[merged] vfs-guard-end-of-device-for-mpage-interface.patch removed from -mm tree

[merged] vfs-guard-end-of-device-for-mpage-interface.patch removed from -mm tree

[akpm]

The patch titled
     Subject: vfs: guard end of device for mpage interface
has been removed from the -mm tree.  Its filename was
     vfs-guard-end-of-device-for-mpage-interface.patch

This patch was dropped because it was merged into mainline or a subsystem tree

------------------------------------------------------
From: Akinobu Mita <akinobu.mita@gmail.com>
Subject: vfs: guard end of device for mpage interface

Add guard_bio_eod() check for mpage code in order to allow us to do IO
even on the odd last sectors of a device, even if the block size is some
multiple of the physical sector size.

Using mpage_readpages() for block device requires this guard check.

Signed-off-by: Akinobu Mita <akinobu.mita@gmail.com>
Cc: Jens Axboe <axboe@kernel.dk>
Cc: Alexander Viro <viro@zeniv.linux.org.uk>
Cc: Jeff Moyer <jmoyer@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
---

 fs/buffer.c   |    2 +-
 fs/internal.h |    5 +++++
 fs/mpage.c    |    2 ++
 3 files changed, 8 insertions(+), 1 deletion(-)

diff -puN fs/buffer.c~vfs-guard-end-of-device-for-mpage-interface fs/buffer.c
--- a/fs/buffer.c~vfs-guard-end-of-device-for-mpage-interface
+++ a/fs/buffer.c
@@ -2966,7 +2966,7 @@ static void end_bio_bh_io_sync(struct bi
  * errors, this only handles the "we need to be able to
  * do IO at the final sector" case.
  */
-static void guard_bio_eod(int rw, struct bio *bio)
+void guard_bio_eod(int rw, struct bio *bio)
 {
 	sector_t maxsector;
 	struct bio_vec *bvec = &bio->bi_io_vec[bio->bi_vcnt - 1];
diff -puN fs/internal.h~vfs-guard-end-of-device-for-mpage-interface fs/internal.h
--- a/fs/internal.h~vfs-guard-end-of-device-for-mpage-interface
+++ a/fs/internal.h
@@ -35,6 +35,11 @@ static inline int __sync_blockdev(struct
 #endif
 
 /*
+ * buffer.c
+ */
+extern void guard_bio_eod(int rw, struct bio *bio);
+
+/*
  * char_dev.c
  */
 extern void __init chrdev_init(void);
diff -puN fs/mpage.c~vfs-guard-end-of-device-for-mpage-interface fs/mpage.c
--- a/fs/mpage.c~vfs-guard-end-of-device-for-mpage-interface
+++ a/fs/mpage.c
@@ -28,6 +28,7 @@
 #include <linux/backing-dev.h>
 #include <linux/pagevec.h>
 #include <linux/cleancache.h>
+#include "internal.h"
 
 /*
  * I/O completion handler for multipage BIOs.
@@ -57,6 +58,7 @@ static void mpage_end_io(struct bio *bio
 static struct bio *mpage_bio_submit(int rw, struct bio *bio)
 {
 	bio->bi_end_io = mpage_end_io;
+	guard_bio_eod(rw, bio);
 	submit_bio(rw, bio);
 	return NULL;
 }
_

Patches currently in -mm which might be from akinobu.mita@gmail.com are

origin.patch
linux-next.patch