[PATCH v2 09/18] reiserfs: use ->invalidatepage() length argument
From: Lukas Czerner <hidden>
Date: 2013-02-05 09:12:02
Also in:
linux-fsdevel, linux-mm, lkml
Subsystem:
filesystems (vfs and infrastructure), the rest · Maintainers:
Alexander Viro, Christian Brauner, Linus Torvalds
->invalidatepage() aop now accepts range to invalidate so we can make use of it in reiserfs_invalidatepage() Signed-off-by: Lukas Czerner <redacted> Cc: reiserfs-devel@vger.kernel.org --- fs/reiserfs/inode.c | 9 +++++++-- 1 files changed, 7 insertions(+), 2 deletions(-)
diff --git a/fs/reiserfs/inode.c b/fs/reiserfs/inode.c
index 5ca4fb4..cf949b9 100644
--- a/fs/reiserfs/inode.c
+++ b/fs/reiserfs/inode.c@@ -2975,11 +2975,13 @@ static void reiserfs_invalidatepage(struct page *page, unsigned int offset, struct buffer_head *head, *bh, *next; struct inode *inode = page->mapping->host; unsigned int curr_off = 0; + unsigned int stop = offset + length; + int partial_page = (offset || length < PAGE_CACHE_SIZE); int ret = 1; BUG_ON(!PageLocked(page)); - if (offset == 0) + if (!partial_page) ClearPageChecked(page); if (!page_has_buffers(page))
@@ -2991,6 +2993,9 @@ static void reiserfs_invalidatepage(struct page *page, unsigned int offset, unsigned int next_off = curr_off + bh->b_size; next = bh->b_this_page; + if (next_off > stop) + goto out; + /* * is this block fully invalidated? */
@@ -3009,7 +3014,7 @@ static void reiserfs_invalidatepage(struct page *page, unsigned int offset, * The get_block cached value has been unconditionally invalidated, * so real IO is not possible anymore. */ - if (!offset && ret) { + if (!partial_page && ret) { ret = try_to_release_page(page, 0); /* maybe should BUG_ON(!ret); - neilb */ }
--
1.7.7.6
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