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authorDave Kleikamp <shaggy@linux.vnet.ibm.com>2006-12-20 15:55:35 -0600
committerLinus Torvalds <torvalds@woody.osdl.org>2006-12-21 09:24:03 -0800
commitd0e671a932cb9c653b27393cec26aec012a8d97e (patch)
tree9625f4462e2e0f6a5756b20a074dcf039761e554 /fs/jfs/jfs_metapage.c
parentfba2591bf4e418b6c3f9f8794c9dd8fe40ae7bd9 (diff)
downloadblackbird-op-linux-d0e671a932cb9c653b27393cec26aec012a8d97e.tar.gz
blackbird-op-linux-d0e671a932cb9c653b27393cec26aec012a8d97e.zip
[PATCH] Fix JFS after clear_page_dirty() removal
This patch removes some questionable code that attempted to make a no-longer-used page easier to reclaim. Calling metapage_writepage against such a page will not result in any I/O being performed, so removing this code shouldn't be a big deal. [ It's likely that we could have just replaced the "clear_page_dirty()" call with a call to "cancel_dirty_page()" instead, but in the meantime this is cleaner and simpler anyway, so unless there is some overriding reason (and Dave implies there isn't) I'll just use this patch as-is. - Linus ] Signed-off-by: Dave Kleikamp <shaggy@linux.vnet.ibm.com> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'fs/jfs/jfs_metapage.c')
-rw-r--r--fs/jfs/jfs_metapage.c15
1 files changed, 1 insertions, 14 deletions
diff --git a/fs/jfs/jfs_metapage.c b/fs/jfs/jfs_metapage.c
index b1a1c7296014..ceaf03b94935 100644
--- a/fs/jfs/jfs_metapage.c
+++ b/fs/jfs/jfs_metapage.c
@@ -764,22 +764,9 @@ void release_metapage(struct metapage * mp)
} else if (mp->lsn) /* discard_metapage doesn't remove it */
remove_from_logsync(mp);
-#if MPS_PER_PAGE == 1
- /*
- * If we know this is the only thing in the page, we can throw
- * the page out of the page cache. If pages are larger, we
- * don't want to do this.
- */
-
- /* Retest mp->count since we may have released page lock */
- if (test_bit(META_discard, &mp->flag) && !mp->count) {
- clear_page_dirty(page);
- ClearPageUptodate(page);
- }
-#else
/* Try to keep metapages from using up too much memory */
drop_metapage(page, mp);
-#endif
+
unlock_page(page);
page_cache_release(page);
}
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