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f2fs: introduce update_meta_page

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Add a help function update_meta_page() to update meta page with specified
buffer.

Signed-off-by: Chao Yu <chao2.yu@samsung.com>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
This commit is contained in:
Chao Yu
2015-05-19 17:40:04 +08:00
committed by Jaegeuk Kim
parent cb5c94cf3a
commit 381722d2ac
3 changed files with 22 additions and 30 deletions
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27
fs/f2fs/segment.c
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@@ -517,12 +517,8 @@ void discard_next_dnode(struct f2fs_sb_info *sbi, block_t blkaddr)
err = f2fs_issue_discard(sbi, blkaddr, 1);
}
if (err) {
struct page *page = grab_meta_page(sbi, blkaddr);
memset(page_address(page), 0, F2FS_BLKSIZE);
set_page_dirty(page);
f2fs_put_page(page, 1);
}
if (err)
update_meta_page(sbi, NULL, blkaddr);
}
static void __add_discard_entry(struct f2fs_sb_info *sbi,
@@ -801,14 +797,23 @@ struct page *get_sum_page(struct f2fs_sb_info *sbi, unsigned int segno)
return get_meta_page(sbi, GET_SUM_BLOCK(sbi, segno));
}
void update_meta_page(struct f2fs_sb_info *sbi, void *src, block_t blk_addr)
{
struct page *page = grab_meta_page(sbi, blk_addr);
void *dst = page_address(page);
if (src)
memcpy(dst, src, PAGE_CACHE_SIZE);
else
memset(dst, 0, PAGE_CACHE_SIZE);
set_page_dirty(page);
f2fs_put_page(page, 1);
}
static void write_sum_page(struct f2fs_sb_info *sbi,
struct f2fs_summary_block *sum_blk, block_t blk_addr)
{
struct page *page = grab_meta_page(sbi, blk_addr);
void *kaddr = page_address(page);
memcpy(kaddr, sum_blk, PAGE_CACHE_SIZE);
set_page_dirty(page);
f2fs_put_page(page, 1);
update_meta_page(sbi, (void *)sum_blk, blk_addr);
}
static int is_next_segment_free(struct f2fs_sb_info *sbi, int type)