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f2fs: compress: use more readable atomic_t type for {cic,dic}.ref

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refcount_t type variable should never be less than one, so it's a
little bit hard to understand when we use it to indicate pending
compressed page count, let's change to use atomic_t for better
readability.

Signed-off-by: Chao Yu <yuchao0@huawei.com>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
This commit is contained in:
Chao Yu
2020-08-10 18:39:30 +08:00
committed by Jaegeuk Kim
parent 17d7648d9c
commit e6c3948de2
3 changed files with 10 additions and 10 deletions
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10
fs/f2fs/compress.c
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@@ -677,7 +677,7 @@ void f2fs_decompress_pages(struct bio *bio, struct page *page, bool verity)
if (bio->bi_status || PageError(page))
dic->failed = true;
if (refcount_dec_not_one(&dic->ref))
if (atomic_dec_return(&dic->pending_pages))
return;
trace_f2fs_decompress_pages_start(dic->inode, dic->cluster_idx,
@@ -746,7 +746,7 @@ destroy_decompress_ctx:
cops->destroy_decompress_ctx(dic);
out_free_dic:
if (verity)
refcount_set(&dic->ref, dic->nr_cpages);
atomic_set(&dic->pending_pages, dic->nr_cpages);
if (!verity)
f2fs_decompress_end_io(dic->rpages, dic->cluster_size,
ret, false);
@@ -1161,7 +1161,7 @@ static int f2fs_write_compressed_pages(struct compress_ctx *cc,
cic->magic = F2FS_COMPRESSED_PAGE_MAGIC;
cic->inode = inode;
refcount_set(&cic->ref, cc->nr_cpages);
atomic_set(&cic->pending_pages, cc->nr_cpages);
cic->rpages = f2fs_kzalloc(sbi, sizeof(struct page *) <<
cc->log_cluster_size, GFP_NOFS);
if (!cic->rpages)
@@ -1296,7 +1296,7 @@ void f2fs_compress_write_end_io(struct bio *bio, struct page *page)
dec_page_count(sbi, F2FS_WB_DATA);
if (refcount_dec_not_one(&cic->ref))
if (atomic_dec_return(&cic->pending_pages))
return;
for (i = 0; i < cic->nr_rpages; i++) {
@@ -1438,7 +1438,7 @@ struct decompress_io_ctx *f2fs_alloc_dic(struct compress_ctx *cc)
dic->magic = F2FS_COMPRESSED_PAGE_MAGIC;
dic->inode = cc->inode;
refcount_set(&dic->ref, cc->nr_cpages);
atomic_set(&dic->pending_pages, cc->nr_cpages);
dic->cluster_idx = cc->cluster_idx;
dic->cluster_size = cc->cluster_size;
dic->log_cluster_size = cc->log_cluster_size;