From: Lukas Czerner <lczerner@redhat.com>
To: linux-mm@kvack.org
Cc: linux-kernel@vger.kernel.org, linux-fsdevel@vger.kernel.org,
linux-ext4@vger.kernel.org, xfs@oss.sgi.com,
Lukas Czerner <lczerner@redhat.com>
Subject: [PATCH 09/18] reiserfs: use ->invalidatepage() length argument
Date: Fri, 1 Feb 2013 11:43:35 +0100 [thread overview]
Message-ID: <1359715424-32318-10-git-send-email-lczerner@redhat.com> (raw)
In-Reply-To: <1359715424-32318-1-git-send-email-lczerner@redhat.com>
->invalidatepage() aop now accepts range to invalidate so we can make
use of it in reiserfs_invalidatepage()
Signed-off-by: Lukas Czerner <lczerner@redhat.com>
---
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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next prev parent reply other threads:[~2013-02-01 10:43 UTC|newest]
Thread overview: 23+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-02-01 10:43 [RFC] mm: change invalidatepage prototype to accept length Lukas Czerner
2013-02-01 10:43 ` [PATCH 01/18] " Lukas Czerner
2013-02-01 10:43 ` [PATCH 02/18] jbd2: change jbd2_journal_invalidatepage " Lukas Czerner
2013-02-01 10:43 ` [PATCH 03/18] ext4: use ->invalidatepage() length argument Lukas Czerner
2013-02-01 10:43 ` [PATCH 04/18] jbd: change journal_invalidatepage() to accept length Lukas Czerner
2013-02-01 10:43 ` [PATCH 05/18] xfs: use ->invalidatepage() length argument Lukas Czerner
2013-02-01 10:43 ` [PATCH 06/18] ocfs2: " Lukas Czerner
2013-02-01 10:43 ` [PATCH 07/18] ceph: " Lukas Czerner
2013-02-01 10:43 ` [PATCH 08/18] gfs2: " Lukas Czerner
2013-02-01 10:43 ` Lukas Czerner [this message]
2013-02-01 10:43 ` [PATCH 10/18] mm: teach truncate_inode_pages_range() to handle non page aligned ranges Lukas Czerner
2013-02-01 23:15 ` Andrew Morton
2013-02-04 14:51 ` Lukáš Czerner
2013-02-04 20:51 ` Andrew Morton
2013-02-05 7:14 ` Lukáš Czerner
2013-02-01 10:43 ` [PATCH 11/18] Revert "ext4: remove no longer used functions in inode.c" Lukas Czerner
2013-02-01 10:43 ` [PATCH 12/18] Revert "ext4: fix fsx truncate failure" Lukas Czerner
2013-02-01 10:43 ` [PATCH 13/18] ext4: use ext4_zero_partial_blocks in punch_hole Lukas Czerner
2013-02-01 10:43 ` [PATCH 14/18] ext4: remove unused discard_partial_page_buffers Lukas Czerner
2013-02-01 10:43 ` [PATCH 15/18] ext4: remove unused code from ext4_remove_blocks() Lukas Czerner
2013-02-01 10:43 ` [PATCH 16/18] ext4: update ext4_ext_remove_space trace point Lukas Czerner
2013-02-01 10:43 ` [PATCH 17/18] ext4: make punch hole code path work with bigalloc Lukas Czerner
2013-02-01 10:43 ` [PATCH 18/18] ext4: Allow punch hole with bigalloc enabled Lukas Czerner
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