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author | Miao Xie <miaox@cn.fujitsu.com> | 2013-12-10 11:25:03 (GMT) |
---|---|---|
committer | Chris Mason <clm@fb.com> | 2014-01-28 21:19:41 (GMT) |
commit | b37392ea86761e97d46b567667ff158e8bb67b72 (patch) | |
tree | 0c57373c4c9dea9cf799d762cf13724982e0ecc1 /fs/btrfs/file.c | |
parent | cc37bb04201217b7acb11213e16cb5530c30da8f (diff) | |
download | linux-b37392ea86761e97d46b567667ff158e8bb67b72.tar.xz |
Btrfs: cleanup unnecessary parameter and variant of prepare_pages()
- the caller has gotten the inode object, needn't pass the file object.
And if so, we needn't define a inode pointer variant.
- the position should be aligned by the page size not sector size, so
we also needn't pass the root object into prepare_pages().
Signed-off-by: Miao Xie <miaox@cn.fujitsu.com>
Signed-off-by: Josef Bacik <jbacik@fb.com>
Signed-off-by: Chris Mason <clm@fb.com>
Diffstat (limited to 'fs/btrfs/file.c')
-rw-r--r-- | fs/btrfs/file.c | 14 |
1 files changed, 6 insertions, 8 deletions
diff --git a/fs/btrfs/file.c b/fs/btrfs/file.c index c77da44..5591c67 100644 --- a/fs/btrfs/file.c +++ b/fs/btrfs/file.c @@ -1239,22 +1239,20 @@ static int prepare_uptodate_page(struct page *page, u64 pos, * waits for data=ordered extents to finish before allowing the pages to be * modified. */ -static noinline int prepare_pages(struct btrfs_root *root, struct file *file, - struct page **pages, size_t num_pages, - loff_t pos, unsigned long first_index, - size_t write_bytes, bool force_uptodate) +static noinline int prepare_pages(struct inode *inode, struct page **pages, + size_t num_pages, loff_t pos, + size_t write_bytes, bool force_uptodate) { struct extent_state *cached_state = NULL; int i; unsigned long index = pos >> PAGE_CACHE_SHIFT; - struct inode *inode = file_inode(file); gfp_t mask = btrfs_alloc_write_mask(inode->i_mapping); int err = 0; int faili = 0; u64 start_pos; u64 last_pos; - start_pos = pos & ~((u64)root->sectorsize - 1); + start_pos = pos & ~((u64)PAGE_CACHE_SIZE - 1); last_pos = ((u64)index + num_pages) << PAGE_CACHE_SHIFT; again: @@ -1462,8 +1460,8 @@ static noinline ssize_t __btrfs_buffered_write(struct file *file, * pages we want, so we don't really need to worry about the * contents of pages from loop to loop */ - ret = prepare_pages(root, file, pages, num_pages, - pos, first_index, write_bytes, + ret = prepare_pages(inode, pages, num_pages, + pos, write_bytes, force_page_uptodate); if (ret) break; |