{
struct f2fs_inode_info *fi = F2FS_I(inode);
struct inmem_pages *new;
+ int err;
+
+ SetPagePrivate(page);
new = f2fs_kmem_cache_alloc(inmem_entry_slab, GFP_NOFS);
/* add atomic page indices to the list */
new->page = page;
INIT_LIST_HEAD(&new->list);
-
+retry:
/* increase reference count with clean state */
mutex_lock(&fi->inmem_lock);
+ err = radix_tree_insert(&fi->inmem_root, page->index, new);
+ if (err == -EEXIST) {
+ mutex_unlock(&fi->inmem_lock);
+ kmem_cache_free(inmem_entry_slab, new);
+ return;
+ } else if (err) {
+ mutex_unlock(&fi->inmem_lock);
+ goto retry;
+ }
get_page(page);
list_add_tail(&new->list, &fi->inmem_pages);
+ inc_page_count(F2FS_I_SB(inode), F2FS_INMEM_PAGES);
+ mutex_unlock(&fi->inmem_lock);
+}
+
+void invalidate_inmem_page(struct inode *inode, struct page *page)
+{
+ struct f2fs_inode_info *fi = F2FS_I(inode);
+ struct inmem_pages *cur;
+
+ mutex_lock(&fi->inmem_lock);
+ cur = radix_tree_lookup(&fi->inmem_root, page->index);
+ if (cur) {
+ radix_tree_delete(&fi->inmem_root, cur->page->index);
+ f2fs_put_page(cur->page, 0);
+ list_del(&cur->list);
+ kmem_cache_free(inmem_entry_slab, cur);
+ dec_page_count(F2FS_I_SB(inode), F2FS_INMEM_PAGES);
+ }
mutex_unlock(&fi->inmem_lock);
}
.rw = WRITE_SYNC,
};
- f2fs_balance_fs(sbi);
+ /*
+ * The abort is true only when f2fs_evict_inode is called.
+ * Basically, the f2fs_evict_inode doesn't produce any data writes, so
+ * that we don't need to call f2fs_balance_fs.
+ * Otherwise, f2fs_gc in f2fs_balance_fs can wait forever until this
+ * inode becomes free by iget_locked in f2fs_iget.
+ */
+ if (!abort)
+ f2fs_balance_fs(sbi);
+
f2fs_lock_op(sbi);
mutex_lock(&fi->inmem_lock);
do_write_data_page(cur->page, &fio);
submit_bio = true;
}
+ radix_tree_delete(&fi->inmem_root, cur->page->index);
f2fs_put_page(cur->page, 1);
list_del(&cur->list);
kmem_cache_free(inmem_entry_slab, cur);
+ dec_page_count(F2FS_I_SB(inode), F2FS_INMEM_PAGES);
}
if (submit_bio)
f2fs_submit_merged_bio(sbi, DATA, WRITE);
{
/* check the # of cached NAT entries and prefree segments */
if (try_to_free_nats(sbi, NAT_ENTRY_PER_BLOCK) ||
- excess_prefree_segs(sbi))
+ excess_prefree_segs(sbi) ||
+ available_free_memory(sbi, INO_ENTRIES))
f2fs_sync_fs(sbi->sb, true);
}
}
}
-static void add_discard_addrs(struct f2fs_sb_info *sbi, struct cp_control *cpc)
+static void __add_discard_entry(struct f2fs_sb_info *sbi,
+ struct cp_control *cpc, unsigned int start, unsigned int end)
{
struct list_head *head = &SM_I(sbi)->discard_list;
- struct discard_entry *new;
+ struct discard_entry *new, *last;
+
+ if (!list_empty(head)) {
+ last = list_last_entry(head, struct discard_entry, list);
+ if (START_BLOCK(sbi, cpc->trim_start) + start ==
+ last->blkaddr + last->len) {
+ last->len += end - start;
+ goto done;
+ }
+ }
+
+ new = f2fs_kmem_cache_alloc(discard_entry_slab, GFP_NOFS);
+ INIT_LIST_HEAD(&new->list);
+ new->blkaddr = START_BLOCK(sbi, cpc->trim_start) + start;
+ new->len = end - start;
+ list_add_tail(&new->list, head);
+done:
+ SM_I(sbi)->nr_discards += end - start;
+ cpc->trimmed += end - start;
+}
+
+static void add_discard_addrs(struct f2fs_sb_info *sbi, struct cp_control *cpc)
+{
int entries = SIT_VBLOCK_MAP_SIZE / sizeof(unsigned long);
int max_blocks = sbi->blocks_per_seg;
struct seg_entry *se = get_seg_entry(sbi, cpc->trim_start);
}
mutex_unlock(&dirty_i->seglist_lock);
- new = f2fs_kmem_cache_alloc(discard_entry_slab, GFP_NOFS);
- INIT_LIST_HEAD(&new->list);
- new->blkaddr = START_BLOCK(sbi, cpc->trim_start);
- new->len = sbi->blocks_per_seg;
- list_add_tail(&new->list, head);
- SM_I(sbi)->nr_discards += sbi->blocks_per_seg;
- cpc->trimmed += sbi->blocks_per_seg;
+ __add_discard_entry(sbi, cpc, 0, sbi->blocks_per_seg);
return;
}
/* SIT_VBLOCK_MAP_SIZE should be multiple of sizeof(unsigned long) */
for (i = 0; i < entries; i++)
- dmap[i] = (cur_map[i] ^ ckpt_map[i]) & ckpt_map[i];
+ dmap[i] = ~(cur_map[i] | ckpt_map[i]);
while (force || SM_I(sbi)->nr_discards <= SM_I(sbi)->max_discards) {
start = __find_rev_next_bit(dmap, max_blocks, end + 1);
if (end - start < cpc->trim_minlen)
continue;
- new = f2fs_kmem_cache_alloc(discard_entry_slab, GFP_NOFS);
- INIT_LIST_HEAD(&new->list);
- new->blkaddr = START_BLOCK(sbi, cpc->trim_start) + start;
- new->len = end - start;
- cpc->trimmed += end - start;
-
- list_add_tail(&new->list, head);
- SM_I(sbi)->nr_discards += end - start;
+ __add_discard_entry(sbi, cpc, start, end);
}
}
/* Update valid block bitmap */
if (del > 0) {
- if (f2fs_set_bit(offset, se->cur_valid_map))
+ if (f2fs_test_and_set_bit(offset, se->cur_valid_map))
f2fs_bug_on(sbi, 1);
} else {
- if (!f2fs_clear_bit(offset, se->cur_valid_map))
+ if (!f2fs_test_and_clear_bit(offset, se->cur_valid_map))
f2fs_bug_on(sbi, 1);
}
if (!f2fs_test_bit(offset, se->ckpt_valid_map))
range->len < sbi->blocksize)
return -EINVAL;
+ cpc.trimmed = 0;
if (end <= MAIN_BLKADDR(sbi))
goto out;
cpc.trim_start = start_segno;
cpc.trim_end = end_segno;
cpc.trim_minlen = range->minlen >> sbi->log_blocksize;
- cpc.trimmed = 0;
/* do checkpoint to issue discard commands safely */
+ mutex_lock(&sbi->gc_mutex);
write_checkpoint(sbi, &cpc);
+ mutex_unlock(&sbi->gc_mutex);
out:
range->len = cpc.trimmed << sbi->log_blocksize;
return 0;
else
return CURSEG_COLD_DATA;
} else {
- if (IS_DNODE(page) && !is_cold_node(page))
- return CURSEG_HOT_NODE;
+ if (IS_DNODE(page) && is_cold_node(page))
+ return CURSEG_WARM_NODE;
else
return CURSEG_COLD_NODE;
}
static struct page *get_current_sit_page(struct f2fs_sb_info *sbi,
unsigned int segno)
{
- struct sit_info *sit_i = SIT_I(sbi);
- unsigned int offset = SIT_BLOCK_OFFSET(segno);
- block_t blk_addr = sit_i->sit_base_addr + offset;
-
- check_seg_range(sbi, segno);
-
- /* calculate sit block address */
- if (f2fs_test_bit(offset, sit_i->sit_bitmap))
- blk_addr += sit_i->sit_blocks;
-
- return get_meta_page(sbi, blk_addr);
+ return get_meta_page(sbi, current_sit_addr(sbi, segno));
}
static struct page *get_next_sit_page(struct f2fs_sb_info *sbi,
* #2, flush sit entries to sit page.
*/
list_for_each_entry_safe(ses, tmp, head, set_list) {
- struct page *page;
+ struct page *page = NULL;
struct f2fs_sit_block *raw_sit = NULL;
unsigned int start_segno = ses->start_segno;
unsigned int end = min(start_segno + SIT_ENTRY_PER_BLOCK,
goto fail;
sit_entry_set_slab = f2fs_kmem_cache_create("sit_entry_set",
- sizeof(struct nat_entry_set));
+ sizeof(struct sit_entry_set));
if (!sit_entry_set_slab)
goto destory_discard_entry;
projects / firefly-linux-kernel-4.4.55.git / blobdiff