From: "Matthew Wilcox (Oracle)"
Implement the new readahead aop and convert all callers (block_dev,
exfat, ext2, fat, gfs2, hpfs, isofs, jfs, nilfs2, ocfs2, omfs, qnx6,
reiserfs & udf). The callers are all trivial except for GFS2 & OCFS2.
Signed-off-by: Matthew Wilcox (Oracle)
Reviewed-by: Junxiao Bi # ocfs2
Reviewed-by: Joseph Qi # ocfs2
Reviewed-by: Dave Chinner
Reviewed-by: John Hubbard
Reviewed-by: Christoph Hellwig
Reviewed-by: William Kucharski
---
drivers/staging/exfat/exfat_super.c | 7 +++---
fs/block_dev.c | 7 +++---
fs/ext2/inode.c | 10 +++-
fs/fat/inode.c | 7 +++---
fs/gfs2/aops.c | 23 ++---
fs/hpfs/file.c | 7 +++---
fs/iomap/buffered-io.c | 2 +-
fs/isofs/inode.c| 7 +++---
fs/jfs/inode.c | 7 +++---
fs/mpage.c | 38 +
fs/nilfs2/inode.c | 15 +++-
fs/ocfs2/aops.c | 34 ++
fs/omfs/file.c | 7 +++---
fs/qnx6/inode.c | 7 +++---
fs/reiserfs/inode.c | 8 +++---
fs/udf/inode.c | 7 +++---
include/linux/mpage.h | 4 +--
mm/migrate.c| 2 +-
18 files changed, 73 insertions(+), 126 deletions(-)
diff --git a/drivers/staging/exfat/exfat_super.c
b/drivers/staging/exfat/exfat_super.c
index b81d2a87b82e..96aad9b16d31 100644
--- a/drivers/staging/exfat/exfat_super.c
+++ b/drivers/staging/exfat/exfat_super.c
@@ -3002,10 +3002,9 @@ static int exfat_readpage(struct file *file, struct page
*page)
return mpage_readpage(page, exfat_get_block);
}
-static int exfat_readpages(struct file *file, struct address_space *mapping,
- struct list_head *pages, unsigned int nr_pages)
+static void exfat_readahead(struct readahead_control *rac)
{
- return mpage_readpages(mapping, pages, nr_pages, exfat_get_block);
+ mpage_readahead(rac, exfat_get_block);
}
static int exfat_writepage(struct page *page, struct writeback_control *wbc)
@@ -3104,7 +3103,7 @@ static sector_t _exfat_bmap(struct address_space
*mapping, sector_t block)
static const struct address_space_operations exfat_aops = {
.readpage= exfat_readpage,
- .readpages = exfat_readpages,
+ .readahead = exfat_readahead,
.writepage = exfat_writepage,
.writepages = exfat_writepages,
.write_begin = exfat_write_begin,
diff --git a/fs/block_dev.c b/fs/block_dev.c
index 69bf2fb6f7cd..2fd9c7bd61f6 100644
--- a/fs/block_dev.c
+++ b/fs/block_dev.c
@@ -614,10 +614,9 @@ static int blkdev_readpage(struct file * file, struct page
* page)
return block_read_full_page(page, blkdev_get_block);
}
-static int blkdev_readpages(struct file *file, struct address_space *mapping,
- struct list_head *pages, unsigned nr_pages)
+static void blkdev_readahead(struct readahead_control *rac)
{
- return mpage_readpages(mapping, pages, nr_pages, blkdev_get_block);
+ mpage_readahead(rac, blkdev_get_block);
}
static int blkdev_write_begin(struct file *file, struct address_space *mapping,
@@ -2062,7 +2061,7 @@ static int blkdev_writepages(struct address_space
*mapping,
static const struct address_space_operations def_blk_aops = {
.readpage = blkdev_readpage,
- .readpages = blkdev_readpages,
+ .readahead = blkdev_readahead,
.writepage = blkdev_writepage,
.write_begin= blkdev_write_begin,
.write_end = blkdev_write_end,
diff --git a/fs/ext2/inode.c b/fs/ext2/inode.c
index c885cf7d724b..2875c0a705b5 100644
--- a/fs/ext2/inode.c
+++ b/fs/ext2/inode.c
@@ -877,11 +877,9 @@ static int ext2_readpage(struct file *file, struct page
*page)
return mpage_readpage(page, ext2_get_block);
}
-static int
-ext2_readpages(struct file *file, struct address_space *mapping,
- struct list_head *pages, unsigned nr_pages)
+static void ext2_readahead(struct readahead_control *rac)
{
- return mpage_readpages(mapping, pages, nr_pages, ext2_get_block);
+ mpage_readahead(rac, ext2_get_block);
}
static int
@@ -967,7 +965,7 @@ ext2_dax_writepages(struct address_space *mapping, struct
writeback_control *wbc
const struct address_space_operations ext2_aops = {
.readpage = ext2_readpage,
- .readpages = ext2_readpages,
+ .readahead = ext2_readahead,
.writepage = ext2_writepage,
.write_begin= ext2_write_begin,
.write_end = ext2_write_end,
@@ -981,7 +979,7 @@ const struct address_space_operations ext2_aops = {
const struct address_space_operations ext2_nobh_aops = {
.readpage =
