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authorJan Schmidt <list.btrfs@jan-o-sch.net>2011-06-13 20:02:58 +0200
committerJan Schmidt <list.btrfs@jan-o-sch.net>2011-09-29 12:54:28 +0200
commit8ddc7d9cd0a00062247c732b96386ec2462bdbc7 (patch)
treeea855863b3f6429002bfe31a3e522b4370d59d55 /fs/btrfs
parent193ea74b2729e6ddc08fb6bde6e15a3bd4d94071 (diff)
btrfs: add mirror_num to extent_read_full_page
Currently, extent_read_full_page always assumes we are trying to read mirror 0, which generally is the best we can do. To add flexibility, pass it as a parameter. This will be needed by scrub fixup code. Signed-off-by: Jan Schmidt <list.btrfs@jan-o-sch.net>
Diffstat (limited to 'fs/btrfs')
-rw-r--r--fs/btrfs/disk-io.c2
-rw-r--r--fs/btrfs/extent_io.c6
-rw-r--r--fs/btrfs/extent_io.h2
-rw-r--r--fs/btrfs/inode.c2
4 files changed, 6 insertions, 6 deletions
diff --git a/fs/btrfs/disk-io.c b/fs/btrfs/disk-io.c
index 07b3ac662e1..dc034380253 100644
--- a/fs/btrfs/disk-io.c
+++ b/fs/btrfs/disk-io.c
@@ -908,7 +908,7 @@ static int btree_readpage(struct file *file, struct page *page)
{
struct extent_io_tree *tree;
tree = &BTRFS_I(page->mapping->host)->io_tree;
- return extent_read_full_page(tree, page, btree_get_extent);
+ return extent_read_full_page(tree, page, btree_get_extent, 0);
}
static int btree_releasepage(struct page *page, gfp_t gfp_flags)
diff --git a/fs/btrfs/extent_io.c b/fs/btrfs/extent_io.c
index d418164a35f..afebb95e349 100644
--- a/fs/btrfs/extent_io.c
+++ b/fs/btrfs/extent_io.c
@@ -2076,16 +2076,16 @@ out:
}
int extent_read_full_page(struct extent_io_tree *tree, struct page *page,
- get_extent_t *get_extent)
+ get_extent_t *get_extent, int mirror_num)
{
struct bio *bio = NULL;
unsigned long bio_flags = 0;
int ret;
- ret = __extent_read_full_page(tree, page, get_extent, &bio, 0,
+ ret = __extent_read_full_page(tree, page, get_extent, &bio, mirror_num,
&bio_flags);
if (bio)
- ret = submit_one_bio(READ, bio, 0, bio_flags);
+ ret = submit_one_bio(READ, bio, mirror_num, bio_flags);
return ret;
}
diff --git a/fs/btrfs/extent_io.h b/fs/btrfs/extent_io.h
index 7b2f0c3e792..a9dd994bf82 100644
--- a/fs/btrfs/extent_io.h
+++ b/fs/btrfs/extent_io.h
@@ -185,7 +185,7 @@ int unlock_extent_cached(struct extent_io_tree *tree, u64 start, u64 end,
int try_lock_extent(struct extent_io_tree *tree, u64 start, u64 end,
gfp_t mask);
int extent_read_full_page(struct extent_io_tree *tree, struct page *page,
- get_extent_t *get_extent);
+ get_extent_t *get_extent, int mirror_num);
int __init extent_io_init(void);
void extent_io_exit(void);
diff --git a/fs/btrfs/inode.c b/fs/btrfs/inode.c
index b2d004ad66a..efee8c7cfa4 100644
--- a/fs/btrfs/inode.c
+++ b/fs/btrfs/inode.c
@@ -6289,7 +6289,7 @@ int btrfs_readpage(struct file *file, struct page *page)
{
struct extent_io_tree *tree;
tree = &BTRFS_I(page->mapping->host)->io_tree;
- return extent_read_full_page(tree, page, btrfs_get_extent);
+ return extent_read_full_page(tree, page, btrfs_get_extent, 0);
}
static int btrfs_writepage(struct page *page, struct writeback_control *wbc)