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| author | Jaegeuk Kim <jaegeuk@kernel.org> | 2014-10-19 06:41:38 (GMT) |
|---|---|---|
| committer | Jaegeuk Kim <jaegeuk@kernel.org> | 2014-11-04 00:07:35 (GMT) |
| commit | f1e33a041e39535571cd19f4799c3673868f2118 (patch) | |
| tree | d4e1a328a1030ed48511ade5102fc1457a658390 /fs | |
| parent | 062a3e7ba7eebcd7d44e49e9510135f901f93f48 (diff) | |
| download | linux-f1e33a041e39535571cd19f4799c3673868f2118.tar.xz | |
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>
Diffstat (limited to 'fs')
| -rw-r--r-- | fs/f2fs/inline.c | 17 |
1 files changed, 8 insertions, 9 deletions
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 @@ 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); |