Re: [f2fs-dev] [PATCH v3 09/12] f2fs: cache: use compress cache

From: Daeho Jeong

Date: Wed Aug 26 2026 - 16:26:28 EST

On Wed, Aug 26, 2026 at 1:04 PM Daeho Jeong <daeho43@xxxxxxxxx> wrote:
>
> On Tue, Aug 25, 2026 at 6:03 AM Chao Yu via Linux-f2fs-devel
> <linux-f2fs-devel@xxxxxxxxxxxxxxxxxxxxx> wrote:
> >
> > 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.
> >
> > Signed-off-by: Chao Yu <chao@xxxxxxxxxx>
> > ---
> > fs/f2fs/cache.c | 14 ++--
> > fs/f2fs/cache.h | 1 +
> > fs/f2fs/compress.c | 158 ++++++++++++++++++----------------------
> > fs/f2fs/debug.c | 9 ++-
> > fs/f2fs/f2fs.h | 8 +-
> > fs/f2fs/inode.c | 49 +------------
> > fs/f2fs/node.c | 2 +-
> > fs/f2fs/shrinker.c | 3 +-
> > fs/f2fs/super.c | 15 ++--
> > include/linux/f2fs_fs.h | 1 -
> > 10 files changed, 98 insertions(+), 162 deletions(-)
> >
> > diff --git a/fs/f2fs/cache.c b/fs/f2fs/cache.c
> > index 8431180bb1f8..5b9055ad49b9 100644
> > --- a/fs/f2fs/cache.c
> > +++ b/fs/f2fs/cache.c
> > @@ -417,13 +417,12 @@ static void f2fs_do_truncate_cache(struct f2fs_cached_block *entry,
> > spin_unlock(&cache->list_lock);
> > }
> >
> > -static void f2fs_truncate_cache(struct f2fs_cached_block *entry,
> > +void f2fs_truncate_cache(struct f2fs_cached_block *entry,
> > bool drop_dirty)
>
> -> __f2fs_truncate_cache() without locking?
>
> > {
> > - f2fs_lock_cache(entry);
> > - if (entry->cache)
> > - f2fs_do_truncate_cache(entry, drop_dirty);
> > - f2fs_unlock_cache(entry);
> > + if (!entry->cache)
> > + return;
> > + f2fs_do_truncate_cache(entry, drop_dirty);
> > }
> >
> > static void f2fs_drop_cache(struct f2fs_cached_block_list *cache,
> > @@ -435,8 +434,9 @@ static void f2fs_drop_cache(struct f2fs_cached_block_list *cache,
> > if (IS_ERR(entry))
> > return;
> >
> > + f2fs_lock_cache(entry);
> > f2fs_truncate_cache(entry, drop_dirty);
> > - f2fs_put_cache(entry, false);
> > + f2fs_put_cache(entry, true);
> > }
> >
> > void f2fs_drop_cache_range(struct f2fs_cached_block_list *cache,
> > @@ -478,7 +478,9 @@ void f2fs_drop_cache_range(struct f2fs_cached_block_list *cache,
> >
> > index = entry->index + 1;
> >
> > + f2fs_lock_cache(entry);
> > f2fs_truncate_cache(entry, drop_dirty);
> > + f2fs_unlock_cache(entry);
> > }
> > f2fs_cache_gang_release(entries, nr);
> >
> > diff --git a/fs/f2fs/cache.h b/fs/f2fs/cache.h
> > index b87feb3eb896..b66dbaefee2f 100644
> > --- a/fs/f2fs/cache.h
> > +++ b/fs/f2fs/cache.h
> > @@ -168,6 +168,7 @@ unsigned int f2fs_cache_gang_lookup_tag(struct f2fs_cached_block_list *cache,
> > unsigned int max_items, int tag);
> > void f2fs_cache_gang_release(struct f2fs_cached_block **entries,
> > unsigned int nr_entries);
> > +void f2fs_truncate_cache(struct f2fs_cached_block *entry, bool drop_dirty);
> > int f2fs_writeback_cache(struct f2fs_cached_block_list *cache, bool sync);
> > void f2fs_cache_wait_on_all_writeback(struct f2fs_cached_block_list *cache);
> > void f2fs_cache_wait_writeback_cond(struct f2fs_cached_block *entry,
> > diff --git a/fs/f2fs/compress.c b/fs/f2fs/compress.c
> > index 676a5559357f..155be3a3d203 100644
> > --- a/fs/f2fs/compress.c
> > +++ b/fs/f2fs/compress.c
> > @@ -1918,30 +1918,19 @@ unsigned int f2fs_cluster_blocks_are_contiguous(struct dnode_of_data *dn,
> > return compressed ? i - 1 : i;
> > }
> >
> > -const struct address_space_operations f2fs_compress_aops = {
> > - .release_folio = f2fs_release_folio,
> > - .invalidate_folio = f2fs_invalidate_folio,
> > - .migrate_folio = filemap_migrate_folio,
> > -};
> > -
> > -struct address_space *COMPRESS_MAPPING(struct f2fs_sb_info *sbi)
> > -{
> > - return sbi->compress_inode->i_mapping;
> > -}
> > -
> > void f2fs_invalidate_compress_pages_range(struct f2fs_sb_info *sbi,
> > block_t blkaddr, unsigned int len)
> > {
> > - if (!sbi->compress_inode)
> > + if (!test_opt(sbi, COMPRESS_CACHE))
> > return;
> > - invalidate_mapping_pages(COMPRESS_MAPPING(sbi), blkaddr, blkaddr + len - 1);
> > +
> > + f2fs_drop_cache_range(COMPRESS_CACHE(sbi), blkaddr, len, false);
> > }
> >
> > static void f2fs_cache_compressed_page(struct f2fs_sb_info *sbi,
> > struct folio *folio, nid_t ino, block_t blkaddr)
> > {
> > - struct folio *cfolio;
> > - int ret;
> > + struct f2fs_cached_block *entry;
> >
> > if (!test_opt(sbi, COMPRESS_CACHE))
> > return;
> > @@ -1952,49 +1941,43 @@ static void f2fs_cache_compressed_page(struct f2fs_sb_info *sbi,
> > if (!f2fs_available_free_memory(sbi, COMPRESS_PAGE))
> > return;
> >
> > - cfolio = filemap_get_folio(COMPRESS_MAPPING(sbi), blkaddr);
> > - if (!IS_ERR(cfolio)) {
> > - f2fs_folio_put(cfolio, false);
> > + entry = f2fs_find_cache(COMPRESS_CACHE(sbi), blkaddr);
> > + if (!IS_ERR(entry)) {
> > + f2fs_put_cache(entry, false);
> > return;
> > }
> >
> > - cfolio = filemap_alloc_folio(__GFP_NOWARN | __GFP_IO, 0, NULL);
> > - if (!cfolio)
> > - return;
> > -
> > - ret = filemap_add_folio(COMPRESS_MAPPING(sbi), cfolio,
> > - blkaddr, GFP_NOFS);
> > - if (ret) {
> > - f2fs_folio_put(cfolio, false);
> > + entry = f2fs_grab_cache(COMPRESS_CACHE(sbi), blkaddr,
> > + F2FS_CACHE_LOCK_CREATE);
> > + if (IS_ERR(entry))
> > return;
> > - }
> >
> > - folio_set_f2fs_data(cfolio, ino);
> > -
> > - memcpy(folio_address(cfolio), folio_address(folio), PAGE_SIZE);
> > - folio_mark_uptodate(cfolio);
> > - f2fs_folio_put(cfolio, true);
> > + entry->ino = ino;
> > + memcpy(cache_address(entry), folio_address(folio), PAGE_SIZE);

Use sbi->blocksize or F2FS_BLKSIZE instead?

Thanks,

> > + f2fs_cache_set_uptodate(entry);
> > + f2fs_put_cache(entry, true);
> > }
> >
> > bool f2fs_load_compressed_folio(struct f2fs_sb_info *sbi, struct folio *folio,
> > block_t blkaddr)
> > {
> > - struct folio *cfolio;
> > + struct f2fs_cached_block *entry;
> > bool hitted = false;
> >
> > if (!test_opt(sbi, COMPRESS_CACHE))
> > return false;
> >
> > - cfolio = f2fs_filemap_get_folio(COMPRESS_MAPPING(sbi),
> > - blkaddr, FGP_LOCK | FGP_NOWAIT, GFP_NOFS);
> > - if (!IS_ERR(cfolio)) {
> > - if (folio_test_uptodate(cfolio)) {
> > + entry = f2fs_find_cache(COMPRESS_CACHE(sbi), blkaddr);
> > + if (!IS_ERR(entry)) {
> > + f2fs_lock_cache(entry);
> > + if (f2fs_is_compress_cache(entry) &&
> > + f2fs_cache_test_uptodate(entry)) {
> > atomic_inc(&sbi->compress_page_hit);
> > memcpy(folio_address(folio),
> > - folio_address(cfolio), folio_size(folio));
> > + cache_address(entry), folio_size(folio));
> > hitted = true;
> > }
> > - f2fs_folio_put(cfolio, true);
> > + f2fs_put_cache(entry, true);
> > }
> >
> > return hitted;
> > @@ -2002,71 +1985,70 @@ bool f2fs_load_compressed_folio(struct f2fs_sb_info *sbi, struct folio *folio,
> >
> > void f2fs_invalidate_compress_pages(struct f2fs_sb_info *sbi, nid_t ino)
>
> This is O(N) Full-tree scan on inode eviction.
>
> WDYT to improve it?
> - Per-inode tracking
> - Re-evaluate eviction policy: Since compress cache blocks are
> indexed by physical block address (blkaddr) and hold immutable disk
> data, the cached blocks remain valid even after the inode is
> closed/evicted.
> We should evaluate whether we actually need to synchronously purge
> clean compress cache entries upon inode eviction, or if we can simply
> let the memory shrinker reclaim them via LRU under memory pressure.
>
> > {
> > - struct address_space *mapping = COMPRESS_MAPPING(sbi);
> > - struct folio_batch fbatch;
> > - pgoff_t index = 0;
> > - pgoff_t end = MAX_BLKADDR(sbi);
> > + struct f2fs_cached_block_list *cache = COMPRESS_CACHE(sbi);
> > + struct f2fs_cached_block *entries[F2FS_ONSTACK_CACHES];
> > + unsigned long flags;
> > + pgoff_t index = 0, end = ULONG_MAX;
> > + int nr;
> > + int i;
> >
> > - if (!mapping->nrpages)
>
> Why did you remove this line?
>
> > + if (!test_opt(sbi, COMPRESS_CACHE))
> > return;
> > -
> > - folio_batch_init(&fbatch);
> > -
> > - do {
> > - unsigned int nr, i;
> > -
> > - nr = filemap_get_folios(mapping, &index, end - 1, &fbatch);
> > - if (!nr)
> > +next:
> > + spin_lock_irqsave(&cache->tree_lock, flags);
> > + nr = radix_tree_gang_lookup(&cache->root, (void **)entries, index,
> > + min((unsigned long)F2FS_ONSTACK_CACHES, end - index));
> > + if (!nr)
> > + goto out_unlock;
> > +
> > + for (i = 0; i < nr; i++) {
> > + struct f2fs_cached_block *entry = entries[i];
> > +
> > + if (entry->index >= end) {
> > + nr = i;
> > break;
> > + }
> > + f2fs_cache_get(entry);
> > + }
> > +out_unlock:
> > + spin_unlock_irqrestore(&cache->tree_lock, flags);
> > + if (!nr)
> > + return;
> > + for (i = 0; i < nr; i++) {
> > + struct f2fs_cached_block *entry = entries[i];
> >
> > - for (i = 0; i < nr; i++) {
> > - struct folio *folio = fbatch.folios[i];
> > + index = entry->index + 1;
> >
> > - folio_lock(folio);
> > - if (folio->mapping != mapping) {
> > - folio_unlock(folio);
> > - continue;
> > - }
> > + f2fs_lock_cache(entry);
> >
> > - if (ino != folio_get_f2fs_data(folio)) {
> > - folio_unlock(folio);
> > - continue;
> > - }
> > -
> > - generic_error_remove_folio(mapping, folio);
> > - folio_unlock(folio);
> > + if (!f2fs_is_compress_cache(entry)) {
>
> How is this possible?
> or if (!entry->cache)?
>
> Thanks,
>
> > + f2fs_unlock_cache(entry);
> > + continue;
> > }
> > - folio_batch_release(&fbatch);
> > + if (entry->ino != ino) {
> > + f2fs_unlock_cache(entry);
> > + continue;
> > + }
> > +
> > + f2fs_truncate_cache(entry, false);
> > + f2fs_unlock_cache(entry);
> > + }
> > + f2fs_cache_gang_release(entries, nr);
> > +
> > + if (index < end) {
> > cond_resched();
> > - } while (index < end);
> > + goto next;
> > + }
> > }
> >
> > -int f2fs_init_compress_inode(struct f2fs_sb_info *sbi)
> > +void f2fs_init_compress_cache_context(struct f2fs_sb_info *sbi)
> > {
> > - struct inode *inode;
> > -
> > if (!test_opt(sbi, COMPRESS_CACHE))
> > - return 0;
> > -
> > - inode = f2fs_iget(sbi->sb, F2FS_COMPRESS_INO(sbi));
> > - if (IS_ERR(inode))
> > - return PTR_ERR(inode);
> > - sbi->compress_inode = inode;
> > + return;
> >
> > sbi->compress_percent = COMPRESS_PERCENT;
> > sbi->compress_watermark = COMPRESS_WATERMARK;
> > -
> > atomic_set(&sbi->compress_page_hit, 0);
> > -
> > - return 0;
> > -}
> > -
> > -void f2fs_destroy_compress_inode(struct f2fs_sb_info *sbi)
> > -{
> > - if (!sbi->compress_inode)
> > - return;
> > - iput(sbi->compress_inode);
> > - sbi->compress_inode = NULL;
> > }
> >
> > int f2fs_init_page_array_cache(struct f2fs_sb_info *sbi)
> > diff --git a/fs/f2fs/debug.c b/fs/f2fs/debug.c
> > index bedaade92677..8cd06f7ba9e7 100644
> > --- a/fs/f2fs/debug.c
> > +++ b/fs/f2fs/debug.c
> > @@ -225,8 +225,8 @@ static void update_general_status(struct f2fs_sb_info *sbi)
> > si->node_caches = NODE_CACHE(sbi)->num_entries;
> > si->meta_caches = META_CACHE(sbi)->num_entries;
> > #ifdef CONFIG_F2FS_FS_COMPRESSION
> > - if (sbi->compress_inode) {
> > - si->compress_pages = COMPRESS_MAPPING(sbi)->nrpages;
> > + if (test_opt(sbi, COMPRESS_CACHE)) {
> > + si->compress_pages = COMPRESS_CACHE(sbi)->num_entries;
> > si->compress_page_hit = atomic_read(&sbi->compress_page_hit);
> > }
> > #endif
> > @@ -386,10 +386,11 @@ static void update_mem_info(struct f2fs_sb_info *sbi)
> > si->page_mem += (unsigned long long)NODE_CACHE(sbi)->num_entries << PAGE_SHIFT;
> > si->cache_mem += NODE_CACHE(sbi)->num_entries * sizeof(struct f2fs_cached_block);
> > #ifdef CONFIG_F2FS_FS_COMPRESSION
> > - if (sbi->compress_inode) {
> > - unsigned long npages = COMPRESS_MAPPING(sbi)->nrpages;
> > + if (test_opt(sbi, COMPRESS_CACHE)) {
> > + unsigned long npages = COMPRESS_CACHE(sbi)->num_entries;
> >
> > si->page_mem += (unsigned long long)npages << PAGE_SHIFT;
> > + si->cache_mem += npages * sizeof(struct f2fs_cached_block);
> > }
> > #endif
> > }
> > diff --git a/fs/f2fs/f2fs.h b/fs/f2fs/f2fs.h
> > index 5b1b3104ec20..d55749b03ed2 100644
> > --- a/fs/f2fs/f2fs.h
> > +++ b/fs/f2fs/f2fs.h
> > @@ -2078,7 +2078,6 @@ struct f2fs_sb_info {
> > u32 compr_new_inode;
> >
> > /* For compressed block cache */
> > - struct inode *compress_inode; /* cache compressed blocks */
> > unsigned int compress_percent; /* cache page percentage */
> > unsigned int compress_watermark; /* cache page watermark */
> > atomic_t compress_page_hit; /* cache hit count */
> > @@ -4821,13 +4820,11 @@ unsigned int f2fs_cluster_blocks_are_contiguous(struct dnode_of_data *dn,
> > int f2fs_init_compress_ctx(struct compress_ctx *cc);
> > void f2fs_destroy_compress_ctx(struct compress_ctx *cc, bool reuse);
> > void f2fs_init_compress_info(struct f2fs_sb_info *sbi);
> > -int f2fs_init_compress_inode(struct f2fs_sb_info *sbi);
> > -void f2fs_destroy_compress_inode(struct f2fs_sb_info *sbi);
> > +void f2fs_init_compress_cache_context(struct f2fs_sb_info *sbi);
> > int f2fs_init_page_array_cache(struct f2fs_sb_info *sbi);
> > void f2fs_destroy_page_array_cache(struct f2fs_sb_info *sbi);
> > int __init f2fs_init_compress_cache(void);
> > void f2fs_destroy_compress_cache(void);
> > -struct address_space *COMPRESS_MAPPING(struct f2fs_sb_info *sbi);
> > void f2fs_invalidate_compress_pages_range(struct f2fs_sb_info *sbi,
> > block_t blkaddr, unsigned int len);
> > bool f2fs_load_compressed_folio(struct f2fs_sb_info *sbi, struct folio *folio,
> > @@ -4876,8 +4873,7 @@ static inline void f2fs_put_folio_dic(struct folio *folio, bool in_task)
> > static inline unsigned int f2fs_cluster_blocks_are_contiguous(
> > struct dnode_of_data *dn, unsigned int ofs_in_node) { return 0; }
> > static inline bool f2fs_sanity_check_cluster(struct dnode_of_data *dn) { return false; }
> > -static inline int f2fs_init_compress_inode(struct f2fs_sb_info *sbi) { return 0; }
> > -static inline void f2fs_destroy_compress_inode(struct f2fs_sb_info *sbi) { }
> > +static inline void f2fs_init_compress_cache_context(struct f2fs_sb_info *sbi) { }
> > static inline int f2fs_init_page_array_cache(struct f2fs_sb_info *sbi) { return 0; }
> > static inline void f2fs_destroy_page_array_cache(struct f2fs_sb_info *sbi) { }
> > static inline int __init f2fs_init_compress_cache(void) { return 0; }
> > diff --git a/fs/f2fs/inode.c b/fs/f2fs/inode.c
> > index aa6f4d4a55a7..1688d9cbafe1 100644
> > --- a/fs/f2fs/inode.c
> > +++ b/fs/f2fs/inode.c
> > @@ -573,15 +573,6 @@ static int do_read_inode(struct inode *inode)
> > return 0;
> > }
> >
> > -static bool is_meta_ino(struct f2fs_sb_info *sbi, unsigned int ino)
> > -{
> > -#ifdef CONFIG_F2FS_FS_COMPRESSION
> > - if (test_opt(sbi, COMPRESS_CACHE) && ino == F2FS_COMPRESS_INO(sbi))
> > - return true;
> > -#endif
> > - return false;
> > -}
> > -
> > struct inode *f2fs_iget(struct super_block *sb, unsigned long ino)
> > {
> > struct f2fs_sb_info *sbi = F2FS_SB(sb);
> > @@ -593,42 +584,17 @@ struct inode *f2fs_iget(struct super_block *sb, unsigned long ino)
> > return ERR_PTR(-ENOMEM);
> >
> > if (!(inode_state_read_once(inode) & I_NEW)) {
> > - if (is_meta_ino(sbi, ino)) {
> > - f2fs_err(sbi, "inaccessible inode: %lu, run fsck to repair", ino);
> > - set_sbi_flag(sbi, SBI_NEED_FSCK);
> > - ret = -EFSCORRUPTED;
> > - trace_f2fs_iget_exit(inode, ret);
> > - iput(inode);
> > - f2fs_handle_error(sbi, ERROR_CORRUPTED_INODE);
> > - fserror_report_file_metadata(inode, ret, GFP_NOFS);
> > - return ERR_PTR(ret);
> > - }
> > -
> > trace_f2fs_iget(inode);
> > return inode;
> > }
> >
> > - if (is_meta_ino(sbi, ino))
> > - goto make_now;
> > -
> > ret = do_read_inode(inode);
> > if (ret)
> > goto bad_inode;
> > -make_now:
> > +
> > f2fs_set_inode_flags(inode);
> >
> > - if (ino == F2FS_COMPRESS_INO(sbi)) {
> > -#ifdef CONFIG_F2FS_FS_COMPRESSION
> > - inode->i_mapping->a_ops = &f2fs_compress_aops;
> > - /*
> > - * generic_error_remove_folio only truncates pages of regular
> > - * inode
> > - */
> > - inode->i_mode |= S_IFREG;
> > -#endif
> > - mapping_set_gfp_mask(inode->i_mapping,
> > - GFP_NOFS | __GFP_HIGHMEM | __GFP_MOVABLE);
> > - } else if (S_ISREG(inode->i_mode)) {
> > + if (S_ISREG(inode->i_mode)) {
> > inode->i_op = &f2fs_file_inode_operations;
> > inode->i_fop = &f2fs_file_operations;
> > inode->i_mapping->a_ops = &f2fs_dblock_aops;
> > @@ -879,7 +845,7 @@ static void f2fs_evict_inode_work(struct work_struct *work)
> > /*
> > * Return true, if we shouldn't go through post_evict_inode.
> > */
> > -static bool f2fs_pre_evict_inode(struct inode *inode)
> > +static void f2fs_pre_evict_inode(struct inode *inode)
> > {
> > struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
> > struct f2fs_inode_info *fi = F2FS_I(inode);
> > @@ -905,17 +871,12 @@ static bool f2fs_pre_evict_inode(struct inode *inode)
> > test_opt(sbi, COMPRESS_CACHE) && f2fs_compressed_file(inode))
> > f2fs_invalidate_compress_pages(sbi, inode->i_ino);
> >
> > - if (inode->i_ino == F2FS_COMPRESS_INO(sbi))
> > - return true;
> > -
> > f2fs_bug_on(sbi, get_dirty_pages(inode));
> > f2fs_remove_dirty_inode(inode);
> > f2fs_remove_donate_inode(inode);
> >
> > if (!IS_DEVICE_ALIASING(inode))
> > f2fs_destroy_extent_tree(inode);
> > -
> > - return false;
> > }
> >
> > static void f2fs_delete_inode(struct inode *inode)
> > @@ -1077,15 +1038,13 @@ static void f2fs_post_evict_inode(struct inode *inode)
> > */
> > void f2fs_evict_inode(struct inode *inode)
> > {
> > - if (f2fs_pre_evict_inode(inode))
> > - goto clear_out;
> > + f2fs_pre_evict_inode(inode);
> >
> > if (!inode->i_nlink && !is_bad_inode(inode))
> > f2fs_delete_inode(inode);
> >
> > f2fs_post_evict_inode(inode);
> >
> > -clear_out:
> > fscrypt_put_encryption_info(inode);
> > clear_inode(inode);
> > }
> > diff --git a/fs/f2fs/node.c b/fs/f2fs/node.c
> > index 07c23b35e7f7..cf052008aa64 100644
> > --- a/fs/f2fs/node.c
> > +++ b/fs/f2fs/node.c
> > @@ -119,7 +119,7 @@ bool f2fs_available_free_memory(struct f2fs_sb_info *sbi, int type)
> > * exceed threshold, deny caching compress page.
> > */
> > res = (free_ram > avail_ram * sbi->compress_watermark / 100) &&
> > - (COMPRESS_MAPPING(sbi)->nrpages <
> > + (COMPRESS_CACHE(sbi)->num_entries <
> > free_ram * sbi->compress_percent / 100);
> > #else
> > res = false;
> > diff --git a/fs/f2fs/shrinker.c b/fs/f2fs/shrinker.c
> > index 20b3fe1f8c07..e7d2830e6a23 100644
> > --- a/fs/f2fs/shrinker.c
> > +++ b/fs/f2fs/shrinker.c
> > @@ -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 sbi->meta_blocks.num_entries +
> > - sbi->node_blocks.num_entries;
> > + sbi->node_blocks.num_entries +
> > + sbi->compress_blocks.num_entries;
> > }
> >
> > unsigned long f2fs_shrink_count(struct shrinker *shrink,
> > diff --git a/fs/f2fs/super.c b/fs/f2fs/super.c
> > index 6b42b736a662..5787cfb76c6e 100644
> > --- a/fs/f2fs/super.c
> > +++ b/fs/f2fs/super.c
> > @@ -2050,8 +2050,6 @@ 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));
> > @@ -5285,6 +5283,8 @@ 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) &&
> > @@ -5363,13 +5363,9 @@ 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
> > @@ -5537,8 +5533,6 @@ 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;
> > @@ -5655,7 +5649,8 @@ 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) ||
> > diff --git a/include/linux/f2fs_fs.h b/include/linux/f2fs_fs.h
> > index 105cfeedea74..53344e1f2b44 100644
> > --- a/include/linux/f2fs_fs.h
> > +++ b/include/linux/f2fs_fs.h
> > @@ -34,7 +34,6 @@
> > #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
> >
> > --
> > 2.49.0
> >
> >
> >
> > _______________________________________________
> > Linux-f2fs-devel mailing list
> > Linux-f2fs-devel@xxxxxxxxxxxxxxxxxxxxx
> > https://lists.sourceforge.net/lists/listinfo/linux-f2fs-devel