From: Chao Yu <yuchao0@huawei.com>
To: <jaegeuk@kernel.org>
Cc: <linux-f2fs-devel@lists.sourceforge.net>,
<linux-kernel@vger.kernel.org>, <chao@kernel.org>,
Chao Yu <yuchao0@huawei.com>
Subject: [PATCH] f2fs: clean up {cic,dic}.ref handling
Date: Sat, 28 Mar 2020 17:33:23 +0800 [thread overview]
Message-ID: <20200328093323.130902-1-yuchao0@huawei.com> (raw)
{cic,dic}.ref should be initialized to number of compressed pages,
let's initialize it directly rather than doing w/
f2fs_set_compressed_page().
Signed-off-by: Chao Yu <yuchao0@huawei.com>
---
fs/f2fs/compress.c | 16 ++++++----------
1 file changed, 6 insertions(+), 10 deletions(-)
diff --git a/fs/f2fs/compress.c b/fs/f2fs/compress.c
index 9cc279ea3bfb..c0e7ba245c74 100644
--- a/fs/f2fs/compress.c
+++ b/fs/f2fs/compress.c
@@ -55,7 +55,7 @@ bool f2fs_is_compressed_page(struct page *page)
}
static void f2fs_set_compressed_page(struct page *page,
- struct inode *inode, pgoff_t index, void *data, refcount_t *r)
+ struct inode *inode, pgoff_t index, void *data)
{
SetPagePrivate(page);
set_page_private(page, (unsigned long)data);
@@ -63,8 +63,6 @@ static void f2fs_set_compressed_page(struct page *page,
/* i_crypto_info and iv index */
page->index = index;
page->mapping = inode->i_mapping;
- if (r)
- refcount_inc(r);
}
static void f2fs_put_compressed_page(struct page *page)
@@ -662,7 +660,7 @@ void f2fs_decompress_pages(struct bio *bio, struct page *page, bool verity)
cops->destroy_decompress_ctx(dic);
out_free_dic:
if (verity)
- refcount_add(dic->nr_cpages - 1, &dic->ref);
+ refcount_set(&dic->ref, dic->nr_cpages);
if (!verity)
f2fs_decompress_end_io(dic->rpages, dic->cluster_size,
ret, false);
@@ -1067,7 +1065,7 @@ static int f2fs_write_compressed_pages(struct compress_ctx *cc,
cic->magic = F2FS_COMPRESSED_PAGE_MAGIC;
cic->inode = inode;
- refcount_set(&cic->ref, 1);
+ refcount_set(&cic->ref, cc->nr_cpages);
cic->rpages = f2fs_kzalloc(sbi, sizeof(struct page *) <<
cc->log_cluster_size, GFP_NOFS);
if (!cic->rpages)
@@ -1077,8 +1075,7 @@ static int f2fs_write_compressed_pages(struct compress_ctx *cc,
for (i = 0; i < cc->nr_cpages; i++) {
f2fs_set_compressed_page(cc->cpages[i], inode,
- cc->rpages[i + 1]->index,
- cic, i ? &cic->ref : NULL);
+ cc->rpages[i + 1]->index, cic);
fio.compressed_page = cc->cpages[i];
if (fio.encrypted) {
fio.page = cc->rpages[i + 1];
@@ -1328,7 +1325,7 @@ 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, 1);
+ refcount_set(&dic->ref, cc->nr_cpages);
dic->cluster_idx = cc->cluster_idx;
dic->cluster_size = cc->cluster_size;
dic->log_cluster_size = cc->log_cluster_size;
@@ -1352,8 +1349,7 @@ struct decompress_io_ctx *f2fs_alloc_dic(struct compress_ctx *cc)
goto out_free;
f2fs_set_compressed_page(page, cc->inode,
- start_idx + i + 1,
- dic, i ? &dic->ref : NULL);
+ start_idx + i + 1, dic);
dic->cpages[i] = page;
}
--
2.18.0.rc1
reply other threads:[~2020-03-28 9:33 UTC|newest]
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