f2fs: use kmap_atomic instead of kmap
For better performance, we need to use kmap_atomic instead of kmap.
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
diff --git a/fs/f2fs/inline.c b/fs/f2fs/inline.c
index a309845..024546b 100644
--- a/fs/f2fs/inline.c
+++ b/fs/f2fs/inline.c
@@ -55,11 +55,10 @@
/* 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 @@
/* 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 @@
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 @@
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 @@
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);