summaryrefslogtreecommitdiffstats
path: root/fs
diff options
context:
space:
mode:
Diffstat (limited to 'fs')
-rw-r--r--fs/btrfs/extent_io.c35
-rw-r--r--fs/btrfs/extent_io.h3
2 files changed, 11 insertions, 27 deletions
diff --git a/fs/btrfs/extent_io.c b/fs/btrfs/extent_io.c
index b9019c8..5c00d6a 100644
--- a/fs/btrfs/extent_io.c
+++ b/fs/btrfs/extent_io.c
@@ -2646,6 +2646,8 @@ static int __extent_read_full_page(struct extent_io_tree *tree,
}
}
while (cur <= end) {
+ unsigned long pnr = (last_byte >> PAGE_CACHE_SHIFT) + 1;
+
if (cur >= last_byte) {
char *userpage;
struct extent_state *cached = NULL;
@@ -2733,26 +2735,17 @@ static int __extent_read_full_page(struct extent_io_tree *tree,
continue;
}
- ret = 0;
- if (tree->ops && tree->ops->readpage_io_hook) {
- ret = tree->ops->readpage_io_hook(page, cur,
- cur + iosize - 1);
- }
- if (!ret) {
- unsigned long pnr = (last_byte >> PAGE_CACHE_SHIFT) + 1;
- pnr -= page->index;
- ret = submit_extent_page(READ, tree, page,
+ pnr -= page->index;
+ ret = submit_extent_page(READ, tree, page,
sector, disk_io_size, pg_offset,
bdev, bio, pnr,
end_bio_extent_readpage, mirror_num,
*bio_flags,
this_bio_flag);
- if (!ret) {
- nr++;
- *bio_flags = this_bio_flag;
- }
- }
- if (ret) {
+ if (!ret) {
+ nr++;
+ *bio_flags = this_bio_flag;
+ } else {
SetPageError(page);
unlock_extent(tree, cur, cur + iosize - 1);
}
@@ -3441,15 +3434,9 @@ retry:
* swizzled back from swapper_space to tmpfs file
* mapping
*/
- if (tree->ops &&
- tree->ops->write_cache_pages_lock_hook) {
- tree->ops->write_cache_pages_lock_hook(page,
- data, flush_fn);
- } else {
- if (!trylock_page(page)) {
- flush_fn(data);
- lock_page(page);
- }
+ if (!trylock_page(page)) {
+ flush_fn(data);
+ lock_page(page);
}
if (unlikely(page->mapping != mapping)) {
diff --git a/fs/btrfs/extent_io.h b/fs/btrfs/extent_io.h
index 2eacfab..ff18232 100644
--- a/fs/btrfs/extent_io.h
+++ b/fs/btrfs/extent_io.h
@@ -75,7 +75,6 @@ struct extent_io_ops {
int (*merge_bio_hook)(struct page *page, unsigned long offset,
size_t size, struct bio *bio,
unsigned long bio_flags);
- int (*readpage_io_hook)(struct page *page, u64 start, u64 end);
int (*readpage_io_failed_hook)(struct page *page, int failed_mirror);
int (*readpage_end_io_hook)(struct page *page, u64 start, u64 end,
struct extent_state *state, int mirror);
@@ -90,8 +89,6 @@ struct extent_io_ops {
struct extent_state *other);
void (*split_extent_hook)(struct inode *inode,
struct extent_state *orig, u64 split);
- int (*write_cache_pages_lock_hook)(struct page *page, void *data,
- void (*flush_fn)(void *));
};
struct extent_io_tree {
OpenPOWER on IntegriCloud