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f2fs: avoid grab_cache_page_write_begin for data pages 

We don't need to wait on page writeback for these cases.

Signed-off-by: Chao Yu <chao2.yu@samsung.com>
Signed-off-by: Jaegeuk Kim <jaegeuk.kim@samsung.com>
This commit is contained in:
Jaegeuk Kim 2014-04-29 17:35:10 +09:00
parent 54b591dfda
commit 9ac1349ad7
2 changed files with 4 additions and 3 deletions
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4
fs/f2fs/data.c
View File

@ -417,7 +417,7 @@ struct page *find_data_page(struct inode *inode, pgoff_t index, bool sync)
if (unlikely(dn.data_blkaddr == NEW_ADDR))
return ERR_PTR(-EINVAL);
page = grab_cache_page_write_begin(mapping, index, AOP_FLAG_NOFS);
page = grab_cache_page(mapping, index);
if (!page)
return ERR_PTR(-ENOMEM);
@ -455,7 +455,7 @@ struct page *get_lock_data_page(struct inode *inode, pgoff_t index)
int err;
repeat:
page = grab_cache_page_write_begin(mapping, index, AOP_FLAG_NOFS);
page = grab_cache_page(mapping, index);
if (!page)
return ERR_PTR(-ENOMEM);

3
fs/f2fs/inline.c
View File

@ -95,6 +95,7 @@ static int __f2fs_convert_inline_data(struct inode *inode, struct page *page)
if (err)
goto out;
f2fs_wait_on_page_writeback(page, DATA);
zero_user_segment(page, MAX_INLINE_DATA, PAGE_CACHE_SIZE);
/* Copy the whole inline data block */
@ -133,7 +134,7 @@ int f2fs_convert_inline_data(struct inode *inode, pgoff_t to_size)
else if (to_size <= MAX_INLINE_DATA)
return 0;
page = grab_cache_page_write_begin(inode->i_mapping, 0, AOP_FLAG_NOFS);
page = grab_cache_page(inode->i_mapping, 0);
if (!page)
return -ENOMEM;