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Commit 381722d2 authored by Chao Yu's avatar Chao Yu Committed by Jaegeuk Kim
Browse files

f2fs: introduce update_meta_page 



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

Signed-off-by: default avatarChao Yu <chao2.yu@samsung.com>
Signed-off-by: default avatarJaegeuk Kim <jaegeuk@kernel.org>
parent cb5c94cf

fs/f2fs/checkpoint.c

+6 −20
Original line number Diff line number Diff line
@@ -888,10 +888,8 @@ static void do_checkpoint(struct f2fs_sb_info *sbi, struct cp_control *cpc) 
	unsigned long orphan_num = sbi->im[ORPHAN_INO].ino_num;

	nid_t last_nid = nm_i->next_scan_nid;

	block_t start_blk;

	struct page *cp_page;

	unsigned int data_sum_blocks, orphan_blocks;

	__u32 crc32 = 0;

	void *kaddr;

	int i;

	int cp_payload_blks = __cp_payload(sbi);
@@ -988,19 +986,11 @@ static void do_checkpoint(struct f2fs_sb_info *sbi, struct cp_control *cpc) 
	start_blk = __start_cp_addr(sbi);



	/* write out checkpoint buffer at block 0 */

	cp_page = grab_meta_page(sbi, start_blk++);

	kaddr = page_address(cp_page);

	memcpy(kaddr, ckpt, F2FS_BLKSIZE);

	set_page_dirty(cp_page);

	f2fs_put_page(cp_page, 1);

	update_meta_page(sbi, ckpt, start_blk++);



	for (i = 1; i < 1 + cp_payload_blks; i++) {

		cp_page = grab_meta_page(sbi, start_blk++);

		kaddr = page_address(cp_page);

		memcpy(kaddr, (char *)ckpt + i * F2FS_BLKSIZE, F2FS_BLKSIZE);

		set_page_dirty(cp_page);

		f2fs_put_page(cp_page, 1);

	}

	for (i = 1; i < 1 + cp_payload_blks; i++)

		update_meta_page(sbi, (char *)ckpt + i * F2FS_BLKSIZE,

							start_blk++);



	if (orphan_num) {

		write_orphan_inodes(sbi, start_blk);
@@ -1015,11 +1005,7 @@ static void do_checkpoint(struct f2fs_sb_info *sbi, struct cp_control *cpc) 
	}



	/* writeout checkpoint block */

	cp_page = grab_meta_page(sbi, start_blk);

	kaddr = page_address(cp_page);

	memcpy(kaddr, ckpt, F2FS_BLKSIZE);

	set_page_dirty(cp_page);

	f2fs_put_page(cp_page, 1);

	update_meta_page(sbi, ckpt, start_blk);



	/* wait for previous submitted node/meta pages writeback */

	wait_on_all_pages_writeback(sbi);

fs/f2fs/f2fs.h

+1 −0
Original line number Diff line number Diff line
@@ -1690,6 +1690,7 @@ int npages_for_summary_flush(struct f2fs_sb_info *, bool); 
void allocate_new_segments(struct f2fs_sb_info *);

int f2fs_trim_fs(struct f2fs_sb_info *, struct fstrim_range *);

struct page *get_sum_page(struct f2fs_sb_info *, unsigned int);

void update_meta_page(struct f2fs_sb_info *, void *, block_t);

void write_meta_page(struct f2fs_sb_info *, struct page *);

void write_node_page(unsigned int, struct f2fs_io_info *);

void write_data_page(struct dnode_of_data *, struct f2fs_io_info *);

fs/f2fs/segment.c

+15 −10
Original line number Diff line number Diff line
@@ -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,
@@ -801,16 +797,25 @@ struct page *get_sum_page(struct f2fs_sb_info *sbi, unsigned int segno) 
	return get_meta_page(sbi, GET_SUM_BLOCK(sbi, segno));

}



static void write_sum_page(struct f2fs_sb_info *sbi,

			struct f2fs_summary_block *sum_blk, block_t blk_addr)

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 *kaddr = page_address(page);

	memcpy(kaddr, sum_blk, PAGE_CACHE_SIZE);

	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)

{

	update_meta_page(sbi, (void *)sum_blk, blk_addr);

}



static int is_next_segment_free(struct f2fs_sb_info *sbi, int type)

{

	struct curseg_info *curseg = CURSEG_I(sbi, type);