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Message-id: <006401d04128$7349ad50$59dd07f0$@samsung.com>
Date: Thu, 05 Feb 2015 17:44:29 +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] f2fs: merge {invalidate,release}page for meta/node/data pages
This patch merges ->{invalidate,release}page function for meta/node/data pages.
After this, duplication of codes could be removed.
Signed-off-by: Chao Yu <chao2.yu@...sung.com>
---
fs/f2fs/checkpoint.c | 24 ++----------------------
fs/f2fs/data.c | 24 ++++++++++++++++--------
fs/f2fs/f2fs.h | 2 ++
fs/f2fs/node.c | 23 ++---------------------
4 files changed, 22 insertions(+), 51 deletions(-)
diff --git a/fs/f2fs/checkpoint.c b/fs/f2fs/checkpoint.c
index 470fa58..31a715b 100644
--- a/fs/f2fs/checkpoint.c
+++ b/fs/f2fs/checkpoint.c
@@ -309,32 +309,12 @@ static int f2fs_set_meta_page_dirty(struct page *page)
return 0;
}
-static void f2fs_invalidate_meta_page(struct page *page, unsigned int offset,
- unsigned int length)
-{
- struct inode *inode = page->mapping->host;
-
- if (PageDirty(page))
- dec_page_count(F2FS_I_SB(inode), F2FS_DIRTY_META);
- ClearPagePrivate(page);
-}
-
-static int f2fs_release_meta_page(struct page *page, gfp_t wait)
-{
- /* If this is dirty page, keep PagePrivate */
- if (PageDirty(page))
- return 0;
-
- ClearPagePrivate(page);
- return 1;
-}
-
const struct address_space_operations f2fs_meta_aops = {
.writepage = f2fs_write_meta_page,
.writepages = f2fs_write_meta_pages,
.set_page_dirty = f2fs_set_meta_page_dirty,
- .invalidatepage = f2fs_invalidate_meta_page,
- .releasepage = f2fs_release_meta_page,
+ .invalidatepage = f2fs_invalidate_page,
+ .releasepage = f2fs_release_page,
};
static void __add_ino_entry(struct f2fs_sb_info *sbi, nid_t ino, int type)
diff --git a/fs/f2fs/data.c b/fs/f2fs/data.c
index 27dc3fd..d166557 100644
--- a/fs/f2fs/data.c
+++ b/fs/f2fs/data.c
@@ -1115,20 +1115,28 @@ static ssize_t f2fs_direct_IO(int rw, struct kiocb *iocb,
return err;
}
-static void f2fs_invalidate_data_page(struct page *page, unsigned int offset,
- unsigned int length)
+void f2fs_invalidate_page(struct page *page, unsigned int offset,
+ unsigned int length)
{
struct inode *inode = page->mapping->host;
+ struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
- if (offset % PAGE_CACHE_SIZE || length != PAGE_CACHE_SIZE)
+ if (inode->i_ino >= F2FS_ROOT_INO(sbi) &&
+ (offset % PAGE_CACHE_SIZE || length != PAGE_CACHE_SIZE))
return;
- if (PageDirty(page))
- inode_dec_dirty_pages(inode);
+ if (PageDirty(page)) {
+ if (inode->i_ino == F2FS_META_INO(sbi))
+ dec_page_count(sbi, F2FS_DIRTY_META);
+ else if (inode->i_ino == F2FS_NODE_INO(sbi))
+ dec_page_count(sbi, F2FS_DIRTY_NODES);
+ else
+ inode_dec_dirty_pages(inode);
+ }
ClearPagePrivate(page);
}
-static int f2fs_release_data_page(struct page *page, gfp_t wait)
+int f2fs_release_page(struct page *page, gfp_t wait)
{
/* If this is dirty page, keep PagePrivate */
if (PageDirty(page))
@@ -1183,8 +1191,8 @@ const struct address_space_operations f2fs_dblock_aops = {
.write_begin = f2fs_write_begin,
.write_end = f2fs_write_end,
.set_page_dirty = f2fs_set_data_page_dirty,
- .invalidatepage = f2fs_invalidate_data_page,
- .releasepage = f2fs_release_data_page,
+ .invalidatepage = f2fs_invalidate_page,
+ .releasepage = f2fs_release_page,
.direct_IO = f2fs_direct_IO,
.bmap = f2fs_bmap,
};
diff --git a/fs/f2fs/f2fs.h b/fs/f2fs/f2fs.h
index 47a8857..03929dc 100644
--- a/fs/f2fs/f2fs.h
+++ b/fs/f2fs/f2fs.h
@@ -1522,6 +1522,8 @@ struct page *get_lock_data_page(struct inode *, pgoff_t);
struct page *get_new_data_page(struct inode *, struct page *, pgoff_t, bool);
int do_write_data_page(struct page *, struct f2fs_io_info *);
int f2fs_fiemap(struct inode *inode, struct fiemap_extent_info *, u64, u64);
+void f2fs_invalidate_page(struct page *, unsigned int, unsigned int);
+int f2fs_release_page(struct page *, gfp_t);
/*
* gc.c
diff --git a/fs/f2fs/node.c b/fs/f2fs/node.c
index 9feda38..ea22c32 100644
--- a/fs/f2fs/node.c
+++ b/fs/f2fs/node.c
@@ -1370,25 +1370,6 @@ static int f2fs_set_node_page_dirty(struct page *page)
return 0;
}
-static void f2fs_invalidate_node_page(struct page *page, unsigned int offset,
- unsigned int length)
-{
- struct inode *inode = page->mapping->host;
- if (PageDirty(page))
- dec_page_count(F2FS_I_SB(inode), F2FS_DIRTY_NODES);
- ClearPagePrivate(page);
-}
-
-static int f2fs_release_node_page(struct page *page, gfp_t wait)
-{
- /* If this is dirty page, keep PagePrivate */
- if (PageDirty(page))
- return 0;
-
- ClearPagePrivate(page);
- return 1;
-}
-
/*
* Structure of the f2fs node operations
*/
@@ -1396,8 +1377,8 @@ const struct address_space_operations f2fs_node_aops = {
.writepage = f2fs_write_node_page,
.writepages = f2fs_write_node_pages,
.set_page_dirty = f2fs_set_node_page_dirty,
- .invalidatepage = f2fs_invalidate_node_page,
- .releasepage = f2fs_release_node_page,
+ .invalidatepage = f2fs_invalidate_page,
+ .releasepage = f2fs_release_page,
};
static struct free_nid *__lookup_free_nid_list(struct f2fs_nm_info *nm_i,
--
2.2.1
--
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