>From 61057c6bb3a3d14cf2bea6ca20dc6d367e1d852e Mon Sep 17 00:00:00 2001
From: Russell Cattelan <[email protected]>
Date: Thu, 9 Nov 2006 11:42:33 -0500
Subject: [PATCH] [GFS2] Remove unused zero_readpage from stuffed_readpage
Stuffed files only consist of a maximum of
(gfs2 block size - sizeof(struct gfs2_dinode)) bytes. Since the
gfs2 block size is always less than page size, we will never see
a call to stuffed_readpage for anything other than the first page
in the file.
Signed-off-by: Russell Cattelan <[email protected]>
Signed-off-by: Steven Whitehouse <[email protected]>
---
fs/gfs2/ops_address.c | 20 ++++----------------
1 files changed, 4 insertions(+), 16 deletions(-)
diff --git a/fs/gfs2/ops_address.c b/fs/gfs2/ops_address.c
index 3822189..2f7ef98 100644
--- a/fs/gfs2/ops_address.c
+++ b/fs/gfs2/ops_address.c
@@ -156,19 +156,6 @@ out_ignore:
return 0;
}
-static int zero_readpage(struct page *page)
-{
- void *kaddr;
-
- kaddr = kmap_atomic(page, KM_USER0);
- memset(kaddr, 0, PAGE_CACHE_SIZE);
- kunmap_atomic(kaddr, KM_USER0);
-
- SetPageUptodate(page);
-
- return 0;
-}
-
/**
* stuffed_readpage - Fill in a Linux page with stuffed file data
* @ip: the inode
@@ -183,9 +170,7 @@ static int stuffed_readpage(struct gfs2_
void *kaddr;
int error;
- /* Only the first page of a stuffed file might contain data */
- if (unlikely(page->index))
- return zero_readpage(page);
+ BUG_ON(page->index);
error = gfs2_meta_inode_buffer(ip, &dibh);
if (error)
@@ -737,6 +722,9 @@ int gfs2_releasepage(struct page *page,
if (!atomic_read(&aspace->i_writecount))
return 0;
+ if (!(gfp_mask & __GFP_WAIT))
+ return 0;
+
if (time_after_eq(jiffies, t)) {
stuck_releasepage(bh);
/* should we withdraw here? */
--
1.4.1
-
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