Changes page->mapping handling in reiser4
(sorry, changes for /reiserfs is also included.)
Todo:
Fix this warning caused by this patch(set). does anyone have an adivce ?
fs/reiser4/page_cache.c: In function ‘reiser4_tree_by_page’:
fs/reiser4/page_cache.c:315: warning: passing argument 1 of ‘page_inode’ discards qualifiers from pointer target type
Signed-off-by: KAMEZAWA Hiroyuki <[email protected]>
---
fs/reiser4/as_ops.c | 34 ++++++++++++++++---------------
fs/reiser4/entd.c | 6 ++---
fs/reiser4/jnode.c | 18 +++++++++-------
fs/reiser4/page_cache.c | 10 ++++-----
fs/reiser4/plugin/cluster.h | 14 ++++++------
fs/reiser4/plugin/file/cryptcompress.c | 15 +++++++------
fs/reiser4/plugin/file/file.c | 22 ++++++++++----------
fs/reiser4/plugin/file_ops.c | 8 +++----
fs/reiser4/plugin/item/ctail.c | 16 +++++++-------
fs/reiser4/plugin/item/extent_file_ops.c | 6 ++---
fs/reiser4/plugin/item/tail.c | 6 ++---
fs/reiser4/wander.c | 2 -
fs/reiserfs/inode.c | 16 +++++++-------
fs/reiserfs/journal.c | 3 +-
fs/reiserfs/tail_conversion.c | 2 -
15 files changed, 92 insertions(+), 86 deletions(-)
Index: test-2.6.23-rc4-mm1/fs/reiser4/as_ops.c
===================================================================
--- test-2.6.23-rc4-mm1.orig/fs/reiser4/as_ops.c
+++ test-2.6.23-rc4-mm1/fs/reiser4/as_ops.c
@@ -64,24 +64,25 @@
int reiser4_set_page_dirty(struct page *page)
{
/* this page can be unformatted only */
- assert("vs-1734", (page->mapping &&
- page->mapping->host &&
- reiser4_get_super_fake(page->mapping->host->i_sb) !=
- page->mapping->host
- && reiser4_get_cc_fake(page->mapping->host->i_sb) !=
- page->mapping->host
- && reiser4_get_bitmap_fake(page->mapping->host->i_sb) !=
- page->mapping->host));
+ assert("vs-1734", (page_mapping_cache(page) &&
+ page_inode(page) &&
+ reiser4_get_super_fake(page_inode(page)->i_sb) !=
+ page_inode(page)
+ && reiser4_get_cc_fake(page_inode(page)->i_sb) !=
+ page_inode(page)
+ && reiser4_get_bitmap_fake(page_inode(page)->i_sb) !=
+ page_inode(page)));
if (!TestSetPageDirty(page)) {
- struct address_space *mapping = page->mapping;
+ struct address_space *mapping = page_mapping_cache(page);
if (mapping) {
write_lock_irq(&mapping->tree_lock);
/* check for race with truncate */
- if (page->mapping) {
- assert("vs-1652", page->mapping == mapping);
+ if (page_is_pagecache(page)) {
+ assert("vs-1652",
+ page_mapping_cache(page) == mapping);
if (mapping_cap_account_dirty(mapping))
inc_zone_page_state(page,
NR_FILE_DIRTY);
@@ -140,7 +141,7 @@ void reiser4_invalidatepage(struct page
assert("nikita-3137", PageLocked(page));
assert("nikita-3138", !PageWriteback(page));
- inode = page->mapping->host;
+ inode = page_inode(page);
/*
* ->invalidatepage() should only be called for the unformatted
@@ -157,7 +158,8 @@ void reiser4_invalidatepage(struct page
return;
assert("vs-1426", PagePrivate(page));
assert("vs-1427",
- page->mapping == jnode_get_mapping(jnode_by_page(page)));
+ pagecache_consistent(page,
+ jnode_get_mapping(jnode_by_page(page))));
assert("", jprivate(page) != NULL);
assert("", ergo(inode_file_plugin(inode) !=
file_plugin_by_id(CRYPTCOMPRESS_FILE_PLUGIN_ID),
@@ -287,8 +289,8 @@ int reiser4_releasepage(struct page *pag
node = jnode_by_page(page);
assert("nikita-2258", node != NULL);
- assert("reiser4-4", page->mapping != NULL);
- assert("reiser4-5", page->mapping->host != NULL);
+ assert("reiser4-4", page_mapping_cache(page) != NULL);
+ assert("reiser4-5", page_inode(page) != NULL);
if (PageDirty(page))
return 0;
@@ -305,7 +307,7 @@ int reiser4_releasepage(struct page *pag
if (jnode_is_releasable(node)) {
struct address_space *mapping;
- mapping = page->mapping;
+ mapping = page_mapping_cache(page);
jref(node);
/* there is no need to synchronize against
* jnode_extent_write() here, because pages seen by
Index: test-2.6.23-rc4-mm1/fs/reiser4/entd.c
===================================================================
--- test-2.6.23-rc4-mm1.orig/fs/reiser4/entd.c
+++ test-2.6.23-rc4-mm1/fs/reiser4/entd.c
@@ -266,9 +266,9 @@ int write_page_by_ent(struct page *page,
struct wbq rq;
assert("", PageLocked(page));
- assert("", page->mapping != NULL);
+ assert("", page_mapping_cache(page) != NULL);
- sb = page->mapping->host->i_sb;
+ sb = page_inode(page)->i_sb;
ent = get_entd_context(sb);
assert("", ent && ent->done == 0);
@@ -283,7 +283,7 @@ int write_page_by_ent(struct page *page,
* pin inode in memory, unlock page, entd_flush will iput. We can not
* iput here becasue we can not allow delete_inode to be called here
*/
- inode = igrab(page->mapping->host);
+ inode = igrab(page_inode(page));
unlock_page(page);
if (inode == NULL)
/* inode is getting freed */
Index: test-2.6.23-rc4-mm1/fs/reiser4/jnode.c
===================================================================
--- test-2.6.23-rc4-mm1.orig/fs/reiser4/jnode.c
+++ test-2.6.23-rc4-mm1/fs/reiser4/jnode.c
@@ -594,7 +594,7 @@ static jnode *do_jget(reiser4_tree * tre
*/
jnode *result;
- oid_t oid = get_inode_oid(pg->mapping->host);
+ oid_t oid = get_inode_oid(page_inode(pg));
assert("umka-176", pg != NULL);
assert("nikita-2394", PageLocked(pg));
@@ -606,18 +606,18 @@ static jnode *do_jget(reiser4_tree * tre
tree = reiser4_tree_by_page(pg);
/* check hash-table first */
- result = jfind(pg->mapping, pg->index);
+ result = jfind(page_mapping_cache(pg), pg->index);
if (unlikely(result != NULL)) {
spin_lock_jnode(result);
jnode_attach_page(result, pg);
spin_unlock_jnode(result);
- result->key.j.mapping = pg->mapping;
+ result->key.j.mapping = page_mapping_cache(pg);
return result;
}
/* since page is locked, jnode should be allocated with GFP_NOFS flag */
reiser4_ctx_gfp_mask_force(GFP_NOFS);
- result = find_get_jnode(tree, pg->mapping, oid, pg->index);
+ result = find_get_jnode(tree, page_mapping_cache(pg), oid, pg->index);
if (unlikely(IS_ERR(result)))
return result;
/* attach jnode to page */
@@ -646,13 +646,14 @@ jnode *jnode_of_page(struct page * pg)
assert("nikita-2364",
jprivate(pg)->key.j.index == pg->index);
assert("nikita-2367",
- jprivate(pg)->key.j.mapping == pg->mapping);
+ jprivate(pg)->key.j.mapping ==
+ page_mapping_cache(pg));
assert("nikita-2365",
jprivate(pg)->key.j.objectid ==
- get_inode_oid(pg->mapping->host));
+ get_inode_oid(page_inode(pg)));
assert("vs-1200",
jprivate(pg)->key.j.objectid ==
- pg->mapping->host->i_ino);
+ page_inode(pg)->i_ino);
assert("nikita-2356",
jnode_is_unformatted(jnode_by_page(pg)));
}
@@ -812,7 +813,8 @@ static struct page *jnode_get_page_locke
page_cache_get(page);
spin_unlock_jnode(node);
lock_page(page);
- assert("nikita-3134", page->mapping == jnode_get_mapping(node));
+ assert("nikita-3134",
+ page_mapping_cache(page) == jnode_get_mapping(node));
}
spin_lock_jnode(node);
Index: test-2.6.23-rc4-mm1/fs/reiser4/page_cache.c
===================================================================
--- test-2.6.23-rc4-mm1.orig/fs/reiser4/page_cache.c
+++ test-2.6.23-rc4-mm1/fs/reiser4/page_cache.c
@@ -312,7 +312,7 @@ void reiser4_wait_page_writeback(struct
reiser4_tree *reiser4_tree_by_page(const struct page *page /* page to query */ )
{
assert("nikita-2461", page != NULL);
- return &get_super_private(page->mapping->host->i_sb)->tree;
+ return &get_super_private(page_inode(page)->i_sb)->tree;
}
/* completion handler for single page bio-based read.
@@ -400,7 +400,7 @@ int reiser4_page_io(struct page *page, j
assert("nikita-2893", rw == READ || rw == WRITE);
if (rw) {
- if (unlikely(page->mapping->host->i_sb->s_flags & MS_RDONLY)) {
+ if (unlikely(page_inode(page)->i_sb->s_flags & MS_RDONLY)) {
unlock_page(page);
return 0;
}
@@ -441,7 +441,7 @@ static struct bio *page_bio(struct page
struct super_block *super;
reiser4_block_nr blocknr;
- super = page->mapping->host->i_sb;
+ super = page_inode(page)->i_sb;
assert("nikita-2029", super != NULL);
blksz = super->s_blocksize;
assert("nikita-2028", blksz == (int)PAGE_CACHE_SIZE);
@@ -479,7 +479,7 @@ int reiser4_set_page_dirty_internal(stru
{
struct address_space *mapping;
- mapping = page->mapping;
+ mapping = page_mapping_cache(page);
BUG_ON(mapping == NULL);
if (!TestSetPageDirty(page)) {
@@ -528,7 +528,7 @@ int reiser4_writepage(struct page *page,
assert("vs-828", PageLocked(page));
- s = page->mapping->host->i_sb;
+ s = page_inode(page)->i_sb;
ctx = get_current_context_check();
//assert("", can_hit_entd(ctx, s));
Index: test-2.6.23-rc4-mm1/fs/reiser4/wander.c
===================================================================
--- test-2.6.23-rc4-mm1.orig/fs/reiser4/wander.c
+++ test-2.6.23-rc4-mm1/fs/reiser4/wander.c
@@ -765,7 +765,7 @@ static int write_jnodes_to_disk_extent(
spin_lock_jnode(cur);
assert("nikita-3166",
- pg->mapping == jnode_get_mapping(cur));
+ page_mapping_cache(pg) == jnode_get_mapping(cur));
assert("zam-912", !JF_ISSET(cur, JNODE_WRITEBACK));
#if REISER4_DEBUG
spin_lock(&cur->load);
Index: test-2.6.23-rc4-mm1/fs/reiserfs/inode.c
===================================================================
--- test-2.6.23-rc4-mm1.orig/fs/reiserfs/inode.c
+++ test-2.6.23-rc4-mm1/fs/reiserfs/inode.c
@@ -2331,7 +2331,7 @@ static int map_block_for_writepage(struc
static int reiserfs_write_full_page(struct page *page,
struct writeback_control *wbc)
{
- struct inode *inode = page->mapping->host;
+ struct inode *inode = page_inode(page);
unsigned long end_index = inode->i_size >> PAGE_CACHE_SHIFT;
int error = 0;
unsigned long block;
@@ -2546,7 +2546,7 @@ static int reiserfs_readpage(struct file
static int reiserfs_writepage(struct page *page, struct writeback_control *wbc)
{
- struct inode *inode = page->mapping->host;
+ struct inode *inode = page_inode(page);
reiserfs_wait_on_write_block(inode->i_sb);
return reiserfs_write_full_page(page, wbc);
}
@@ -2624,7 +2624,7 @@ static int reiserfs_write_begin(struct f
int reiserfs_prepare_write(struct file *f, struct page *page,
unsigned from, unsigned to)
{
- struct inode *inode = page->mapping->host;
+ struct inode *inode = page_inode(page);
int ret;
int old_ref = 0;
@@ -2679,7 +2679,7 @@ static int reiserfs_write_end(struct fil
loff_t pos, unsigned len, unsigned copied,
struct page *page, void *fsdata)
{
- struct inode *inode = page->mapping->host;
+ struct inode *inode = page_inode(page);
int ret = 0;
int update_sd = 0;
struct reiserfs_transaction_handle *th;
@@ -2772,7 +2772,7 @@ static int reiserfs_write_end(struct fil
int reiserfs_commit_write(struct file *f, struct page *page,
unsigned from, unsigned to)
{
- struct inode *inode = page->mapping->host;
+ struct inode *inode = page_inode(page);
loff_t pos = ((loff_t) page->index << PAGE_CACHE_SHIFT) + to;
int ret = 0;
int update_sd = 0;
@@ -2951,7 +2951,7 @@ static int invalidatepage_can_drop(struc
static void reiserfs_invalidatepage(struct page *page, unsigned long offset)
{
struct buffer_head *head, *bh, *next;
- struct inode *inode = page->mapping->host;
+ struct inode *inode = page_inode(page);
unsigned int curr_off = 0;
int ret = 1;
@@ -2997,7 +2997,7 @@ static void reiserfs_invalidatepage(stru
static int reiserfs_set_page_dirty(struct page *page)
{
- struct inode *inode = page->mapping->host;
+ struct inode *inode = page_inode(page);
if (reiserfs_file_data_log(inode)) {
SetPageChecked(page);
return __set_page_dirty_nobuffers(page);
@@ -3016,7 +3016,7 @@ static int reiserfs_set_page_dirty(struc
*/
static int reiserfs_releasepage(struct page *page, gfp_t unused_gfp_flags)
{
- struct inode *inode = page->mapping->host;
+ struct inode *inode = page_inode(page);
struct reiserfs_journal *j = SB_JOURNAL(inode->i_sb);
struct buffer_head *head;
struct buffer_head *bh;
Index: test-2.6.23-rc4-mm1/fs/reiserfs/journal.c
===================================================================
--- test-2.6.23-rc4-mm1.orig/fs/reiserfs/journal.c
+++ test-2.6.23-rc4-mm1/fs/reiserfs/journal.c
@@ -889,7 +889,8 @@ static int write_ordered_buffers(spinloc
* the buffer. We're safe if we write the page one last time
* after freeing the journal header.
*/
- if (buffer_dirty(bh) && unlikely(bh->b_page->mapping == NULL)) {
+ if (buffer_dirty(bh) &&
+ unlikely(!page_mapping_cache(bh->b_page))) {
spin_unlock(lock);
ll_rw_block(WRITE, 1, &bh);
spin_lock(lock);
Index: test-2.6.23-rc4-mm1/fs/reiserfs/tail_conversion.c
===================================================================
--- test-2.6.23-rc4-mm1.orig/fs/reiserfs/tail_conversion.c
+++ test-2.6.23-rc4-mm1/fs/reiserfs/tail_conversion.c
@@ -151,7 +151,7 @@ void reiserfs_unmap_buffer(struct buffer
interested in removing it from per-sb j_dirty_buffers list, to avoid
BUG() on attempt to write not mapped buffer */
if ((!list_empty(&bh->b_assoc_buffers) || bh->b_private) && bh->b_page) {
- struct inode *inode = bh->b_page->mapping->host;
+ struct inode *inode = page_inode(bh->b_page);
struct reiserfs_journal *j = SB_JOURNAL(inode->i_sb);
spin_lock(&j->j_dirty_buffers_lock);
list_del_init(&bh->b_assoc_buffers);
Index: test-2.6.23-rc4-mm1/fs/reiser4/plugin/cluster.h
===================================================================
--- test-2.6.23-rc4-mm1.orig/fs/reiser4/plugin/cluster.h
+++ test-2.6.23-rc4-mm1/fs/reiser4/plugin/cluster.h
@@ -92,9 +92,9 @@ static inline unsigned off_to_cloff(loff
static inline pgoff_t offset_in_clust(struct page * page)
{
assert("edward-1488", page != NULL);
- assert("edward-1489", page->mapping != NULL);
+ assert("edward-1489", page_mapping_cache(page) != NULL);
- return page_index(page) & ((cluster_nrpages(page->mapping->host)) - 1);
+ return page_index(page) & ((cluster_nrpages(page_inode(page))) - 1);
}
static inline int first_page_in_cluster(struct page * page)
@@ -105,7 +105,7 @@ static inline int first_page_in_cluster(
static inline int last_page_in_cluster(struct page * page)
{
return offset_in_clust(page) ==
- cluster_nrpages(page->mapping->host) - 1;
+ cluster_nrpages(page_inode(page)) - 1;
}
static inline unsigned
@@ -200,11 +200,11 @@ static inline int same_page_cluster(stru
{
assert("edward-1490", p1 != NULL);
assert("edward-1491", p2 != NULL);
- assert("edward-1492", p1->mapping != NULL);
- assert("edward-1493", p2->mapping != NULL);
+ assert("edward-1492", page_is_pagecache(p1));
+ assert("edward-1493", page_is_pagecache(p2));
- return (pg_to_clust(page_index(p1), p1->mapping->host) ==
- pg_to_clust(page_index(p2), p2->mapping->host));
+ return (pg_to_clust(page_index(p1), page_inode(p1)) ==
+ pg_to_clust(page_index(p2), page_inode(p2)));
}
static inline int cluster_is_complete(struct cluster_handle * clust,
Index: test-2.6.23-rc4-mm1/fs/reiser4/plugin/file/cryptcompress.c
===================================================================
--- test-2.6.23-rc4-mm1.orig/fs/reiser4/plugin/file/cryptcompress.c
+++ test-2.6.23-rc4-mm1/fs/reiser4/plugin/file/cryptcompress.c
@@ -1233,16 +1233,16 @@ int readpage_cryptcompress(struct file *
assert("edward-88", PageLocked(page));
assert("vs-976", !PageUptodate(page));
- assert("edward-89", page->mapping && page->mapping->host);
+ assert("edward-89", page_mapping_cache(page) && page_inode(page));
- ctx = reiser4_init_context(page->mapping->host->i_sb);
+ ctx = reiser4_init_context(page_inode(page)->i_sb);
if (IS_ERR(ctx)) {
unlock_page(page);
return PTR_ERR(ctx);
}
assert("edward-113",
ergo(file != NULL,
- page->mapping == file->f_dentry->d_inode->i_mapping));
+ pagecache_consistent(page, file->f_dentry->d_inode->i_mapping)));
if (PageUptodate(page)) {
warning("edward-1338", "page is already uptodate\n");
@@ -1873,7 +1873,8 @@ static void checkout_page_cluster(struct
assert("edward-1480",
i_size_read(inode) <= page_offset(clust->pages[i]));
assert("edward-1481",
- clust->pages[i]->mapping != inode->i_mapping);
+ !pagecache_consistent(clust->pages[i],
+ inode->i_mapping));
unlock_page(clust->pages[i]);
break;
}
@@ -2651,13 +2652,13 @@ int set_cluster_by_page(struct cluster_h
assert("edward-1358", clust != NULL);
assert("edward-1359", page != NULL);
- assert("edward-1360", page->mapping != NULL);
- assert("edward-1361", page->mapping->host != NULL);
+ assert("edward-1360", page_mapping_cache(page) != NULL);
+ assert("edward-1361", page_inode(page) != NULL);
setting_actor =
(clust->pages ? reset_cluster_pgset : alloc_cluster_pgset);
result = setting_actor(clust, count);
- clust->index = pg_to_clust(page->index, page->mapping->host);
+ clust->index = pg_to_clust(page->index, page_inode(page));
return result;
}
Index: test-2.6.23-rc4-mm1/fs/reiser4/plugin/file/file.c
===================================================================
--- test-2.6.23-rc4-mm1.orig/fs/reiser4/plugin/file/file.c
+++ test-2.6.23-rc4-mm1/fs/reiser4/plugin/file/file.c
@@ -790,8 +790,8 @@ int find_or_create_extent(struct page *p
jnode *node;
- assert("vs-1065", page->mapping && page->mapping->host);
- inode = page->mapping->host;
+ assert("vs-1065", page_mapping_cache(page) && page_inode(page));
+ inode = page_inode(page);
lock_page(page);
node = jnode_of_page(page);
@@ -866,8 +866,8 @@ static int capture_page_and_create_exten
int result;
struct inode *inode;
- assert("vs-1084", page->mapping && page->mapping->host);
- inode = page->mapping->host;
+ assert("vs-1084", page_mapping_cache(page) && page_inode(page));
+ inode = page_inode(page);
assert("vs-1139",
unix_file_inode_data(inode)->container == UF_CONTAINER_EXTENTS);
/* page belongs to file */
@@ -905,8 +905,8 @@ commit_write_unix_file(struct file *file
SetPageUptodate(page);
- inode = page->mapping->host;
- ctx = reiser4_init_context(page->mapping->host->i_sb);
+ inode = page_inode(page);
+ ctx = reiser4_init_context(page_inode(page)->i_sb);
if (IS_ERR(ctx))
return PTR_ERR(ctx);
page_cache_get(page);
@@ -1433,9 +1433,9 @@ int readpage_unix_file(struct file *file
assert("vs-1062", PageLocked(page));
assert("vs-976", !PageUptodate(page));
- assert("vs-1061", page->mapping && page->mapping->host);
+ assert("vs-1061", page_mapping_cache(page) && page_inode(page));
- if (page->mapping->host->i_size <= page_offset(page)) {
+ if (page_inode(page)->i_size <= page_offset(page)) {
/* page is out of file */
zero_user_page(page, 0, PAGE_CACHE_SIZE, KM_USER0);
SetPageUptodate(page);
@@ -1443,7 +1443,7 @@ int readpage_unix_file(struct file *file
return 0;
}
- inode = page->mapping->host;
+ inode = page_inode(page);
ctx = reiser4_init_context(inode->i_sb);
if (IS_ERR(ctx)) {
unlock_page(page);
@@ -1476,7 +1476,7 @@ int readpage_unix_file(struct file *file
lock_page(page);
page_cache_release(page);
- if (page->mapping == NULL) {
+ if (!page_is_pagecache(page)) {
/*
* readpage allows truncate to run concurrently. Page was
* truncated while it was not locked
@@ -1604,7 +1604,7 @@ static int uf_readpages_filler(void * da
reiser4_extent *ext;
__u64 ext_index;
int cbk_done = 0;
- struct address_space * mapping = page->mapping;
+ struct address_space * mapping = page_mapping_cache(page);
if (PageUptodate(page)) {
unlock_page(page);
Index: test-2.6.23-rc4-mm1/fs/reiser4/plugin/file_ops.c
===================================================================
--- test-2.6.23-rc4-mm1.orig/fs/reiser4/plugin/file_ops.c
+++ test-2.6.23-rc4-mm1/fs/reiser4/plugin/file_ops.c
@@ -93,7 +93,7 @@ prepare_write_common(struct file *file,
reiser4_context *ctx;
int result;
- ctx = reiser4_init_context(page->mapping->host->i_sb);
+ ctx = reiser4_init_context(page_inode(page)->i_sb);
result = do_prepare_write(file, page, from, to);
/* don't commit transaction under inode semaphore */
@@ -120,13 +120,13 @@ do_prepare_write(struct file *file, stru
if (to - from == PAGE_CACHE_SIZE || PageUptodate(page))
return 0;
- inode = page->mapping->host;
+ inode = page_inode(page);
fplug = inode_file_plugin(inode);
- if (page->mapping->a_ops->readpage == NULL)
+ if (page_mapping_cache(page)->a_ops->readpage == NULL)
return RETERR(-EINVAL);
- result = page->mapping->a_ops->readpage(file, page);
+ result = page_mapping_cache(page)->a_ops->readpage(file, page);
if (result != 0) {
SetPageError(page);
ClearPageUptodate(page);
Index: test-2.6.23-rc4-mm1/fs/reiser4/plugin/item/ctail.c
===================================================================
--- test-2.6.23-rc4-mm1.orig/fs/reiser4/plugin/item/ctail.c
+++ test-2.6.23-rc4-mm1/fs/reiser4/plugin/item/ctail.c
@@ -580,7 +580,7 @@ static int ctail_read_disk_cluster(struc
*/
assert("edward-1528", znode_is_any_locked(clust->hint->lh.node));
- if (page->mapping != inode->i_mapping) {
+ if (pagecache_consistent(page, inode->i_mapping)) {
/* page was truncated */
reiser4_unset_hint(clust->hint);
reset_cluster_params(clust);
@@ -632,7 +632,7 @@ int do_readpage_ctail(struct inode * ino
assert("edward-212", PageLocked(page));
- if (unlikely(page->mapping != inode->i_mapping))
+ if (unlikely(pagecache_consistent(page, inode->i_mapping)))
return AOP_TRUNCATED_PAGE;
if (PageUptodate(page))
goto exit;
@@ -713,7 +713,7 @@ int readpage_ctail(void *vp, struct page
assert("edward-114", clust != NULL);
assert("edward-115", PageLocked(page));
assert("edward-116", !PageUptodate(page));
- assert("edward-118", page->mapping && page->mapping->host);
+ assert("edward-118", page_mapping_cache(page) && page_inode(page));
assert("edward-867", !tfm_cluster_is_uptodate(&clust->tc));
hint = kmalloc(sizeof(*hint), reiser4_ctx_gfp_mask_get());
@@ -730,7 +730,7 @@ int readpage_ctail(void *vp, struct page
}
assert("vs-25", hint->ext_coord.lh == &hint->lh);
- result = do_readpage_ctail(page->mapping->host, clust, page,
+ result = do_readpage_ctail(page_inode(page), clust, page,
ZNODE_READ_LOCK);
assert("edward-213", PageLocked(page));
assert("edward-1163", ergo(!result, PageUptodate(page)));
@@ -781,7 +781,7 @@ static int ctail_readpages_filler(void *
struct cluster_handle * clust = data;
struct inode * inode = clust->file->f_dentry->d_inode;
- assert("edward-1525", page->mapping == inode->i_mapping);
+ assert("edward-1525", pagecache_consistent(page, inode->i_mapping));
if (PageUptodate(page)) {
unlock_page(page);
@@ -1110,7 +1110,7 @@ int scan_ctail(flush_scan * scan)
assert("edward-639", znode_is_write_locked(scan->parent_lock.node));
page = jnode_page(node);
- inode = page->mapping->host;
+ inode = page_inode(page);
if (!reiser4_scanning_left(scan))
return result;
@@ -1516,9 +1516,9 @@ int convert_ctail(flush_pos_t * pos)
assert("edward-264", pos->child != NULL);
assert("edward-265", jnode_page(pos->child) != NULL);
assert("edward-266",
- jnode_page(pos->child)->mapping != NULL);
+ page_mapping_cache(jnode_page(pos->child)) != NULL);
- inode = jnode_page(pos->child)->mapping->host;
+ inode = page_inode(jnode_page(pos->child));
assert("edward-267", inode != NULL);
Index: test-2.6.23-rc4-mm1/fs/reiser4/plugin/item/extent_file_ops.c
===================================================================
--- test-2.6.23-rc4-mm1.orig/fs/reiser4/plugin/item/extent_file_ops.c
+++ test-2.6.23-rc4-mm1/fs/reiser4/plugin/item/extent_file_ops.c
@@ -1124,7 +1124,7 @@ int reiser4_do_readpage_extent(reiser4_e
oid_t oid;
reiser4_block_nr block;
- mapping = page->mapping;
+ mapping = page_mapping_cache(page);
oid = get_inode_oid(mapping->host);
index = page->index;
@@ -1324,14 +1324,14 @@ int reiser4_readpage_extent(void *vp, st
assert("vs-1040", PageLocked(page));
assert("vs-1050", !PageUptodate(page));
- assert("vs-1039", page->mapping && page->mapping->host);
+ assert("vs-1039", page_mapping_cache(page) && page_inode(page));
assert("vs-1044", znode_is_loaded(coord->node));
assert("vs-758", item_is_extent(coord));
assert("vs-1046", coord_is_existing_unit(coord));
assert("vs-1045", znode_is_rlocked(coord->node));
assert("vs-1047",
- page->mapping->host->i_ino ==
+ page_inode(page)->i_ino ==
get_key_objectid(item_key_by_coord(coord, &key)));
check_uf_coord(uf_coord, NULL);
Index: test-2.6.23-rc4-mm1/fs/reiser4/plugin/item/tail.c
===================================================================
--- test-2.6.23-rc4-mm1.orig/fs/reiser4/plugin/item/tail.c
+++ test-2.6.23-rc4-mm1/fs/reiser4/plugin/item/tail.c
@@ -317,7 +317,7 @@ static int do_readpage_tail(uf_coord_t *
/* saving passed coord in order to do not move it by tap. */
init_lh(&lh);
copy_lh(&lh, uf_coord->lh);
- inode = page->mapping->host;
+ inode = page_inode(page);
coord_dup(&coord, &uf_coord->coord);
reiser4_tap_init(&tap, &coord, &lh, ZNODE_READ_LOCK);
@@ -421,14 +421,14 @@ int readpage_tail(void *vp, struct page
assert("umka-2515", PageLocked(page));
assert("umka-2516", !PageUptodate(page));
assert("umka-2517", !jprivate(page) && !PagePrivate(page));
- assert("umka-2518", page->mapping && page->mapping->host);
+ assert("umka-2518", page_mapping_cache(page) && page_inode(page));
assert("umka-2519", znode_is_loaded(coord->node));
assert("umka-2520", item_is_tail(coord));
assert("umka-2521", coord_is_existing_unit(coord));
assert("umka-2522", znode_is_rlocked(coord->node));
assert("umka-2523",
- page->mapping->host->i_ino ==
+ page_inode(page)->i_ino ==
get_key_objectid(item_key_by_coord(coord, &key)));
return do_readpage_tail(uf_coord, page);
-
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