summaryrefslogtreecommitdiffstats
path: root/fs/gfs2/ops_address.c
diff options
context:
space:
mode:
Diffstat (limited to 'fs/gfs2/ops_address.c')
-rw-r--r--fs/gfs2/ops_address.c44
1 files changed, 22 insertions, 22 deletions
diff --git a/fs/gfs2/ops_address.c b/fs/gfs2/ops_address.c
index ac772b6d9dbb..90a04a6e3789 100644
--- a/fs/gfs2/ops_address.c
+++ b/fs/gfs2/ops_address.c
@@ -1,6 +1,6 @@
/*
* Copyright (C) Sistina Software, Inc. 1997-2003 All rights reserved.
- * Copyright (C) 2004-2007 Red Hat, Inc. All rights reserved.
+ * Copyright (C) 2004-2008 Red Hat, Inc. All rights reserved.
*
* This copyrighted material is made available to anyone wishing to use,
* modify, copy, or redistribute it subject to the terms and conditions
@@ -21,7 +21,6 @@
#include <linux/gfs2_ondisk.h>
#include <linux/lm_interface.h>
#include <linux/backing-dev.h>
-#include <linux/pagevec.h>
#include "gfs2.h"
#include "incore.h"
@@ -104,11 +103,9 @@ static int gfs2_writepage_common(struct page *page,
loff_t i_size = i_size_read(inode);
pgoff_t end_index = i_size >> PAGE_CACHE_SHIFT;
unsigned offset;
- int ret = -EIO;
if (gfs2_assert_withdraw(sdp, gfs2_glock_is_held_excl(ip->i_gl)))
goto out;
- ret = 0;
if (current->journal_info)
goto redirty;
/* Is the page fully outside i_size? (truncate in progress) */
@@ -280,7 +277,7 @@ static int gfs2_write_jdata_pagevec(struct address_space *mapping,
int i;
int ret;
- ret = gfs2_trans_begin(sdp, nrblocks, 0);
+ ret = gfs2_trans_begin(sdp, nrblocks, nrblocks);
if (ret < 0)
return ret;
@@ -510,23 +507,26 @@ static int __gfs2_readpage(void *file, struct page *page)
static int gfs2_readpage(struct file *file, struct page *page)
{
struct gfs2_inode *ip = GFS2_I(page->mapping->host);
- struct gfs2_holder gh;
+ struct gfs2_holder *gh;
int error;
- gfs2_holder_init(ip->i_gl, LM_ST_SHARED, GL_ATIME|LM_FLAG_TRY_1CB, &gh);
- error = gfs2_glock_nq_atime(&gh);
- if (unlikely(error)) {
+ gh = gfs2_glock_is_locked_by_me(ip->i_gl);
+ if (!gh) {
+ gh = kmalloc(sizeof(struct gfs2_holder), GFP_NOFS);
+ if (!gh)
+ return -ENOBUFS;
+ gfs2_holder_init(ip->i_gl, LM_ST_SHARED, GL_ATIME, gh);
unlock_page(page);
- goto out;
+ error = gfs2_glock_nq_atime(gh);
+ if (likely(error != 0))
+ goto out;
+ return AOP_TRUNCATED_PAGE;
}
error = __gfs2_readpage(file, page);
- gfs2_glock_dq(&gh);
+ gfs2_glock_dq(gh);
out:
- gfs2_holder_uninit(&gh);
- if (error == GLR_TRYFAILED) {
- yield();
- return AOP_TRUNCATED_PAGE;
- }
+ gfs2_holder_uninit(gh);
+ kfree(gh);
return error;
}
@@ -648,15 +648,15 @@ static int gfs2_write_begin(struct file *file, struct address_space *mapping,
if (alloc_required) {
al = gfs2_alloc_get(ip);
+ if (!al) {
+ error = -ENOMEM;
+ goto out_unlock;
+ }
- error = gfs2_quota_lock(ip, NO_QUOTA_CHANGE, NO_QUOTA_CHANGE);
+ error = gfs2_quota_lock_check(ip);
if (error)
goto out_alloc_put;
- error = gfs2_quota_check(ip, ip->i_inode.i_uid, ip->i_inode.i_gid);
- if (error)
- goto out_qunlock;
-
al->al_requested = data_blocks + ind_blocks;
error = gfs2_inplace_reserve(ip);
if (error)
@@ -828,7 +828,7 @@ static int gfs2_write_end(struct file *file, struct address_space *mapping,
unsigned int to = from + len;
int ret;
- BUG_ON(gfs2_glock_is_locked_by_me(ip->i_gl) == 0);
+ BUG_ON(gfs2_glock_is_locked_by_me(ip->i_gl) == NULL);
ret = gfs2_meta_inode_buffer(ip, &dibh);
if (unlikely(ret)) {
OpenPOWER on IntegriCloud