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Diffstat (limited to 'fs')
-rw-r--r--fs/buffer.c5
-rw-r--r--fs/mpage.c7
-rw-r--r--fs/super.c3
3 files changed, 15 insertions, 0 deletions
diff --git a/fs/buffer.c b/fs/buffer.c
index a08bb8e61c6f..de05703b184b 100644
--- a/fs/buffer.c
+++ b/fs/buffer.c
@@ -41,6 +41,7 @@
#include <linux/bitops.h>
#include <linux/mpage.h>
#include <linux/bit_spinlock.h>
+#include <linux/cleancache.h>
static int fsync_buffers_list(spinlock_t *lock, struct list_head *list);
@@ -269,6 +270,10 @@ void invalidate_bdev(struct block_device *bdev)
invalidate_bh_lrus();
lru_add_drain_all(); /* make sure all lru add caches are flushed */
invalidate_mapping_pages(mapping, 0, -1);
+ /* 99% of the time, we don't need to flush the cleancache on the bdev.
+ * But, for the strange corners, lets be cautious
+ */
+ cleancache_flush_inode(mapping);
}
EXPORT_SYMBOL(invalidate_bdev);
diff --git a/fs/mpage.c b/fs/mpage.c
index 0afc809e46e0..fdfae9fa98cd 100644
--- a/fs/mpage.c
+++ b/fs/mpage.c
@@ -27,6 +27,7 @@
#include <linux/writeback.h>
#include <linux/backing-dev.h>
#include <linux/pagevec.h>
+#include <linux/cleancache.h>
/*
* I/O completion handler for multipage BIOs.
@@ -271,6 +272,12 @@ do_mpage_readpage(struct bio *bio, struct page *page, unsigned nr_pages,
SetPageMappedToDisk(page);
}
+ if (fully_mapped && blocks_per_page == 1 && !PageUptodate(page) &&
+ cleancache_get_page(page) == 0) {
+ SetPageUptodate(page);
+ goto confused;
+ }
+
/*
* This page will go to BIO. Do we need to send this BIO off first?
*/
diff --git a/fs/super.c b/fs/super.c
index 8a06881b1920..b383fa407740 100644
--- a/fs/super.c
+++ b/fs/super.c
@@ -31,6 +31,7 @@
#include <linux/mutex.h>
#include <linux/backing-dev.h>
#include <linux/rculist_bl.h>
+#include <linux/cleancache.h>
#include "internal.h"
@@ -112,6 +113,7 @@ static struct super_block *alloc_super(struct file_system_type *type)
s->s_maxbytes = MAX_NON_LFS;
s->s_op = &default_op;
s->s_time_gran = 1000000000;
+ s->cleancache_poolid = -1;
}
out:
return s;
@@ -177,6 +179,7 @@ void deactivate_locked_super(struct super_block *s)
{
struct file_system_type *fs = s->s_type;
if (atomic_dec_and_test(&s->s_active)) {
+ cleancache_flush_fs(s);
fs->kill_sb(s);
/*
* We need to call rcu_barrier so all the delayed rcu free