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Date: Fri, 13 Feb 2009 14:56:57 +0300
From: Edward Shishkin <edward.shishkin@...il.com>
To: Andrew Morton <akpm@...ux-foundation.org>
Cc: Nick Piggin <npiggin@...e.de>, Ryan Hope <rmh3093@...il.com>,
Randy Dunlap <randy.dunlap@...cle.com>,
linux-kernel@...r.kernel.org,
Edward Shishkin <edward.shishkin@...il.com>,
ReiserFS Mailing List <reiserfs-devel@...r.kernel.org>
Subject: [patch 3/4] reiser4: use set_page_dirty_notag
Use the core library functions set_page_dirty_notag()
and __set_page_dirty_nobuffers() instead of intenal
reiser4_set_page_dirty().
Signed-off-by: Edward Shishkin<edward.shishkin@...il.com>
---
fs/reiser4/as_ops.c | 31 +++++--------------------------
fs/reiser4/entd.c | 2 +-
fs/reiser4/page_cache.c | 21 ---------------------
fs/reiser4/page_cache.h | 2 --
fs/reiser4/plugin/file/cryptcompress.c | 6 +++---
fs/reiser4/plugin/file/file.c | 12 ++----------
fs/reiser4/plugin/item/extent_file_ops.c | 2 +-
fs/reiser4/txnmgr.c | 2 +-
fs/reiser4/wander.c | 9 +++++----
9 files changed, 18 insertions(+), 69 deletions(-)
--- mmotm.orig/fs/reiser4/as_ops.c
+++ mmotm/fs/reiser4/as_ops.c
@@ -67,33 +67,12 @@ int reiser4_set_page_dirty(struct page *
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 &&
+ reiser4_get_cc_fake(page->mapping->host->i_sb) !=
+ page->mapping->host &&
+ reiser4_get_bitmap_fake(page->mapping->host->i_sb) !=
page->mapping->host));
-
- if (!TestSetPageDirty(page)) {
- struct address_space *mapping = page->mapping;
-
- if (mapping) {
- spin_lock_irq(&mapping->tree_lock);
-
- /* check for race with truncate */
- if (page->mapping) {
- assert("vs-1652", page->mapping == mapping);
- if (mapping_cap_account_dirty(mapping))
- inc_zone_page_state(page,
- NR_FILE_DIRTY);
- radix_tree_tag_set(&mapping->page_tree,
- page->index,
- PAGECACHE_TAG_REISER4_MOVED);
- }
- spin_unlock_irq(&mapping->tree_lock);
- __mark_inode_dirty(mapping->host, I_DIRTY_PAGES);
- }
- }
- return 0;
+ return __set_page_dirty_nobuffers(page);
}
/* ->invalidatepage method for reiser4 */
--- mmotm.orig/fs/reiser4/entd.c
+++ mmotm/fs/reiser4/entd.c
@@ -277,7 +277,7 @@ int write_page_by_ent(struct page *page,
* page. Re-dirty page before unlocking so that if ent thread fails to
* write it - it will remain dirty
*/
- reiser4_set_page_dirty_internal(page);
+ set_page_dirty_notag(page);
/*
* pin inode in memory, unlock page, entd_flush will iput. We can not
--- mmotm.orig/fs/reiser4/page_cache.c
+++ mmotm/fs/reiser4/page_cache.c
@@ -458,27 +458,6 @@ static struct bio *page_bio(struct page
return ERR_PTR(RETERR(-ENOMEM));
}
-/* this function is internally called by jnode_make_dirty() */
-int reiser4_set_page_dirty_internal(struct page *page)
-{
- struct address_space *mapping;
-
- mapping = page->mapping;
- BUG_ON(mapping == NULL);
-
- if (!TestSetPageDirty(page)) {
- if (mapping_cap_account_dirty(mapping))
- inc_zone_page_state(page, NR_FILE_DIRTY);
-
- __mark_inode_dirty(mapping->host, I_DIRTY_PAGES);
- }
-
- /* znode must be dirty ? */
- if (mapping->host == reiser4_get_super_fake(mapping->host->i_sb))
- assert("", JF_ISSET(jprivate(page), JNODE_DIRTY));
- return 0;
-}
-
#if 0
static int can_hit_entd(reiser4_context *ctx, struct super_block *s)
{
--- mmotm.orig/fs/reiser4/page_cache.h
+++ mmotm/fs/reiser4/page_cache.h
@@ -18,8 +18,6 @@ extern void reiser4_done_formatted_fake(
extern reiser4_tree *reiser4_tree_by_page(const struct page *);
-extern int reiser4_set_page_dirty_internal(struct page *);
-
#define reiser4_submit_bio(rw, bio) submit_bio((rw), (bio))
extern void reiser4_wait_page_writeback(struct page *);
--- mmotm.orig/fs/reiser4/plugin/file/cryptcompress.c
+++ mmotm/fs/reiser4/plugin/file/cryptcompress.c
@@ -1260,7 +1260,7 @@ static void set_cluster_pages_dirty(stru
assert("edward-968", pg != NULL);
lock_page(pg);
assert("edward-1065", PageUptodate(pg));
- reiser4_set_page_dirty_internal(pg);
+ set_page_dirty_notag(pg);
unlock_page(pg);
mark_page_accessed(pg);
}
@@ -2027,7 +2027,7 @@ static int write_hole(struct inode *inod
lock_page(page);
zero_user(page, pg_off, to_pg);
SetPageUptodate(page);
- reiser4_set_page_dirty_internal(page);
+ set_page_dirty_notag(page);
mark_page_accessed(page);
unlock_page(page);
@@ -2747,7 +2747,7 @@ static loff_t do_write_cryptcompress(str
goto err2;
}
SetPageUptodate(clust.pages[i]);
- reiser4_set_page_dirty_internal(clust.pages[i]);
+ set_page_dirty_notag(clust.pages[i]);
flush_dcache_page(clust.pages[i]);
mark_page_accessed(clust.pages[i]);
unlock_page(clust.pages[i]);
--- mmotm.orig/fs/reiser4/plugin/file/file.c
+++ mmotm/fs/reiser4/plugin/file/file.c
@@ -912,12 +912,9 @@ int write_end_unix_file(struct file *fil
*
* As a result of (3) ->writepage may be called on a dirty page without
* jnode. Such page is called "anonymous" in reiser4. Certain work-loads
- * (iozone) generate huge number of anonymous pages. Emergency flush handles
- * this situation by creating jnode for anonymous page, starting IO on the
- * page, and marking jnode with JNODE_KEEPME bit so that it's not thrown out of
- * memory. Such jnode is also called anonymous.
+ * (iozone) generate huge number of anonymous pages.
*
- * reiser4_sync_sb() method tries to insert anonymous pages and jnodes into
+ * reiser4_sync_sb() method tries to insert anonymous pages into
* tree. This is done by capture_anonymous_*() functions below.
*/
@@ -996,11 +993,6 @@ capture_anonymous_pages(struct address_s
*index = pvec.pages[i - 1]->index + 1;
for (i = 0; i < pagevec_count(&pvec); i++) {
- /*
- * tag PAGECACHE_TAG_REISER4_MOVED will be cleared by
- * reiser4_set_page_dirty_internal which is called when jnode is
- * captured
- */
result = capture_anonymous_page(pvec.pages[i]);
if (result == 1)
nr++;
--- mmotm.orig/fs/reiser4/plugin/item/extent_file_ops.c
+++ mmotm/fs/reiser4/plugin/item/extent_file_ops.c
@@ -1073,7 +1073,7 @@ ssize_t reiser4_write_extent(struct file
}
flush_dcache_page(page);
- reiser4_set_page_dirty_internal(page);
+ set_page_dirty_notag(page);
unlock_page(page);
nr_dirty++;
--- mmotm.orig/fs/reiser4/txnmgr.c
+++ mmotm/fs/reiser4/txnmgr.c
@@ -2426,7 +2426,7 @@ void znode_make_dirty(znode * z)
spin_unlock_jnode(node);
/* reiser4 file write code calls set_page_dirty for
* unformatted nodes, for formatted nodes we do it here. */
- reiser4_set_page_dirty_internal(page);
+ set_page_dirty_notag(page);
page_cache_release(page);
/* bump version counter in znode */
z->version = znode_build_version(jnode_get_tree(node));
--- mmotm.orig/fs/reiser4/wander.c
+++ mmotm/fs/reiser4/wander.c
@@ -16,10 +16,11 @@
This code guarantees that those blocks that are defined to be part of an
atom either all take effect or none of them take effect.
- Relocate set nodes are submitted to write by the jnode_flush() routine, and
- the overwrite set is submitted by reiser4_write_log(). This is because with
- the overwrite set we seek to optimize writes, and with the relocate set we
- seek to cause disk order to correlate with the parent first pre-order.
+ The "relocate set" of nodes are submitted to write by the jnode_flush()
+ routine, and the "overwrite set" is submitted by reiser4_write_log().
+ This is because with the overwrite set we seek to optimize writes, and
+ with the relocate set we seek to cause disk order to correlate with the
+ "parent first order" (preorder).
reiser4_write_log() allocates and writes wandered blocks and maintains
additional on-disk structures of the atom as wander records (each wander
--
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