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-rw-r--r--include/linux/pagemap.h9
-rw-r--r--include/trace/events/btrfs.h12
2 files changed, 21 insertions, 0 deletions
diff --git a/include/linux/pagemap.h b/include/linux/pagemap.h
index 8c9947fd62f3..4c1ffe1d5dac 100644
--- a/include/linux/pagemap.h
+++ b/include/linux/pagemap.h
@@ -981,6 +981,15 @@ static inline unsigned int readahead_count(struct readahead_control *rac)
return rac->_nr_pages;
}
+/**
+ * readahead_batch_length - The number of bytes in the current batch.
+ * @rac: The readahead request.
+ */
+static inline loff_t readahead_batch_length(struct readahead_control *rac)
+{
+ return rac->_batch_count * PAGE_SIZE;
+}
+
static inline unsigned long dir_pages(struct inode *inode)
{
return (unsigned long)(inode->i_size + PAGE_SIZE - 1) >>
diff --git a/include/trace/events/btrfs.h b/include/trace/events/btrfs.h
index 0551ea65374f..a41dd8a0c730 100644
--- a/include/trace/events/btrfs.h
+++ b/include/trace/events/btrfs.h
@@ -1903,6 +1903,18 @@ DEFINE_EVENT(btrfs__block_group, btrfs_add_unused_block_group,
TP_ARGS(bg_cache)
);
+DEFINE_EVENT(btrfs__block_group, btrfs_add_reclaim_block_group,
+ TP_PROTO(const struct btrfs_block_group *bg_cache),
+
+ TP_ARGS(bg_cache)
+);
+
+DEFINE_EVENT(btrfs__block_group, btrfs_reclaim_block_group,
+ TP_PROTO(const struct btrfs_block_group *bg_cache),
+
+ TP_ARGS(bg_cache)
+);
+
DEFINE_EVENT(btrfs__block_group, btrfs_skip_unused_block_group,
TP_PROTO(const struct btrfs_block_group *bg_cache),