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-rw-r--r--fs/btrfs/compression.c7
1 files changed, 3 insertions, 4 deletions
diff --git a/fs/btrfs/compression.c b/fs/btrfs/compression.c
index 7e214fd254e4..11dcda57e15c 100644
--- a/fs/btrfs/compression.c
+++ b/fs/btrfs/compression.c
@@ -914,8 +914,8 @@ static void free_workspaces(void)
* Given an address space and start and length, compress the bytes into @pages
* that are allocated on demand.
*
- * @out_pages is used to return the number of pages allocated. There
- * may be pages allocated even if we return an error.
+ * @out_pages is an in/out parameter, holds maximum number of pages to allocate
+ * and returns number of actually allocated pages
*
* @total_in is used to return the number of bytes actually read. It
* may be smaller than the input length if we had to exit early because we
@@ -930,7 +930,6 @@ static void free_workspaces(void)
*/
int btrfs_compress_pages(int type, struct address_space *mapping,
u64 start, struct page **pages,
- unsigned long nr_dest_pages,
unsigned long *out_pages,
unsigned long *total_in,
unsigned long *total_out,
@@ -943,7 +942,7 @@ int btrfs_compress_pages(int type, struct address_space *mapping,
ret = btrfs_compress_op[type-1]->compress_pages(workspace, mapping,
start, pages,
- nr_dest_pages, out_pages,
+ out_pages,
total_in, total_out,
max_out);
free_workspace(type, workspace);