Commit f1e33a04 authored by Jaegeuk Kim's avatar Jaegeuk Kim
Browse files

f2fs: use kmap_atomic instead of kmap 



For better performance, we need to use kmap_atomic instead of kmap.

Signed-off-by: default avatarJaegeuk Kim <jaegeuk@kernel.org>
parent 062a3e7b

fs/f2fs/inline.c

+8 −9
Original line number Diff line number Diff line
@@ -55,11 +55,10 @@ int f2fs_read_inline_data(struct inode *inode, struct page *page) 


	/* Copy the whole inline data block */

	src_addr = inline_data_addr(ipage);

	dst_addr = kmap(page);

	dst_addr = kmap_atomic(page);

	memcpy(dst_addr, src_addr, MAX_INLINE_DATA);

	kunmap(page);

	kunmap_atomic(dst_addr);

	f2fs_put_page(ipage, 1);



out:

	SetPageUptodate(page);

	unlock_page(page);
@@ -105,9 +104,9 @@ static int __f2fs_convert_inline_data(struct inode *inode, struct page *page) 


	/* Copy the whole inline data block */

	src_addr = inline_data_addr(ipage);

	dst_addr = kmap(page);

	dst_addr = kmap_atomic(page);

	memcpy(dst_addr, src_addr, MAX_INLINE_DATA);

	kunmap(page);

	kunmap_atomic(dst_addr);

	SetPageUptodate(page);



	/* write data page to try to make data consistent */
@@ -177,10 +176,10 @@ int f2fs_write_inline_data(struct inode *inode, 
	f2fs_wait_on_page_writeback(ipage, NODE);

	zero_user_segment(ipage, INLINE_DATA_OFFSET,

				 INLINE_DATA_OFFSET + MAX_INLINE_DATA);

	src_addr = kmap(page);

	src_addr = kmap_atomic(page);

	dst_addr = inline_data_addr(ipage);

	memcpy(dst_addr, src_addr, size);

	kunmap(page);

	kunmap_atomic(src_addr);



	set_inode_flag(F2FS_I(inode), FI_APPEND_WRITE);

	sync_inode_page(&dn);
@@ -351,7 +350,7 @@ int f2fs_convert_inline_dir(struct inode *dir, struct page *ipage, 
	f2fs_wait_on_page_writeback(page, DATA);

	zero_user_segment(page, 0, PAGE_CACHE_SIZE);



	dentry_blk = kmap(page);

	dentry_blk = kmap_atomic(page);



	/* copy data from inline dentry block to new dentry block */

	memcpy(dentry_blk->dentry_bitmap, inline_dentry->dentry_bitmap,
@@ -361,7 +360,7 @@ int f2fs_convert_inline_dir(struct inode *dir, struct page *ipage, 
	memcpy(dentry_blk->filename, inline_dentry->filename,

					NR_INLINE_DENTRY * F2FS_SLOT_LEN);



	kunmap(page);

	kunmap_atomic(dentry_blk);

	SetPageUptodate(page);

	set_page_dirty(page);