Messages in this thread Patch in this message |  | | Subject | Re: [RFC PATCH v5] f2fs: support data compression | From | Chao Yu <> | Date | Mon, 23 Dec 2019 11:32:14 +0800 |
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Hi Jaegeuk,
Sorry for the delay.
On 2019/12/19 5:46, Jaegeuk Kim wrote: > Hi Chao, > > I still see some diffs from my latest testing version, so please check anything > that you made additionally from here. > > https://git.kernel.org/pub/scm/linux/kernel/git/jaegeuk/f2fs.git/commit/?h=dev&id=25d18e19a91e60837d36368ee939db13fd16dc64
I've checked the diff and picked up valid parts, could you please check and comment on it?
--- fs/f2fs/compress.c | 8 ++++---- fs/f2fs/data.c | 18 +++++++++++++++--- fs/f2fs/f2fs.h | 3 +++ fs/f2fs/file.c | 1 - 4 files changed, 22 insertions(+), 8 deletions(-)
diff --git a/fs/f2fs/compress.c b/fs/f2fs/compress.c index af23ed6deffd..1bc86a54ad71 100644 --- a/fs/f2fs/compress.c +++ b/fs/f2fs/compress.c @@ -593,7 +593,7 @@ static int prepare_compress_overwrite(struct compress_ctx *cc, fgp_flag, GFP_NOFS); if (!page) { ret = -ENOMEM; - goto unlock_pages; + goto release_pages; }
if (PageUptodate(page)) @@ -608,13 +608,13 @@ static int prepare_compress_overwrite(struct compress_ctx *cc, ret = f2fs_read_multi_pages(cc, &bio, cc->cluster_size, &last_block_in_bio, false); if (ret) - goto release_pages; + goto unlock_pages; if (bio) f2fs_submit_bio(sbi, bio, DATA);
ret = f2fs_init_compress_ctx(cc); if (ret) - goto release_pages; + goto unlock_pages; }
for (i = 0; i < cc->cluster_size; i++) { @@ -762,7 +762,7 @@ static int f2fs_write_compressed_pages(struct compress_ctx *cc, if (err) goto out_unlock_op;
- psize = (cc->rpages[last_index]->index + 1) << PAGE_SHIFT; + psize = (loff_t)(cc->rpages[last_index]->index + 1) << PAGE_SHIFT;
err = f2fs_get_node_info(fio.sbi, dn.nid, &ni); if (err) diff --git a/fs/f2fs/data.c b/fs/f2fs/data.c index 19cd03450066..f1f5c701228d 100644 --- a/fs/f2fs/data.c +++ b/fs/f2fs/data.c @@ -184,13 +184,18 @@ static void f2fs_decompress_work(struct bio_post_read_ctx *ctx) }
#ifdef CONFIG_F2FS_FS_COMPRESSION +void f2fs_verify_pages(struct page **rpages, unsigned int cluster_size) +{ + f2fs_decompress_end_io(rpages, cluster_size, false, true); +} + static void f2fs_verify_bio(struct bio *bio) { struct page *page = bio_first_page_all(bio); struct decompress_io_ctx *dic = (struct decompress_io_ctx *)page_private(page);
- f2fs_decompress_end_io(dic->rpages, dic->cluster_size, false, true); + f2fs_verify_pages(dic->rpages, dic->cluster_size); f2fs_free_dic(dic); } #endif @@ -507,10 +512,16 @@ static bool __has_merged_page(struct bio *bio, struct inode *inode, bio_for_each_segment_all(bvec, bio, iter_all) { struct page *target = bvec->bv_page;
- if (fscrypt_is_bounce_page(target)) + if (fscrypt_is_bounce_page(target)) { target = fscrypt_pagecache_page(target); - if (f2fs_is_compressed_page(target)) + if (IS_ERR(target)) + continue; + } + if (f2fs_is_compressed_page(target)) { target = f2fs_compress_control_page(target); + if (IS_ERR(target)) + continue; + }
if (inode && inode == target->mapping->host) return true; @@ -2039,6 +2050,7 @@ int f2fs_read_multi_pages(struct compress_ctx *cc, struct bio **bio_ret, if (ret) goto out;
+ /* cluster was overwritten as normal cluster */ if (dn.data_blkaddr != COMPRESS_ADDR) goto out;
diff --git a/fs/f2fs/f2fs.h b/fs/f2fs/f2fs.h index 5d55cef66410..17d2af4eeafb 100644 --- a/fs/f2fs/f2fs.h +++ b/fs/f2fs/f2fs.h @@ -2719,6 +2719,7 @@ static inline void set_compress_context(struct inode *inode) 1 << F2FS_I(inode)->i_log_cluster_size; F2FS_I(inode)->i_flags |= F2FS_COMPR_FL; set_inode_flag(inode, FI_COMPRESSED_FILE); + stat_inc_compr_inode(inode); }
static inline unsigned int addrs_per_inode(struct inode *inode) @@ -3961,6 +3962,8 @@ static inline bool f2fs_force_buffered_io(struct inode *inode, return true; if (f2fs_is_multi_device(sbi)) return true; + if (f2fs_compressed_file(inode)) + return true; /* * for blkzoned device, fallback direct IO to buffered IO, so * all IOs can be serialized by log-structured write. diff --git a/fs/f2fs/file.c b/fs/f2fs/file.c index bde5612f37f5..9aeadf14413c 100644 --- a/fs/f2fs/file.c +++ b/fs/f2fs/file.c @@ -1828,7 +1828,6 @@ static int f2fs_setflags_common(struct inode *inode, u32 iflags, u32 mask) return -EINVAL;
set_compress_context(inode); - stat_inc_compr_inode(inode); } } if ((iflags ^ fi->i_flags) & F2FS_NOCOMP_FL) { -- 2.18.0.rc1 Thanks,
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