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[GFS2] Remove unused zero_readpage from stuffed_readpage

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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 <cattelan@redhat.com>
Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
This commit is contained in:
Russell Cattelan 2006-11-09 11:42:33 -05:00 committed by Steven Whitehouse
parent 7020933156
commit 61057c6bb3
1 changed files with 4 additions and 16 deletions
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20
fs/gfs2/ops_address.c
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@ -156,19 +156,6 @@ static int gfs2_writepage(struct page *page, struct writeback_control *wbc)
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_inode *ip, struct page *page)
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, gfp_t gfp_mask)
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? */