f2fs: compress: add compress_inode to cache compressed blocks
Support to use address space of inner inode to cache compressed block, in order to improve cache hit ratio of random read. Signed-off-by: Chao Yu <yuchao0@huawei.com> Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
This commit is contained in:
Chao Yu
Jaegeuk Kim
Родитель
4c89b53d05
Коммит
6ce19aff0b
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@ -289,6 +289,9 @@ compress_mode=%s Control file compression mode. This supports "fs" and "user"
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choosing the target file and the timing. The user can do manual
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compression/decompression on the compression enabled files using
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ioctls.
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compress_cache Support to use address space of a filesystem managed inode to
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cache compressed block, in order to improve cache hit ratio of
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random read.
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inlinecrypt When possible, encrypt/decrypt the contents of encrypted
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files using the blk-crypto framework rather than
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filesystem-layer encryption. This allows the use of
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@ -12,9 +12,11 @@
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#include <linux/lzo.h>
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#include <linux/lz4.h>
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#include <linux/zstd.h>
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#include <linux/pagevec.h>
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#include "f2fs.h"
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#include "node.h"
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#include "segment.h"
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#include <trace/events/f2fs.h>
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static struct kmem_cache *cic_entry_slab;
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@ -736,7 +738,7 @@ out:
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return ret;
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}
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static void f2fs_decompress_cluster(struct decompress_io_ctx *dic)
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void f2fs_decompress_cluster(struct decompress_io_ctx *dic)
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{
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struct f2fs_sb_info *sbi = F2FS_I_SB(dic->inode);
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struct f2fs_inode_info *fi = F2FS_I(dic->inode);
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@ -835,7 +837,8 @@ out_end_io:
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* page being waited on in the cluster, and if so, it decompresses the cluster
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* (or in the case of a failure, cleans up without actually decompressing).
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*/
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void f2fs_end_read_compressed_page(struct page *page, bool failed)
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void f2fs_end_read_compressed_page(struct page *page, bool failed,
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block_t blkaddr)
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{
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struct decompress_io_ctx *dic =
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(struct decompress_io_ctx *)page_private(page);
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@ -845,6 +848,9 @@ void f2fs_end_read_compressed_page(struct page *page, bool failed)
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if (failed)
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WRITE_ONCE(dic->failed, true);
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else if (blkaddr)
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f2fs_cache_compressed_page(sbi, page,
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dic->inode->i_ino, blkaddr);
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if (atomic_dec_and_test(&dic->remaining_pages))
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f2fs_decompress_cluster(dic);
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@ -1660,6 +1666,164 @@ void f2fs_put_page_dic(struct page *page)
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f2fs_put_dic(dic);
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}
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const struct address_space_operations f2fs_compress_aops = {
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.releasepage = f2fs_release_page,
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.invalidatepage = f2fs_invalidate_page,
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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_page(struct f2fs_sb_info *sbi, block_t blkaddr)
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{
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if (!sbi->compress_inode)
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return;
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invalidate_mapping_pages(COMPRESS_MAPPING(sbi), blkaddr, blkaddr);
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}
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void f2fs_cache_compressed_page(struct f2fs_sb_info *sbi, struct page *page,
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nid_t ino, block_t blkaddr)
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{
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struct page *cpage;
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int ret;
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if (!test_opt(sbi, COMPRESS_CACHE))
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return;
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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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return;
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cpage = find_get_page(COMPRESS_MAPPING(sbi), blkaddr);
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if (cpage) {
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f2fs_put_page(cpage, 0);
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return;
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}
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cpage = alloc_page(__GFP_NOWARN | __GFP_IO);
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if (!cpage)
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return;
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ret = add_to_page_cache_lru(cpage, COMPRESS_MAPPING(sbi),
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blkaddr, GFP_NOFS);
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if (ret) {
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f2fs_put_page(cpage, 0);
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return;
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}
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set_page_private_data(cpage, ino);
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if (!f2fs_is_valid_blkaddr(sbi, blkaddr, DATA_GENERIC_ENHANCE_READ))
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goto out;
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memcpy(page_address(cpage), page_address(page), PAGE_SIZE);
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SetPageUptodate(cpage);
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out:
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f2fs_put_page(cpage, 1);
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}
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bool f2fs_load_compressed_page(struct f2fs_sb_info *sbi, struct page *page,
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block_t blkaddr)
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{
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struct page *cpage;
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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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cpage = f2fs_pagecache_get_page(COMPRESS_MAPPING(sbi),
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blkaddr, FGP_LOCK | FGP_NOWAIT, GFP_NOFS);
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if (cpage) {
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if (PageUptodate(cpage)) {
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atomic_inc(&sbi->compress_page_hit);
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memcpy(page_address(page),
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page_address(cpage), PAGE_SIZE);
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hitted = true;
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}
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f2fs_put_page(cpage, 1);
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}
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return hitted;
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}
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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 = sbi->compress_inode->i_mapping;
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struct pagevec pvec;
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pgoff_t index = 0;
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pgoff_t end = MAX_BLKADDR(sbi);
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if (!mapping->nrpages)
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return;
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pagevec_init(&pvec);
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do {
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unsigned int nr_pages;
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int i;
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nr_pages = pagevec_lookup_range(&pvec, mapping,
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&index, end - 1);
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if (!nr_pages)
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break;
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for (i = 0; i < nr_pages; i++) {
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struct page *page = pvec.pages[i];
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if (page->index > end)
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break;
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lock_page(page);
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if (page->mapping != mapping) {
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unlock_page(page);
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continue;
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}
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if (ino != get_page_private_data(page)) {
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unlock_page(page);
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continue;
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}
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generic_error_remove_page(mapping, page);
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unlock_page(page);
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}
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pagevec_release(&pvec);
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cond_resched();
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} while (index < end);
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}
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int f2fs_init_compress_inode(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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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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{
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dev_t dev = sbi->sb->s_bdev->bd_dev;
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@ -132,7 +132,7 @@ static void f2fs_finish_read_bio(struct bio *bio)
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if (f2fs_is_compressed_page(page)) {
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if (bio->bi_status)
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f2fs_end_read_compressed_page(page, true);
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f2fs_end_read_compressed_page(page, true, 0);
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f2fs_put_page_dic(page);
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continue;
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}
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@ -228,15 +228,19 @@ static void f2fs_handle_step_decompress(struct bio_post_read_ctx *ctx)
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struct bio_vec *bv;
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struct bvec_iter_all iter_all;
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bool all_compressed = true;
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block_t blkaddr = SECTOR_TO_BLOCK(ctx->bio->bi_iter.bi_sector);
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bio_for_each_segment_all(bv, ctx->bio, iter_all) {
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struct page *page = bv->bv_page;
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/* PG_error was set if decryption failed. */
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if (f2fs_is_compressed_page(page))
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f2fs_end_read_compressed_page(page, PageError(page));
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f2fs_end_read_compressed_page(page, PageError(page),
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blkaddr);
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else
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all_compressed = false;
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blkaddr++;
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}
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/*
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@ -1352,9 +1356,11 @@ alloc:
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old_blkaddr = dn->data_blkaddr;
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f2fs_allocate_data_block(sbi, NULL, old_blkaddr, &dn->data_blkaddr,
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&sum, seg_type, NULL);
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if (GET_SEGNO(sbi, old_blkaddr) != NULL_SEGNO)
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if (GET_SEGNO(sbi, old_blkaddr) != NULL_SEGNO) {
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invalidate_mapping_pages(META_MAPPING(sbi),
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old_blkaddr, old_blkaddr);
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f2fs_invalidate_compress_page(sbi, old_blkaddr);
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}
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f2fs_update_data_blkaddr(dn, dn->data_blkaddr);
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/*
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@ -2174,7 +2180,7 @@ int f2fs_read_multi_pages(struct compress_ctx *cc, struct bio **bio_ret,
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goto out_put_dnode;
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}
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for (i = 0; i < dic->nr_cpages; i++) {
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for (i = 0; i < cc->nr_cpages; i++) {
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struct page *page = dic->cpages[i];
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block_t blkaddr;
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struct bio_post_read_ctx *ctx;
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@ -2182,6 +2188,14 @@ int f2fs_read_multi_pages(struct compress_ctx *cc, struct bio **bio_ret,
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blkaddr = data_blkaddr(dn.inode, dn.node_page,
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dn.ofs_in_node + i + 1);
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f2fs_wait_on_block_writeback(inode, blkaddr);
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if (f2fs_load_compressed_page(sbi, page, blkaddr)) {
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if (atomic_dec_and_test(&dic->remaining_pages))
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f2fs_decompress_cluster(dic);
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continue;
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}
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if (bio && (!page_is_mergeable(sbi, bio,
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*last_block_in_bio, blkaddr) ||
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!f2fs_crypt_mergeable_bio(bio, inode, page->index, NULL))) {
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@ -2203,8 +2217,6 @@ submit_and_realloc:
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}
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}
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f2fs_wait_on_block_writeback(inode, blkaddr);
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if (bio_add_page(bio, page, blocksize, 0) < blocksize)
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goto submit_and_realloc;
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@ -3618,6 +3630,13 @@ void f2fs_invalidate_page(struct page *page, unsigned int offset,
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clear_page_private_gcing(page);
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if (test_opt(sbi, COMPRESS_CACHE)) {
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if (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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clear_page_private_data(page);
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}
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if (page_private_atomic(page))
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return f2fs_drop_inmem_page(inode, page);
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@ -3635,6 +3654,16 @@ int f2fs_release_page(struct page *page, gfp_t wait)
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if (page_private_atomic(page))
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return 0;
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if (test_opt(F2FS_P_SB(page), COMPRESS_CACHE)) {
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struct f2fs_sb_info *sbi = F2FS_P_SB(page);
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struct inode *inode = page->mapping->host;
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if (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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clear_page_private_data(page);
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}
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clear_page_private_gcing(page);
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detach_page_private(page);
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@ -152,6 +152,12 @@ static void update_general_status(struct f2fs_sb_info *sbi)
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si->node_pages = NODE_MAPPING(sbi)->nrpages;
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if (sbi->meta_inode)
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si->meta_pages = META_MAPPING(sbi)->nrpages;
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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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si->compress_page_hit = atomic_read(&sbi->compress_page_hit);
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}
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#endif
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si->nats = NM_I(sbi)->nat_cnt[TOTAL_NAT];
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si->dirty_nats = NM_I(sbi)->nat_cnt[DIRTY_NAT];
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si->sits = MAIN_SEGS(sbi);
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@ -309,6 +315,12 @@ get_cache:
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si->page_mem += (unsigned long long)npages << PAGE_SHIFT;
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}
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#ifdef CONFIG_F2FS_FS_COMPRESSION
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if (sbi->compress_inode) {
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unsigned npages = COMPRESS_MAPPING(sbi)->nrpages;
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si->page_mem += (unsigned long long)npages << PAGE_SHIFT;
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}
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#endif
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}
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static int stat_show(struct seq_file *s, void *v)
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@ -476,6 +488,7 @@ static int stat_show(struct seq_file *s, void *v)
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"volatile IO: %4d (Max. %4d)\n",
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si->inmem_pages, si->aw_cnt, si->max_aw_cnt,
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si->vw_cnt, si->max_vw_cnt);
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seq_printf(s, " - compress: %4d, hit:%8d\n", si->compress_pages, si->compress_page_hit);
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seq_printf(s, " - nodes: %4d in %4d\n",
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si->ndirty_node, si->node_pages);
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seq_printf(s, " - dents: %4d in dirs:%4d (%4d)\n",
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|
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@ -98,6 +98,7 @@ extern const char *f2fs_fault_name[FAULT_MAX];
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#define F2FS_MOUNT_ATGC 0x08000000
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#define F2FS_MOUNT_MERGE_CHECKPOINT 0x10000000
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#define F2FS_MOUNT_GC_MERGE 0x20000000
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#define F2FS_MOUNT_COMPRESS_CACHE 0x40000000
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#define F2FS_OPTION(sbi) ((sbi)->mount_opt)
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#define clear_opt(sbi, option) (F2FS_OPTION(sbi).opt &= ~F2FS_MOUNT_##option)
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@ -1374,6 +1375,37 @@ PAGE_PRIVATE_CLEAR_FUNC(gcing, ONGOING_MIGRATION);
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PAGE_PRIVATE_CLEAR_FUNC(atomic, ATOMIC_WRITE);
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PAGE_PRIVATE_CLEAR_FUNC(dummy, DUMMY_WRITE);
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static inline unsigned long get_page_private_data(struct page *page)
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{
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unsigned long data = page_private(page);
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if (!test_bit(PAGE_PRIVATE_NOT_POINTER, &data))
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return 0;
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return data >> PAGE_PRIVATE_MAX;
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}
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static inline void set_page_private_data(struct page *page, unsigned long data)
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{
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if (!PagePrivate(page)) {
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get_page(page);
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SetPagePrivate(page);
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}
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set_bit(PAGE_PRIVATE_NOT_POINTER, &page_private(page));
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page_private(page) |= data << PAGE_PRIVATE_MAX;
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}
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static inline void clear_page_private_data(struct page *page)
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{
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page_private(page) &= (1 << PAGE_PRIVATE_MAX) - 1;
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if (page_private(page) == 1 << PAGE_PRIVATE_NOT_POINTER) {
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set_page_private(page, 0);
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if (PagePrivate(page)) {
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ClearPagePrivate(page);
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put_page(page);
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}
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}
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}
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/* For compression */
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enum compress_algorithm_type {
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COMPRESS_LZO,
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@ -1388,6 +1420,9 @@ enum compress_flag {
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COMPRESS_MAX_FLAG,
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};
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#define COMPRESS_WATERMARK 20
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#define COMPRESS_PERCENT 20
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#define COMPRESS_DATA_RESERVED_SIZE 4
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struct compress_data {
|
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__le32 clen; /* compressed data size */
|
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|
|
@ -1700,6 +1735,12 @@ struct f2fs_sb_info {
|
|||
u64 compr_written_block;
|
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u64 compr_saved_block;
|
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u32 compr_new_inode;
|
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|
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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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#endif
|
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};
|
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|
||||
|
|
@ -3671,7 +3712,8 @@ struct f2fs_stat_info {
|
|||
unsigned int bimodal, avg_vblocks;
|
||||
int util_free, util_valid, util_invalid;
|
||||
int rsvd_segs, overp_segs;
|
||||
int dirty_count, node_pages, meta_pages;
|
||||
int dirty_count, node_pages, meta_pages, compress_pages;
|
||||
int compress_page_hit;
|
||||
int prefree_count, call_count, cp_count, bg_cp_count;
|
||||
int tot_segs, node_segs, data_segs, free_segs, free_secs;
|
||||
int bg_node_segs, bg_data_segs;
|
||||
|
|
@ -4007,7 +4049,9 @@ void f2fs_compress_write_end_io(struct bio *bio, struct page *page);
|
|||
bool f2fs_is_compress_backend_ready(struct inode *inode);
|
||||
int f2fs_init_compress_mempool(void);
|
||||
void f2fs_destroy_compress_mempool(void);
|
||||
void f2fs_end_read_compressed_page(struct page *page, bool failed);
|
||||
void f2fs_decompress_cluster(struct decompress_io_ctx *dic);
|
||||
void f2fs_end_read_compressed_page(struct page *page, bool failed,
|
||||
block_t blkaddr);
|
||||
bool f2fs_cluster_is_empty(struct compress_ctx *cc);
|
||||
bool f2fs_cluster_can_merge_page(struct compress_ctx *cc, pgoff_t index);
|
||||
void f2fs_compress_ctx_add_page(struct compress_ctx *cc, struct page *page);
|
||||
|
|
@ -4025,10 +4069,19 @@ void f2fs_put_page_dic(struct page *page);
|
|||
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);
|
||||
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_page(struct f2fs_sb_info *sbi, block_t blkaddr);
|
||||
void f2fs_cache_compressed_page(struct f2fs_sb_info *sbi, struct page *page,
|
||||
nid_t ino, block_t blkaddr);
|
||||
bool f2fs_load_compressed_page(struct f2fs_sb_info *sbi, struct page *page,
|
||||
block_t blkaddr);
|
||||
void f2fs_invalidate_compress_pages(struct f2fs_sb_info *sbi, nid_t ino);
|
||||
#define inc_compr_inode_stat(inode) \
|
||||
do { \
|
||||
struct f2fs_sb_info *sbi = F2FS_I_SB(inode); \
|
||||
|
|
@ -4057,7 +4110,9 @@ static inline struct page *f2fs_compress_control_page(struct page *page)
|
|||
}
|
||||
static inline int f2fs_init_compress_mempool(void) { return 0; }
|
||||
static inline void f2fs_destroy_compress_mempool(void) { }
|
||||
static inline void f2fs_end_read_compressed_page(struct page *page, bool failed)
|
||||
static inline void f2fs_decompress_cluster(struct decompress_io_ctx *dic) { }
|
||||
static inline void f2fs_end_read_compressed_page(struct page *page,
|
||||
bool failed, block_t blkaddr)
|
||||
{
|
||||
WARN_ON_ONCE(1);
|
||||
}
|
||||
|
|
@ -4065,10 +4120,20 @@ static inline void f2fs_put_page_dic(struct page *page)
|
|||
{
|
||||
WARN_ON_ONCE(1);
|
||||
}
|
||||
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 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; }
|
||||
static inline void f2fs_destroy_compress_cache(void) { }
|
||||
static inline void f2fs_invalidate_compress_page(struct f2fs_sb_info *sbi,
|
||||
block_t blkaddr) { }
|
||||
static inline void f2fs_cache_compressed_page(struct f2fs_sb_info *sbi,
|
||||
struct page *page, nid_t ino, block_t blkaddr) { }
|
||||
static inline bool f2fs_load_compressed_page(struct f2fs_sb_info *sbi,
|
||||
struct page *page, block_t blkaddr) { return false; }
|
||||
static inline void f2fs_invalidate_compress_pages(struct f2fs_sb_info *sbi,
|
||||
nid_t ino) { }
|
||||
#define inc_compr_inode_stat(inode) do { } while (0)
|
||||
#endif
|
||||
|
||||
|
|
|
|||
|
|
@ -1261,6 +1261,7 @@ static int move_data_block(struct inode *inode, block_t bidx,
|
|||
f2fs_put_page(mpage, 1);
|
||||
invalidate_mapping_pages(META_MAPPING(fio.sbi),
|
||||
fio.old_blkaddr, fio.old_blkaddr);
|
||||
f2fs_invalidate_compress_page(fio.sbi, fio.old_blkaddr);
|
||||
|
||||
set_page_dirty(fio.encrypted_page);
|
||||
if (clear_page_dirty_for_io(fio.encrypted_page))
|
||||
|
|
|
|||
|
|
@ -18,6 +18,10 @@
|
|||
|
||||
#include <trace/events/f2fs.h>
|
||||
|
||||
#ifdef CONFIG_F2FS_FS_COMPRESSION
|
||||
extern const struct address_space_operations f2fs_compress_aops;
|
||||
#endif
|
||||
|
||||
void f2fs_mark_inode_dirty_sync(struct inode *inode, bool sync)
|
||||
{
|
||||
if (is_inode_flag_set(inode, FI_NEW_INODE))
|
||||
|
|
@ -494,6 +498,11 @@ struct inode *f2fs_iget(struct super_block *sb, unsigned long ino)
|
|||
if (ino == F2FS_NODE_INO(sbi) || ino == F2FS_META_INO(sbi))
|
||||
goto make_now;
|
||||
|
||||
#ifdef CONFIG_F2FS_FS_COMPRESSION
|
||||
if (ino == F2FS_COMPRESS_INO(sbi))
|
||||
goto make_now;
|
||||
#endif
|
||||
|
||||
ret = do_read_inode(inode);
|
||||
if (ret)
|
||||
goto bad_inode;
|
||||
|
|
@ -504,6 +513,12 @@ make_now:
|
|||
} else if (ino == F2FS_META_INO(sbi)) {
|
||||
inode->i_mapping->a_ops = &f2fs_meta_aops;
|
||||
mapping_set_gfp_mask(inode->i_mapping, GFP_NOFS);
|
||||
} else if (ino == F2FS_COMPRESS_INO(sbi)) {
|
||||
#ifdef CONFIG_F2FS_FS_COMPRESSION
|
||||
inode->i_mapping->a_ops = &f2fs_compress_aops;
|
||||
#endif
|
||||
mapping_set_gfp_mask(inode->i_mapping,
|
||||
GFP_NOFS | __GFP_HIGHMEM | __GFP_MOVABLE);
|
||||
} else if (S_ISREG(inode->i_mode)) {
|
||||
inode->i_op = &f2fs_file_inode_operations;
|
||||
inode->i_fop = &f2fs_file_operations;
|
||||
|
|
@ -723,8 +738,12 @@ void f2fs_evict_inode(struct inode *inode)
|
|||
trace_f2fs_evict_inode(inode);
|
||||
truncate_inode_pages_final(&inode->i_data);
|
||||
|
||||
if (test_opt(sbi, COMPRESS_CACHE) && f2fs_compressed_file(inode))
|
||||
f2fs_invalidate_compress_pages(sbi, inode->i_ino);
|
||||
|
||||
if (inode->i_ino == F2FS_NODE_INO(sbi) ||
|
||||
inode->i_ino == F2FS_META_INO(sbi))
|
||||
inode->i_ino == F2FS_META_INO(sbi) ||
|
||||
inode->i_ino == F2FS_COMPRESS_INO(sbi))
|
||||
goto out_clear;
|
||||
|
||||
f2fs_bug_on(sbi, get_dirty_pages(inode));
|
||||
|
|
|
|||
|
|
@ -97,6 +97,20 @@ bool f2fs_available_free_memory(struct f2fs_sb_info *sbi, int type)
|
|||
mem_size = (atomic_read(&dcc->discard_cmd_cnt) *
|
||||
sizeof(struct discard_cmd)) >> PAGE_SHIFT;
|
||||
res = mem_size < (avail_ram * nm_i->ram_thresh / 100);
|
||||
} else if (type == COMPRESS_PAGE) {
|
||||
#ifdef CONFIG_F2FS_FS_COMPRESSION
|
||||
unsigned long free_ram = val.freeram;
|
||||
|
||||
/*
|
||||
* free memory is lower than watermark or cached page count
|
||||
* exceed threshold, deny caching compress page.
|
||||
*/
|
||||
res = (free_ram > avail_ram * sbi->compress_watermark / 100) &&
|
||||
(COMPRESS_MAPPING(sbi)->nrpages <
|
||||
free_ram * sbi->compress_percent / 100);
|
||||
#else
|
||||
res = false;
|
||||
#endif
|
||||
} else {
|
||||
if (!sbi->sb->s_bdi->wb.dirty_exceeded)
|
||||
return true;
|
||||
|
|
|
|||
|
|
@ -148,6 +148,7 @@ enum mem_type {
|
|||
EXTENT_CACHE, /* indicates extent cache */
|
||||
INMEM_PAGES, /* indicates inmemory pages */
|
||||
DISCARD_CACHE, /* indicates memory of cached discard cmds */
|
||||
COMPRESS_PAGE, /* indicates memory of cached compressed pages */
|
||||
BASE_CHECK, /* check kernel status */
|
||||
};
|
||||
|
||||
|
|
|
|||
|
|
@ -2322,6 +2322,7 @@ void f2fs_invalidate_blocks(struct f2fs_sb_info *sbi, block_t addr)
|
|||
return;
|
||||
|
||||
invalidate_mapping_pages(META_MAPPING(sbi), addr, addr);
|
||||
f2fs_invalidate_compress_page(sbi, addr);
|
||||
|
||||
/* add it into sit main buffer */
|
||||
down_write(&sit_i->sentry_lock);
|
||||
|
|
@ -3469,9 +3470,11 @@ static void do_write_page(struct f2fs_summary *sum, struct f2fs_io_info *fio)
|
|||
reallocate:
|
||||
f2fs_allocate_data_block(fio->sbi, fio->page, fio->old_blkaddr,
|
||||
&fio->new_blkaddr, sum, type, fio);
|
||||
if (GET_SEGNO(fio->sbi, fio->old_blkaddr) != NULL_SEGNO)
|
||||
if (GET_SEGNO(fio->sbi, fio->old_blkaddr) != NULL_SEGNO) {
|
||||
invalidate_mapping_pages(META_MAPPING(fio->sbi),
|
||||
fio->old_blkaddr, fio->old_blkaddr);
|
||||
f2fs_invalidate_compress_page(fio->sbi, fio->old_blkaddr);
|
||||
}
|
||||
|
||||
/* writeout dirty page into bdev */
|
||||
f2fs_submit_page_write(fio);
|
||||
|
|
@ -3661,6 +3664,7 @@ void f2fs_do_replace_block(struct f2fs_sb_info *sbi, struct f2fs_summary *sum,
|
|||
if (GET_SEGNO(sbi, old_blkaddr) != NULL_SEGNO) {
|
||||
invalidate_mapping_pages(META_MAPPING(sbi),
|
||||
old_blkaddr, old_blkaddr);
|
||||
f2fs_invalidate_compress_page(sbi, old_blkaddr);
|
||||
if (!from_gc)
|
||||
update_segment_mtime(sbi, old_blkaddr, 0);
|
||||
update_sit_entry(sbi, old_blkaddr, -1);
|
||||
|
|
|
|||
|
|
@ -150,6 +150,7 @@ enum {
|
|||
Opt_compress_extension,
|
||||
Opt_compress_chksum,
|
||||
Opt_compress_mode,
|
||||
Opt_compress_cache,
|
||||
Opt_atgc,
|
||||
Opt_gc_merge,
|
||||
Opt_nogc_merge,
|
||||
|
|
@ -224,6 +225,7 @@ static match_table_t f2fs_tokens = {
|
|||
{Opt_compress_extension, "compress_extension=%s"},
|
||||
{Opt_compress_chksum, "compress_chksum"},
|
||||
{Opt_compress_mode, "compress_mode=%s"},
|
||||
{Opt_compress_cache, "compress_cache"},
|
||||
{Opt_atgc, "atgc"},
|
||||
{Opt_gc_merge, "gc_merge"},
|
||||
{Opt_nogc_merge, "nogc_merge"},
|
||||
|
|
@ -1066,12 +1068,16 @@ static int parse_options(struct super_block *sb, char *options, bool is_remount)
|
|||
}
|
||||
kfree(name);
|
||||
break;
|
||||
case Opt_compress_cache:
|
||||
set_opt(sbi, COMPRESS_CACHE);
|
||||
break;
|
||||
#else
|
||||
case Opt_compress_algorithm:
|
||||
case Opt_compress_log_size:
|
||||
case Opt_compress_extension:
|
||||
case Opt_compress_chksum:
|
||||
case Opt_compress_mode:
|
||||
case Opt_compress_cache:
|
||||
f2fs_info(sbi, "compression options not supported");
|
||||
break;
|
||||
#endif
|
||||
|
|
@ -1409,6 +1415,8 @@ static void f2fs_put_super(struct super_block *sb)
|
|||
|
||||
f2fs_bug_on(sbi, sbi->fsync_node_num);
|
||||
|
||||
f2fs_destroy_compress_inode(sbi);
|
||||
|
||||
iput(sbi->node_inode);
|
||||
sbi->node_inode = NULL;
|
||||
|
||||
|
|
@ -1678,6 +1686,9 @@ static inline void f2fs_show_compress_options(struct seq_file *seq,
|
|||
seq_printf(seq, ",compress_mode=%s", "fs");
|
||||
else if (F2FS_OPTION(sbi).compress_mode == COMPR_MODE_USER)
|
||||
seq_printf(seq, ",compress_mode=%s", "user");
|
||||
|
||||
if (test_opt(sbi, COMPRESS_CACHE))
|
||||
seq_puts(seq, ",compress_cache");
|
||||
}
|
||||
#endif
|
||||
|
||||
|
|
@ -1959,6 +1970,7 @@ static int f2fs_remount(struct super_block *sb, int *flags, char *data)
|
|||
bool disable_checkpoint = test_opt(sbi, DISABLE_CHECKPOINT);
|
||||
bool no_io_align = !F2FS_IO_ALIGNED(sbi);
|
||||
bool no_atgc = !test_opt(sbi, ATGC);
|
||||
bool no_compress_cache = !test_opt(sbi, COMPRESS_CACHE);
|
||||
bool checkpoint_changed;
|
||||
#ifdef CONFIG_QUOTA
|
||||
int i, j;
|
||||
|
|
@ -2056,6 +2068,12 @@ static int f2fs_remount(struct super_block *sb, int *flags, char *data)
|
|||
goto restore_opts;
|
||||
}
|
||||
|
||||
if (no_compress_cache == !!test_opt(sbi, COMPRESS_CACHE)) {
|
||||
err = -EINVAL;
|
||||
f2fs_warn(sbi, "switch compress_cache option is not allowed");
|
||||
goto restore_opts;
|
||||
}
|
||||
|
||||
if ((*flags & SB_RDONLY) && test_opt(sbi, DISABLE_CHECKPOINT)) {
|
||||
err = -EINVAL;
|
||||
f2fs_warn(sbi, "disabling checkpoint not compatible with read-only");
|
||||
|
|
@ -3965,10 +3983,14 @@ try_onemore:
|
|||
goto free_node_inode;
|
||||
}
|
||||
|
||||
err = f2fs_register_sysfs(sbi);
|
||||
err = f2fs_init_compress_inode(sbi);
|
||||
if (err)
|
||||
goto free_root_inode;
|
||||
|
||||
err = f2fs_register_sysfs(sbi);
|
||||
if (err)
|
||||
goto free_compress_inode;
|
||||
|
||||
#ifdef CONFIG_QUOTA
|
||||
/* Enable quota usage during mount */
|
||||
if (f2fs_sb_has_quota_ino(sbi) && !f2fs_readonly(sb)) {
|
||||
|
|
@ -4109,6 +4131,8 @@ free_meta:
|
|||
/* 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;
|
||||
|
|
@ -4187,6 +4211,15 @@ static void kill_f2fs_super(struct super_block *sb)
|
|||
f2fs_stop_gc_thread(sbi);
|
||||
f2fs_stop_discard_thread(sbi);
|
||||
|
||||
#ifdef CONFIG_F2FS_FS_COMPRESSION
|
||||
/*
|
||||
* latter evict_inode() can bypass checking and invalidating
|
||||
* compress inode cache.
|
||||
*/
|
||||
if (test_opt(sbi, COMPRESS_CACHE))
|
||||
truncate_inode_pages_final(COMPRESS_MAPPING(sbi));
|
||||
#endif
|
||||
|
||||
if (is_sbi_flag_set(sbi, SBI_IS_DIRTY) ||
|
||||
!is_set_ckpt_flags(sbi, CP_UMOUNT_FLAG)) {
|
||||
struct cp_control cpc = {
|
||||
|
|
|
|||
|
|
@ -34,6 +34,7 @@
|
|||
#define F2FS_ROOT_INO(sbi) ((sbi)->root_ino_num)
|
||||
#define F2FS_NODE_INO(sbi) ((sbi)->node_ino_num)
|
||||
#define F2FS_META_INO(sbi) ((sbi)->meta_ino_num)
|
||||
#define F2FS_COMPRESS_INO(sbi) (NM_I(sbi)->max_nid)
|
||||
|
||||
#define F2FS_MAX_QUOTAS 3
|
||||
|
||||
|
|
|
|||
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