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Date: Wed, 23 May 2018 22:25:08 +0800
From: Chao Yu <chao@...nel.org>
To: jaegeuk@...nel.org
Cc: linux-f2fs-devel@...ts.sourceforge.net,
linux-kernel@...r.kernel.org, Chao Yu <yuchao0@...wei.com>
Subject: [PATCH 1/2] f2fs: clean up with is_valid_blkaddr()
From: Chao Yu <yuchao0@...wei.com>
- rename is_valid_blkaddr() to is_valid_meta_blkaddr() for readability.
- introduce is_valid_blkaddr() for cleanup.
No logic change in this patch.
Signed-off-by: Chao Yu <yuchao0@...wei.com>
---
fs/f2fs/checkpoint.c | 4 ++--
fs/f2fs/data.c | 18 +++++-------------
fs/f2fs/f2fs.h | 9 ++++++++-
fs/f2fs/file.c | 2 +-
fs/f2fs/inode.c | 2 +-
fs/f2fs/node.c | 5 ++---
fs/f2fs/recovery.c | 6 +++---
fs/f2fs/segment.c | 4 ++--
fs/f2fs/segment.h | 2 +-
9 files changed, 25 insertions(+), 27 deletions(-)
diff --git a/fs/f2fs/checkpoint.c b/fs/f2fs/checkpoint.c
index 33d2da006789..e38221d96564 100644
--- a/fs/f2fs/checkpoint.c
+++ b/fs/f2fs/checkpoint.c
@@ -119,7 +119,7 @@ struct page *get_tmp_page(struct f2fs_sb_info *sbi, pgoff_t index)
return __get_meta_page(sbi, index, false);
}
-bool is_valid_blkaddr(struct f2fs_sb_info *sbi, block_t blkaddr, int type)
+bool is_valid_meta_blkaddr(struct f2fs_sb_info *sbi, block_t blkaddr, int type)
{
switch (type) {
case META_NAT:
@@ -175,7 +175,7 @@ int ra_meta_pages(struct f2fs_sb_info *sbi, block_t start, int nrpages,
blk_start_plug(&plug);
for (; nrpages-- > 0; blkno++) {
- if (!is_valid_blkaddr(sbi, blkno, type))
+ if (!is_valid_meta_blkaddr(sbi, blkno, type))
goto out;
switch (type) {
diff --git a/fs/f2fs/data.c b/fs/f2fs/data.c
index c368e651d3fd..feb4c224b305 100644
--- a/fs/f2fs/data.c
+++ b/fs/f2fs/data.c
@@ -428,7 +428,7 @@ int f2fs_submit_page_write(struct f2fs_io_info *fio)
spin_unlock(&io->io_lock);
}
- if (fio->old_blkaddr != NEW_ADDR)
+ if (is_valid_blkaddr(fio->old_blkaddr))
verify_block_addr(fio, fio->old_blkaddr);
verify_block_addr(fio, fio->new_blkaddr);
@@ -984,7 +984,7 @@ int f2fs_map_blocks(struct inode *inode, struct f2fs_map_blocks *map,
next_block:
blkaddr = datablock_addr(dn.inode, dn.node_page, dn.ofs_in_node);
- if (blkaddr == NEW_ADDR || blkaddr == NULL_ADDR) {
+ if (!is_valid_blkaddr(blkaddr)) {
if (create) {
if (unlikely(f2fs_cp_error(sbi))) {
err = -EIO;
@@ -1619,15 +1619,6 @@ static inline bool need_inplace_update(struct f2fs_io_info *fio)
return should_update_inplace(inode, fio);
}
-static inline bool valid_ipu_blkaddr(struct f2fs_io_info *fio)
-{
- if (fio->old_blkaddr == NEW_ADDR)
- return false;
- if (fio->old_blkaddr == NULL_ADDR)
- return false;
- return true;
-}
-
int do_write_data_page(struct f2fs_io_info *fio)
{
struct page *page = fio->page;
@@ -1642,7 +1633,7 @@ int do_write_data_page(struct f2fs_io_info *fio)
f2fs_lookup_extent_cache(inode, page->index, &ei)) {
fio->old_blkaddr = ei.blk + page->index - ei.fofs;
- if (valid_ipu_blkaddr(fio)) {
+ if (is_valid_blkaddr(fio->old_blkaddr)) {
ipu_force = true;
fio->need_lock = LOCK_DONE;
goto got_it;
@@ -1669,7 +1660,8 @@ int do_write_data_page(struct f2fs_io_info *fio)
* If current allocation needs SSR,
* it had better in-place writes for updated data.
*/
- if (ipu_force || (valid_ipu_blkaddr(fio) && need_inplace_update(fio))) {
+ if (ipu_force || (is_valid_blkaddr(fio->old_blkaddr) &&
+ need_inplace_update(fio))) {
err = encrypt_one_page(fio);
if (err)
goto out_writepage;
diff --git a/fs/f2fs/f2fs.h b/fs/f2fs/f2fs.h
index 76d8de0f21a7..49cd6c30843c 100644
--- a/fs/f2fs/f2fs.h
+++ b/fs/f2fs/f2fs.h
@@ -2658,6 +2658,13 @@ static inline void f2fs_update_iostat(struct f2fs_sb_info *sbi,
spin_unlock(&sbi->iostat_lock);
}
+static inline bool is_valid_blkaddr(block_t blkaddr)
+{
+ if (blkaddr == NEW_ADDR || blkaddr == NULL_ADDR)
+ return false;
+ return true;
+}
+
/*
* file.c
*/
@@ -2878,7 +2885,7 @@ void f2fs_stop_checkpoint(struct f2fs_sb_info *sbi, bool end_io);
struct page *grab_meta_page(struct f2fs_sb_info *sbi, pgoff_t index);
struct page *get_meta_page(struct f2fs_sb_info *sbi, pgoff_t index);
struct page *get_tmp_page(struct f2fs_sb_info *sbi, pgoff_t index);
-bool is_valid_blkaddr(struct f2fs_sb_info *sbi, block_t blkaddr, int type);
+bool is_valid_meta_blkaddr(struct f2fs_sb_info *sbi, block_t blkaddr, int type);
int ra_meta_pages(struct f2fs_sb_info *sbi, block_t start, int nrpages,
int type, bool sync);
void ra_meta_pages_cond(struct f2fs_sb_info *sbi, pgoff_t index);
diff --git a/fs/f2fs/file.c b/fs/f2fs/file.c
index da13ea3e190a..b569c7c5db6d 100644
--- a/fs/f2fs/file.c
+++ b/fs/f2fs/file.c
@@ -352,7 +352,7 @@ static bool __found_offset(block_t blkaddr, pgoff_t dirty, pgoff_t pgofs,
switch (whence) {
case SEEK_DATA:
if ((blkaddr == NEW_ADDR && dirty == pgofs) ||
- (blkaddr != NEW_ADDR && blkaddr != NULL_ADDR))
+ is_valid_blkaddr(blkaddr))
return true;
break;
case SEEK_HOLE:
diff --git a/fs/f2fs/inode.c b/fs/f2fs/inode.c
index 4b9dce9029ac..ffb7e8266db9 100644
--- a/fs/f2fs/inode.c
+++ b/fs/f2fs/inode.c
@@ -72,7 +72,7 @@ static bool __written_first_block(struct f2fs_inode *ri)
{
block_t addr = le32_to_cpu(ri->i_addr[offset_in_addr(ri)]);
- if (addr != NEW_ADDR && addr != NULL_ADDR)
+ if (is_valid_blkaddr(addr))
return true;
return false;
}
diff --git a/fs/f2fs/node.c b/fs/f2fs/node.c
index 62ce49984a9e..67b3e89975af 100644
--- a/fs/f2fs/node.c
+++ b/fs/f2fs/node.c
@@ -379,8 +379,7 @@ static void set_node_addr(struct f2fs_sb_info *sbi, struct node_info *ni,
new_blkaddr == NULL_ADDR);
f2fs_bug_on(sbi, nat_get_blkaddr(e) == NEW_ADDR &&
new_blkaddr == NEW_ADDR);
- f2fs_bug_on(sbi, nat_get_blkaddr(e) != NEW_ADDR &&
- nat_get_blkaddr(e) != NULL_ADDR &&
+ f2fs_bug_on(sbi, is_valid_blkaddr(nat_get_blkaddr(e)) &&
new_blkaddr == NEW_ADDR);
/* increment version no as node is removed */
@@ -391,7 +390,7 @@ static void set_node_addr(struct f2fs_sb_info *sbi, struct node_info *ni,
/* change address */
nat_set_blkaddr(e, new_blkaddr);
- if (new_blkaddr == NEW_ADDR || new_blkaddr == NULL_ADDR)
+ if (!is_valid_blkaddr(new_blkaddr))
set_nat_flag(e, IS_CHECKPOINTED, false);
__set_nat_cache_dirty(nm_i, e);
diff --git a/fs/f2fs/recovery.c b/fs/f2fs/recovery.c
index 709dd4daaf29..bb519ba2558e 100644
--- a/fs/f2fs/recovery.c
+++ b/fs/f2fs/recovery.c
@@ -252,7 +252,7 @@ static int find_fsync_dnodes(struct f2fs_sb_info *sbi, struct list_head *head,
while (1) {
struct fsync_inode_entry *entry;
- if (!is_valid_blkaddr(sbi, blkaddr, META_POR))
+ if (!is_valid_meta_blkaddr(sbi, blkaddr, META_POR))
return 0;
page = get_tmp_page(sbi, blkaddr);
@@ -506,7 +506,7 @@ static int do_recover_data(struct f2fs_sb_info *sbi, struct inode *inode,
}
/* dest is valid block, try to recover from src to dest */
- if (is_valid_blkaddr(sbi, dest, META_POR)) {
+ if (is_valid_meta_blkaddr(sbi, dest, META_POR)) {
if (src == NULL_ADDR) {
err = reserve_new_block(&dn);
@@ -567,7 +567,7 @@ static int recover_data(struct f2fs_sb_info *sbi, struct list_head *inode_list,
while (1) {
struct fsync_inode_entry *entry;
- if (!is_valid_blkaddr(sbi, blkaddr, META_POR))
+ if (!is_valid_meta_blkaddr(sbi, blkaddr, META_POR))
break;
ra_meta_pages_cond(sbi, blkaddr);
diff --git a/fs/f2fs/segment.c b/fs/f2fs/segment.c
index 5816ab471c41..ce60378cf93c 100644
--- a/fs/f2fs/segment.c
+++ b/fs/f2fs/segment.c
@@ -1954,7 +1954,7 @@ bool is_checkpointed_data(struct f2fs_sb_info *sbi, block_t blkaddr)
struct seg_entry *se;
bool is_cp = false;
- if (blkaddr == NEW_ADDR || blkaddr == NULL_ADDR)
+ if (!is_valid_blkaddr(blkaddr))
return true;
down_read(&sit_i->sentry_lock);
@@ -2948,7 +2948,7 @@ void f2fs_wait_on_block_writeback(struct f2fs_sb_info *sbi, block_t blkaddr)
{
struct page *cpage;
- if (blkaddr == NEW_ADDR || blkaddr == NULL_ADDR)
+ if (!is_valid_blkaddr(blkaddr))
return;
cpage = find_lock_page(META_MAPPING(sbi), blkaddr);
diff --git a/fs/f2fs/segment.h b/fs/f2fs/segment.h
index c385daabcb67..c574131ac7e1 100644
--- a/fs/f2fs/segment.h
+++ b/fs/f2fs/segment.h
@@ -85,7 +85,7 @@
(GET_SEGOFF_FROM_SEG0(sbi, blk_addr) & ((sbi)->blocks_per_seg - 1))
#define GET_SEGNO(sbi, blk_addr) \
- ((((blk_addr) == NULL_ADDR) || ((blk_addr) == NEW_ADDR)) ? \
+ ((!is_valid_blkaddr(blk_addr)) ? \
NULL_SEGNO : GET_L2R_SEGNO(FREE_I(sbi), \
GET_SEGNO_FROM_SEG0(sbi, blk_addr)))
#define BLKS_PER_SEC(sbi) \
--
2.16.2.17.g38e79b1fd
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