diff mbox

[v7,05/61] Export __set_page_dirty

Message ID 20180219194556.6575-6-willy@infradead.org (mailing list archive)
State New, archived
Headers show

Commit Message

Matthew Wilcox Feb. 19, 2018, 7:45 p.m. UTC 
From: Matthew Wilcox <mawilcox@microsoft.com>

XFS currently contains a copy-and-paste of __set_page_dirty().  Export
it from buffer.c instead.

Signed-off-by: Matthew Wilcox <mawilcox@microsoft.com>
---
 fs/buffer.c        |  3 ++-
 fs/xfs/xfs_aops.c  | 15 ++-------------
 include/linux/mm.h |  1 +
 3 files changed, 5 insertions(+), 14 deletions(-)

Comments

Jeff Layton March 3, 2018, 1:56 p.m. UTC | #1 
On Mon, 2018-02-19 at 11:45 -0800, Matthew Wilcox wrote:
> From: Matthew Wilcox <mawilcox@microsoft.com>
> 
> XFS currently contains a copy-and-paste of __set_page_dirty().  Export
> it from buffer.c instead.
> 
> Signed-off-by: Matthew Wilcox <mawilcox@microsoft.com>
> ---
>  fs/buffer.c        |  3 ++-
>  fs/xfs/xfs_aops.c  | 15 ++-------------
>  include/linux/mm.h |  1 +
>  3 files changed, 5 insertions(+), 14 deletions(-)
> 
> diff --git a/fs/buffer.c b/fs/buffer.c
> index 9a73924db22f..0b487cdb7124 100644
> --- a/fs/buffer.c
> +++ b/fs/buffer.c
> @@ -594,7 +594,7 @@ EXPORT_SYMBOL(mark_buffer_dirty_inode);
>   *
>   * The caller must hold lock_page_memcg().
>   */
> -static void __set_page_dirty(struct page *page, struct address_space *mapping,
> +void __set_page_dirty(struct page *page, struct address_space *mapping,
>  			     int warn)
>  {
>  	unsigned long flags;
> @@ -608,6 +608,7 @@ static void __set_page_dirty(struct page *page, struct address_space *mapping,
>  	}
>  	spin_unlock_irqrestore(&mapping->tree_lock, flags);
>  }
> +EXPORT_SYMBOL_GPL(__set_page_dirty);
>  
>  /*
>   * Add a page to the dirty page list.
> diff --git a/fs/xfs/xfs_aops.c b/fs/xfs/xfs_aops.c
> index 9c6a830da0ee..31f2c4895a46 100644
> --- a/fs/xfs/xfs_aops.c
> +++ b/fs/xfs/xfs_aops.c
> @@ -1472,19 +1472,8 @@ xfs_vm_set_page_dirty(
>  	newly_dirty = !TestSetPageDirty(page);
>  	spin_unlock(&mapping->private_lock);
>  
> -	if (newly_dirty) {
> -		/* sigh - __set_page_dirty() is static, so copy it here, too */
> -		unsigned long flags;
> -
> -		spin_lock_irqsave(&mapping->tree_lock, flags);
> -		if (page->mapping) {	/* Race with truncate? */
> -			WARN_ON_ONCE(!PageUptodate(page));
> -			account_page_dirtied(page, mapping);
> -			radix_tree_tag_set(&mapping->page_tree,
> -					page_index(page), PAGECACHE_TAG_DIRTY);
> -		}
> -		spin_unlock_irqrestore(&mapping->tree_lock, flags);
> -	}
> +	if (newly_dirty)
> +		__set_page_dirty(page, mapping, 1);
>  	unlock_page_memcg(page);
>  	if (newly_dirty)
>  		__mark_inode_dirty(mapping->host, I_DIRTY_PAGES);
> diff --git a/include/linux/mm.h b/include/linux/mm.h
> index ad06d42adb1a..47b0fb0a6e41 100644
> --- a/include/linux/mm.h
> +++ b/include/linux/mm.h
> @@ -1454,6 +1454,7 @@ extern int try_to_release_page(struct page * page, gfp_t gfp_mask);
>  extern void do_invalidatepage(struct page *page, unsigned int offset,
>  			      unsigned int length);
>  
> +void __set_page_dirty(struct page *, struct address_space *, int warn);
>  int __set_page_dirty_nobuffers(struct page *page);
>  int __set_page_dirty_no_writeback(struct page *page);
>  int redirty_page_for_writepage(struct writeback_control *wbc,

Acked-by: Jeff Layton <jlayton@kernel.org>
diff mbox

Patch

diff --git a/fs/buffer.c b/fs/buffer.c
index 9a73924db22f..0b487cdb7124 100644
--- a/fs/buffer.c
+++ b/fs/buffer.c
@@ -594,7 +594,7 @@  EXPORT_SYMBOL(mark_buffer_dirty_inode);
  *
  * The caller must hold lock_page_memcg().
  */
-static void __set_page_dirty(struct page *page, struct address_space *mapping,
+void __set_page_dirty(struct page *page, struct address_space *mapping,
 			     int warn)
 {
 	unsigned long flags;
@@ -608,6 +608,7 @@  static void __set_page_dirty(struct page *page, struct address_space *mapping,
 	}
 	spin_unlock_irqrestore(&mapping->tree_lock, flags);
 }
+EXPORT_SYMBOL_GPL(__set_page_dirty);
 
 /*
  * Add a page to the dirty page list.
diff --git a/fs/xfs/xfs_aops.c b/fs/xfs/xfs_aops.c
index 9c6a830da0ee..31f2c4895a46 100644
--- a/fs/xfs/xfs_aops.c
+++ b/fs/xfs/xfs_aops.c
@@ -1472,19 +1472,8 @@  xfs_vm_set_page_dirty(
 	newly_dirty = !TestSetPageDirty(page);
 	spin_unlock(&mapping->private_lock);
 
-	if (newly_dirty) {
-		/* sigh - __set_page_dirty() is static, so copy it here, too */
-		unsigned long flags;
-
-		spin_lock_irqsave(&mapping->tree_lock, flags);
-		if (page->mapping) {	/* Race with truncate? */
-			WARN_ON_ONCE(!PageUptodate(page));
-			account_page_dirtied(page, mapping);
-			radix_tree_tag_set(&mapping->page_tree,
-					page_index(page), PAGECACHE_TAG_DIRTY);
-		}
-		spin_unlock_irqrestore(&mapping->tree_lock, flags);
-	}
+	if (newly_dirty)
+		__set_page_dirty(page, mapping, 1);
 	unlock_page_memcg(page);
 	if (newly_dirty)
 		__mark_inode_dirty(mapping->host, I_DIRTY_PAGES);
diff --git a/include/linux/mm.h b/include/linux/mm.h
index ad06d42adb1a..47b0fb0a6e41 100644
--- a/include/linux/mm.h
+++ b/include/linux/mm.h
@@ -1454,6 +1454,7 @@  extern int try_to_release_page(struct page * page, gfp_t gfp_mask);
 extern void do_invalidatepage(struct page *page, unsigned int offset,
 			      unsigned int length);
 
+void __set_page_dirty(struct page *, struct address_space *, int warn);
 int __set_page_dirty_nobuffers(struct page *page);
 int __set_page_dirty_no_writeback(struct page *page);
 int redirty_page_for_writepage(struct writeback_control *wbc,