Originally, the eb and start were passed separately in case eb is NULL.
Since the readahead has been refactored in 4.6, this is not true anymore
and we can get rid of the parameter.
Signed-off-by: David Sterba <dsterba@xxxxxxxx>
---
fs/btrfs/ctree.h | 2 +-
fs/btrfs/disk-io.c | 4 ++--
fs/btrfs/reada.c | 8 ++------
3 files changed, 5 insertions(+), 9 deletions(-)
diff --git a/fs/btrfs/ctree.h b/fs/btrfs/ctree.h
index 9d8edcb0813c..5ae63f4e60df 100644
--- a/fs/btrfs/ctree.h
+++ b/fs/btrfs/ctree.h
@@ -3661,7 +3661,7 @@ struct reada_control *btrfs_reada_add(struct btrfs_root *root,
int btrfs_reada_wait(void *handle);
void btrfs_reada_detach(void *handle);
int btree_readahead_hook(struct btrfs_fs_info *fs_info,
- struct extent_buffer *eb, u64 start, int err);
+ struct extent_buffer *eb, int err);
static inline int is_fstree(u64 rootid)
{
diff --git a/fs/btrfs/disk-io.c b/fs/btrfs/disk-io.c
index 3a57f99d96aa..9c4ef833ba0b 100644
--- a/fs/btrfs/disk-io.c
+++ b/fs/btrfs/disk-io.c
@@ -747,7 +747,7 @@ static int btree_readpage_end_io_hook(struct btrfs_io_bio *io_bio,
err:
if (reads_done &&
test_and_clear_bit(EXTENT_BUFFER_READAHEAD, &eb->bflags))
- btree_readahead_hook(fs_info, eb, eb->start, ret);
+ btree_readahead_hook(fs_info, eb, ret);
if (ret) {
/*
@@ -772,7 +772,7 @@ static int btree_io_failed_hook(struct page *page, int failed_mirror)
eb->read_mirror = failed_mirror;
atomic_dec(&eb->io_pages);
if (test_and_clear_bit(EXTENT_BUFFER_READAHEAD, &eb->bflags))
- btree_readahead_hook(eb->fs_info, eb, eb->start, -EIO);
+ btree_readahead_hook(eb->fs_info, eb, -EIO);
return -EIO; /* we fixed nothing */
}
diff --git a/fs/btrfs/reada.c b/fs/btrfs/reada.c
index 018a303c91fb..fe068b197fc1 100644
--- a/fs/btrfs/reada.c
+++ b/fs/btrfs/reada.c
@@ -209,12 +209,8 @@ static void __readahead_hook(struct btrfs_fs_info *fs_info,
return;
}
-/*
- * start is passed separately in case eb in NULL, which may be the case with
- * failed I/O
- */
int btree_readahead_hook(struct btrfs_fs_info *fs_info,
- struct extent_buffer *eb, u64 start, int err)
+ struct extent_buffer *eb, int err)
{
int ret = 0;
struct reada_extent *re;
@@ -222,7 +218,7 @@ int btree_readahead_hook(struct btrfs_fs_info *fs_info,
/* find extent */
spin_lock(&fs_info->reada_lock);
re = radix_tree_lookup(&fs_info->reada_tree,
- start >> PAGE_SHIFT);
+ eb->start >> PAGE_SHIFT);
if (re)
re->refcnt++;
spin_unlock(&fs_info->reada_lock);
--
2.10.1
--
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