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-rw-r--r--fs/f2fs/compress.c19
1 files changed, 19 insertions, 0 deletions
diff --git a/fs/f2fs/compress.c b/fs/f2fs/compress.c
index 9b663eaf4805..7588e4e817b8 100644
--- a/fs/f2fs/compress.c
+++ b/fs/f2fs/compress.c
@@ -881,6 +881,25 @@ bool f2fs_cluster_can_merge_page(struct compress_ctx *cc, pgoff_t index)
return is_page_in_cluster(cc, index);
}
+bool f2fs_all_cluster_page_loaded(struct compress_ctx *cc, struct pagevec *pvec,
+ int index, int nr_pages)
+{
+ unsigned long pgidx;
+ int i;
+
+ if (nr_pages - index < cc->cluster_size)
+ return false;
+
+ pgidx = pvec->pages[index]->index;
+
+ for (i = 1; i < cc->cluster_size; i++) {
+ if (pvec->pages[index + i]->index != pgidx + i)
+ return false;
+ }
+
+ return true;
+}
+
static bool cluster_has_invalid_data(struct compress_ctx *cc)
{
loff_t i_size = i_size_read(cc->inode);