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f2fs: cache: use compress cache
This patch migrates compressed cluster caching from the fake VFS inode page cache (sbi->compress_inode) to compress cache (sbi->compress_blocks). It converts compression caching and decompression paths to use compress cache APIs, uses entry->ino for per-inode invalidation, and removes sbi->compress_inode. Reviewed-by: Zhiguo Niu <zhiguo.niu@unisoc.com> Signed-off-by: Chao Yu <chao@kernel.org> Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
This commit is contained in:
Chao Yu
Jaegeuk Kim
parent
bf452b33bd
commit
6a78d04881
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@ -1893,30 +1893,19 @@ unsigned int f2fs_cluster_blocks_are_contiguous(struct dnode_of_data *dn,
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return compressed ? i - 1 : i;
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}
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const struct address_space_operations f2fs_compress_aops = {
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.release_folio = f2fs_release_folio,
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.invalidate_folio = f2fs_invalidate_folio,
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.migrate_folio = filemap_migrate_folio,
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};
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struct address_space *COMPRESS_MAPPING(struct f2fs_sb_info *sbi)
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{
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return sbi->compress_inode->i_mapping;
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}
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void f2fs_invalidate_compress_pages_range(struct f2fs_sb_info *sbi,
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block_t blkaddr, unsigned int len)
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{
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if (!sbi->compress_inode)
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if (!test_opt(sbi, COMPRESS_CACHE))
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return;
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invalidate_mapping_pages(COMPRESS_MAPPING(sbi), blkaddr, blkaddr + len - 1);
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f2fs_drop_cache_range(COMPRESS_CACHE(sbi), blkaddr, len, false);
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}
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static void f2fs_cache_compressed_page(struct f2fs_sb_info *sbi,
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struct folio *folio, nid_t ino, block_t blkaddr)
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{
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struct folio *cfolio;
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int ret;
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struct f2fs_cached_block *entry;
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if (!test_opt(sbi, COMPRESS_CACHE))
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return;
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@ -1924,52 +1913,48 @@ static void f2fs_cache_compressed_page(struct f2fs_sb_info *sbi,
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if (!f2fs_is_valid_blkaddr(sbi, blkaddr, DATA_GENERIC_ENHANCE_READ))
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return;
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if (!f2fs_available_free_memory(sbi, COMPRESS_PAGE))
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if (!f2fs_available_free_memory(sbi, COMPRESS_BLOCK))
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return;
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cfolio = filemap_get_folio(COMPRESS_MAPPING(sbi), blkaddr);
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if (!IS_ERR(cfolio)) {
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f2fs_folio_put(cfolio, false);
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entry = f2fs_find_cache(COMPRESS_CACHE(sbi), blkaddr,
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F2FS_CACHE_ACCESS);
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if (!IS_ERR(entry)) {
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f2fs_put_cache(entry, false);
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return;
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}
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cfolio = filemap_alloc_folio(__GFP_NOWARN | __GFP_IO, 0, NULL);
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if (!cfolio)
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entry = f2fs_grab_cache(COMPRESS_CACHE(sbi), blkaddr,
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F2FS_CACHE_LOCK_CREATE);
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if (IS_ERR(entry))
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return;
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ret = filemap_add_folio(COMPRESS_MAPPING(sbi), cfolio,
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blkaddr, GFP_NOFS);
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if (ret) {
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f2fs_folio_put(cfolio, false);
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return;
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}
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folio_set_f2fs_data(cfolio, ino);
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memcpy(folio_address(cfolio), folio_address(folio), PAGE_SIZE);
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folio_mark_uptodate(cfolio);
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f2fs_folio_put(cfolio, true);
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entry->ino = ino;
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memcpy(cache_address(entry), folio_address(folio), sbi->blocksize);
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f2fs_cache_set_uptodate(entry);
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f2fs_put_cache(entry, true);
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}
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bool f2fs_load_compressed_folio(struct f2fs_sb_info *sbi, struct folio *folio,
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block_t blkaddr)
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{
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struct folio *cfolio;
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struct f2fs_cached_block *entry;
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bool hitted = false;
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if (!test_opt(sbi, COMPRESS_CACHE))
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return false;
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cfolio = f2fs_filemap_get_folio(COMPRESS_MAPPING(sbi),
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blkaddr, FGP_LOCK | FGP_NOWAIT, GFP_NOFS);
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if (!IS_ERR(cfolio)) {
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if (folio_test_uptodate(cfolio)) {
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entry = f2fs_find_cache(COMPRESS_CACHE(sbi), blkaddr,
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F2FS_CACHE_ACCESS);
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if (!IS_ERR(entry)) {
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f2fs_lock_cache(entry);
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if (f2fs_is_compress_cache(entry) &&
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f2fs_cache_test_uptodate(entry)) {
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atomic_inc(&sbi->compress_page_hit);
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memcpy(folio_address(folio),
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folio_address(cfolio), folio_size(folio));
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cache_address(entry), folio_size(folio));
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hitted = true;
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}
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f2fs_folio_put(cfolio, true);
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f2fs_put_cache(entry, true);
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}
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return hitted;
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@ -1977,71 +1962,49 @@ bool f2fs_load_compressed_folio(struct f2fs_sb_info *sbi, struct folio *folio,
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void f2fs_invalidate_compress_pages(struct f2fs_sb_info *sbi, nid_t ino)
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{
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struct address_space *mapping = COMPRESS_MAPPING(sbi);
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struct folio_batch fbatch;
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pgoff_t index = 0;
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pgoff_t end = MAX_BLKADDR(sbi);
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struct f2fs_cached_block_list *cache = COMPRESS_CACHE(sbi);
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struct f2fs_cached_block *entries[F2FS_ONSTACK_CACHES];
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pgoff_t index = 0, end = ULONG_MAX;
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int nr;
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int i;
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if (!mapping->nrpages)
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if (!cache->num_entries)
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return;
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next:
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nr = f2fs_cache_gang_lookup(cache, entries, &index, end);
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if (!nr)
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return;
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for (i = 0; i < nr; i++) {
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struct f2fs_cached_block *entry = entries[i];
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folio_batch_init(&fbatch);
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index = entry->index + 1;
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do {
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unsigned int nr, i;
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f2fs_lock_cache(entry);
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if (unlikely(!f2fs_is_compress_cache(entry)))
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goto unlock;
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if (entry->ino != ino)
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goto unlock;
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nr = filemap_get_folios(mapping, &index, end - 1, &fbatch);
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if (!nr)
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break;
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f2fs_truncate_locked_cache(entry, false);
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unlock:
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f2fs_unlock_cache(entry);
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}
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f2fs_cache_gang_release(entries, nr);
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for (i = 0; i < nr; i++) {
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struct folio *folio = fbatch.folios[i];
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folio_lock(folio);
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if (folio->mapping != mapping) {
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folio_unlock(folio);
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continue;
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}
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if (ino != folio_get_f2fs_data(folio)) {
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folio_unlock(folio);
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continue;
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}
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generic_error_remove_folio(mapping, folio);
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folio_unlock(folio);
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}
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folio_batch_release(&fbatch);
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if (index < end) {
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cond_resched();
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} while (index < end);
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goto next;
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}
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}
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int f2fs_init_compress_inode(struct f2fs_sb_info *sbi)
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void f2fs_init_compress_cache_context(struct f2fs_sb_info *sbi)
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{
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struct inode *inode;
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if (!test_opt(sbi, COMPRESS_CACHE))
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return 0;
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inode = f2fs_iget(sbi->sb, F2FS_COMPRESS_INO(sbi));
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if (IS_ERR(inode))
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return PTR_ERR(inode);
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sbi->compress_inode = inode;
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return;
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sbi->compress_percent = COMPRESS_PERCENT;
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sbi->compress_watermark = COMPRESS_WATERMARK;
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atomic_set(&sbi->compress_page_hit, 0);
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return 0;
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}
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void f2fs_destroy_compress_inode(struct f2fs_sb_info *sbi)
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{
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if (!sbi->compress_inode)
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return;
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iput(sbi->compress_inode);
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sbi->compress_inode = NULL;
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}
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int f2fs_init_page_array_cache(struct f2fs_sb_info *sbi)
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@ -225,8 +225,8 @@ static void update_general_status(struct f2fs_sb_info *sbi)
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si->node_caches = NODE_CACHE(sbi)->num_entries;
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si->meta_caches = META_CACHE(sbi)->num_entries;
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#ifdef CONFIG_F2FS_FS_COMPRESSION
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if (sbi->compress_inode) {
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si->compress_pages = COMPRESS_MAPPING(sbi)->nrpages;
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if (test_opt(sbi, COMPRESS_CACHE)) {
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si->compress_pages = COMPRESS_CACHE(sbi)->num_entries;
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si->compress_page_hit = atomic_read(&sbi->compress_page_hit);
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}
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#endif
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@ -386,10 +386,11 @@ static void update_mem_info(struct f2fs_sb_info *sbi)
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si->page_mem += (unsigned long long)NODE_CACHE(sbi)->num_entries << PAGE_SHIFT;
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si->cache_mem += NODE_CACHE(sbi)->num_entries * sizeof(struct f2fs_cached_block);
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#ifdef CONFIG_F2FS_FS_COMPRESSION
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if (sbi->compress_inode) {
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unsigned long npages = COMPRESS_MAPPING(sbi)->nrpages;
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if (test_opt(sbi, COMPRESS_CACHE)) {
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unsigned long npages = COMPRESS_CACHE(sbi)->num_entries;
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si->page_mem += (unsigned long long)npages << PAGE_SHIFT;
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si->cache_mem += npages * sizeof(struct f2fs_cached_block);
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}
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#endif
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}
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@ -2077,7 +2077,6 @@ struct f2fs_sb_info {
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u32 compr_new_inode;
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/* For compressed block cache */
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struct inode *compress_inode; /* cache compressed blocks */
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unsigned int compress_percent; /* cache page percentage */
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unsigned int compress_watermark; /* cache page watermark */
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atomic_t compress_page_hit; /* cache hit count */
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@ -4889,13 +4888,11 @@ unsigned int f2fs_cluster_blocks_are_contiguous(struct dnode_of_data *dn,
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int f2fs_init_compress_ctx(struct compress_ctx *cc);
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void f2fs_destroy_compress_ctx(struct compress_ctx *cc, bool reuse);
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void f2fs_init_compress_info(struct f2fs_sb_info *sbi);
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int f2fs_init_compress_inode(struct f2fs_sb_info *sbi);
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void f2fs_destroy_compress_inode(struct f2fs_sb_info *sbi);
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void f2fs_init_compress_cache_context(struct f2fs_sb_info *sbi);
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int f2fs_init_page_array_cache(struct f2fs_sb_info *sbi);
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void f2fs_destroy_page_array_cache(struct f2fs_sb_info *sbi);
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int __init f2fs_init_compress_cache(void);
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void f2fs_destroy_compress_cache(void);
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struct address_space *COMPRESS_MAPPING(struct f2fs_sb_info *sbi);
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void f2fs_invalidate_compress_pages_range(struct f2fs_sb_info *sbi,
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block_t blkaddr, unsigned int len);
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bool f2fs_load_compressed_folio(struct f2fs_sb_info *sbi, struct folio *folio,
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@ -4944,8 +4941,7 @@ static inline void f2fs_put_folio_dic(struct folio *folio, bool in_task)
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static inline unsigned int f2fs_cluster_blocks_are_contiguous(
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struct dnode_of_data *dn, unsigned int ofs_in_node) { return 0; }
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static inline bool f2fs_sanity_check_cluster(struct dnode_of_data *dn) { return false; }
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static inline int f2fs_init_compress_inode(struct f2fs_sb_info *sbi) { return 0; }
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static inline void f2fs_destroy_compress_inode(struct f2fs_sb_info *sbi) { }
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static inline void f2fs_init_compress_cache_context(struct f2fs_sb_info *sbi) { }
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static inline int f2fs_init_page_array_cache(struct f2fs_sb_info *sbi) { return 0; }
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static inline void f2fs_destroy_page_array_cache(struct f2fs_sb_info *sbi) { }
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static inline int __init f2fs_init_compress_cache(void) { return 0; }
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@ -574,15 +574,6 @@ static int do_read_inode(struct inode *inode)
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return 0;
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}
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static bool is_meta_ino(struct f2fs_sb_info *sbi, unsigned int ino)
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{
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#ifdef CONFIG_F2FS_FS_COMPRESSION
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if (test_opt(sbi, COMPRESS_CACHE) && ino == F2FS_COMPRESS_INO(sbi))
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return true;
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#endif
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return false;
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}
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struct inode *f2fs_iget(struct super_block *sb, unsigned long ino)
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{
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struct f2fs_sb_info *sbi = F2FS_SB(sb);
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@ -594,42 +585,17 @@ struct inode *f2fs_iget(struct super_block *sb, unsigned long ino)
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return ERR_PTR(-ENOMEM);
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if (!(inode_state_read_once(inode) & I_NEW)) {
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if (is_meta_ino(sbi, ino)) {
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f2fs_err(sbi, "inaccessible inode: %lu, run fsck to repair", ino);
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set_sbi_flag(sbi, SBI_NEED_FSCK);
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ret = -EFSCORRUPTED;
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trace_f2fs_iget_exit(inode, ret);
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iput(inode);
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f2fs_handle_error(sbi, ERROR_CORRUPTED_INODE);
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fserror_report_file_metadata(inode, ret, GFP_NOFS);
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return ERR_PTR(ret);
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}
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trace_f2fs_iget(inode);
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return inode;
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}
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if (is_meta_ino(sbi, ino))
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goto make_now;
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ret = do_read_inode(inode);
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if (ret)
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goto bad_inode;
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make_now:
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f2fs_set_inode_flags(inode);
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if (ino == F2FS_COMPRESS_INO(sbi)) {
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#ifdef CONFIG_F2FS_FS_COMPRESSION
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inode->i_mapping->a_ops = &f2fs_compress_aops;
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/*
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* generic_error_remove_folio only truncates pages of regular
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* inode
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*/
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inode->i_mode |= S_IFREG;
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#endif
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mapping_set_gfp_mask(inode->i_mapping,
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GFP_NOFS | __GFP_HIGHMEM | __GFP_MOVABLE);
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} else if (S_ISREG(inode->i_mode)) {
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if (S_ISREG(inode->i_mode)) {
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inode->i_op = &f2fs_file_inode_operations;
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inode->i_fop = &f2fs_file_operations;
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inode->i_mapping->a_ops = &f2fs_dblock_aops;
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@ -882,7 +848,7 @@ static void f2fs_evict_inode_work(struct work_struct *work)
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/*
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* Return true, if we shouldn't go through post_evict_inode.
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*/
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static bool f2fs_pre_evict_inode(struct inode *inode)
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static void f2fs_pre_evict_inode(struct inode *inode)
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{
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struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
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struct f2fs_inode_info *fi = F2FS_I(inode);
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@ -908,17 +874,12 @@ static bool f2fs_pre_evict_inode(struct inode *inode)
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test_opt(sbi, COMPRESS_CACHE) && f2fs_compressed_file(inode))
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f2fs_invalidate_compress_pages(sbi, inode->i_ino);
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if (inode->i_ino == F2FS_COMPRESS_INO(sbi))
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return true;
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f2fs_bug_on(sbi, get_dirty_pages(inode));
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f2fs_remove_dirty_inode(inode);
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f2fs_remove_donate_inode(inode);
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if (!IS_DEVICE_ALIASING(inode))
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f2fs_destroy_extent_tree(inode);
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return false;
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}
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static void f2fs_delete_inode(struct inode *inode)
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@ -1080,15 +1041,13 @@ static void f2fs_post_evict_inode(struct inode *inode)
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*/
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void f2fs_evict_inode(struct inode *inode)
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{
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if (f2fs_pre_evict_inode(inode))
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goto clear_out;
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f2fs_pre_evict_inode(inode);
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if (!inode->i_nlink && !is_bad_inode(inode))
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f2fs_delete_inode(inode);
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f2fs_post_evict_inode(inode);
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clear_out:
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fscrypt_put_encryption_info(inode);
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clear_inode(inode);
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}
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@ -109,7 +109,7 @@ bool f2fs_available_free_memory(struct f2fs_sb_info *sbi, int type)
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mem_size = (atomic_read(&dcc->discard_cmd_cnt) *
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sizeof(struct discard_cmd)) >> PAGE_SHIFT;
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res = mem_size < (avail_ram * nm_i->ram_thresh / 100);
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} else if (type == COMPRESS_PAGE) {
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} else if (type == COMPRESS_BLOCK) {
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#ifdef CONFIG_F2FS_FS_COMPRESSION
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unsigned long free_ram = val.freeram;
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@ -118,7 +118,7 @@ bool f2fs_available_free_memory(struct f2fs_sb_info *sbi, int type)
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* exceed threshold, deny caching compress page.
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*/
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res = (free_ram > avail_ram * sbi->compress_watermark / 100) &&
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(COMPRESS_MAPPING(sbi)->nrpages <
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(COMPRESS_CACHE(sbi)->num_entries <
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free_ram * sbi->compress_percent / 100);
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#else
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res = false;
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@ -157,7 +157,7 @@ enum mem_type {
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READ_EXTENT_CACHE, /* indicates read extent cache */
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AGE_EXTENT_CACHE, /* indicates age extent cache */
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DISCARD_CACHE, /* indicates memory of cached discard cmds */
|
||||
COMPRESS_PAGE, /* indicates memory of cached compressed pages */
|
||||
COMPRESS_BLOCK, /* indicates memory of cached compressed blocks */
|
||||
BASE_CHECK, /* check kernel status */
|
||||
};
|
||||
|
||||
|
|
|
|||
|
|
@ -40,7 +40,8 @@ static unsigned long __count_extent_cache(struct f2fs_sb_info *sbi,
|
|||
static unsigned long __count_cache(struct f2fs_sb_info *sbi)
|
||||
{
|
||||
return META_CACHE(sbi)->num_entries +
|
||||
NODE_CACHE(sbi)->num_entries;
|
||||
NODE_CACHE(sbi)->num_entries +
|
||||
COMPRESS_CACHE(sbi)->num_entries;
|
||||
}
|
||||
|
||||
unsigned long f2fs_shrink_count(struct shrinker *shrink,
|
||||
|
|
|
|||
|
|
@ -2069,8 +2069,6 @@ static void f2fs_put_super(struct super_block *sb)
|
|||
|
||||
f2fs_bug_on(sbi, sbi->fsync_node_num);
|
||||
|
||||
f2fs_destroy_compress_inode(sbi);
|
||||
|
||||
f2fs_destroy_cache(COMPRESS_CACHE(sbi));
|
||||
f2fs_destroy_cache(NODE_CACHE(sbi));
|
||||
f2fs_destroy_cache(META_CACHE(sbi));
|
||||
|
|
@ -5315,6 +5313,8 @@ static int f2fs_fill_super(struct super_block *sb, struct fs_context *fc)
|
|||
|
||||
f2fs_init_fsync_node_info(sbi);
|
||||
|
||||
f2fs_init_compress_cache_context(sbi);
|
||||
|
||||
/* setup checkpoint request control and start checkpoint issue thread */
|
||||
f2fs_init_ckpt_req_control(sbi);
|
||||
if (!f2fs_readonly(sb) && !test_opt(sbi, DISABLE_CHECKPOINT) &&
|
||||
|
|
@ -5387,13 +5387,9 @@ static int f2fs_fill_super(struct super_block *sb, struct fs_context *fc)
|
|||
goto free_ino_entry;
|
||||
}
|
||||
|
||||
err = f2fs_init_compress_inode(sbi);
|
||||
if (err)
|
||||
goto free_root_inode;
|
||||
|
||||
err = f2fs_register_sysfs(sbi);
|
||||
if (err)
|
||||
goto free_compress_inode;
|
||||
goto free_root_inode;
|
||||
|
||||
sbi->umount_lock_holder = current;
|
||||
#ifdef CONFIG_QUOTA
|
||||
|
|
@ -5561,8 +5557,6 @@ static int f2fs_fill_super(struct super_block *sb, struct fs_context *fc)
|
|||
/* evict some inodes being cached by GC */
|
||||
evict_inodes(sb);
|
||||
f2fs_unregister_sysfs(sbi);
|
||||
free_compress_inode:
|
||||
f2fs_destroy_compress_inode(sbi);
|
||||
free_root_inode:
|
||||
dput(sb->s_root);
|
||||
sb->s_root = NULL;
|
||||
|
|
@ -5676,7 +5670,8 @@ static void kill_f2fs_super(struct super_block *sb)
|
|||
* compress inode cache.
|
||||
*/
|
||||
if (test_opt(sbi, COMPRESS_CACHE))
|
||||
truncate_inode_pages_final(COMPRESS_MAPPING(sbi));
|
||||
f2fs_invalidate_compress_pages_range(sbi,
|
||||
0, UINT_MAX);
|
||||
#endif
|
||||
|
||||
if (is_sbi_flag_set(sbi, SBI_IS_DIRTY) ||
|
||||
|
|
|
|||
|
|
@ -43,7 +43,6 @@
|
|||
#define F2FS_RESERVED_NODE_NUM 3
|
||||
|
||||
#define F2FS_ROOT_INO(sbi) ((sbi)->root_ino_num)
|
||||
#define F2FS_COMPRESS_INO(sbi) (NM_I(sbi)->max_nid)
|
||||
|
||||
#define F2FS_MAX_QUOTAS 3
|
||||
|
||||
|
|
|
|||
Loading…
Reference in New Issue
Block a user