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Date: Tue, 19 May 2015 17:40:04 +0800
From: Chao Yu <chao2.yu@...sung.com>
To: Jaegeuk Kim <jaegeuk@...nel.org>,
Changman Lee <cm224.lee@...sung.com>
Cc: linux-f2fs-devel@...ts.sourceforge.net,
linux-kernel@...r.kernel.org
Subject: [PATCH 2/2] f2fs: introduce update_meta_page
Add a help function update_meta_page() to update meta page with specified
buffer.
Signed-off-by: Chao Yu <chao2.yu@...sung.com>
---
fs/f2fs/checkpoint.c | 26 ++++++--------------------
fs/f2fs/f2fs.h | 1 +
fs/f2fs/segment.c | 26 ++++++++++++++++----------
3 files changed, 23 insertions(+), 30 deletions(-)
diff --git a/fs/f2fs/checkpoint.c b/fs/f2fs/checkpoint.c
index 7b7a9d8..b70bbe1 100644
--- a/fs/f2fs/checkpoint.c
+++ b/fs/f2fs/checkpoint.c
@@ -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);
-
- 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);
- }
+ update_meta_page(sbi, ckpt, start_blk++);
+
+ 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);
diff --git a/fs/f2fs/f2fs.h b/fs/f2fs/f2fs.h
index 5119167..7e93fcf 100644
--- a/fs/f2fs/f2fs.h
+++ b/fs/f2fs/f2fs.h
@@ -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 *);
diff --git a/fs/f2fs/segment.c b/fs/f2fs/segment.c
index bdf874a..0b2bdd2 100644
--- a/fs/f2fs/segment.c
+++ b/fs/f2fs/segment.c
@@ -502,12 +502,8 @@ 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,
@@ -788,16 +784,26 @@ 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);
--
2.3.3
--
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