE_FL_INLINE) { 583 if (ci->ci_flags & OCFS2_CACHE_FL_INLINE) {
582 index = ocfs2_search_cache_array(ci, block); 584 index = ocfs2_search_cache_array(ci, block);
@@ -626,9 +628,6 @@ int __init init_ocfs2_uptodate_cache(void)
626 if (!ocfs2_uptodate_cachep) 628 if (!ocfs2_uptodate_cachep)
627 return -ENOMEM; 629 return -ENOMEM;
628 630
629 mlog(0, "%u inlined cache items per inode.\n",
630 OCFS2_CACHE_INFO_MAX_ARRAY);
631
632 return 0; 631 return 0;
633} 632}
634 633