Geert Uytterhoeven wrote:
> If CONFIG_LBDAF=y, `sector_t' becomes `u64' instead of `unsigned long':
>
> fs/btrfs/inode.c: In function ʽbtrfs_end_dio_bioʼ:
> fs/btrfs/inode.c:5717: warning: format ʽ%luʼ expects type ʽlong unsigned intʼ, but argument 4 has type ʽsector_tʼ
>
> Hence always cast it to `unsigned long long' for printing.
>
> Introduced by commit e65e1535542931e51189832264cd282e5899e4b9 ("btrfs: fix
> panic caused by direct IO")
>
> Signed-off-by: Geert Uytterhoeven <geert@xxxxxxxxxxxxxx>
While we are at this..
===================
[PATCH] btrfs: Fix compile warning when CONFIG_MIGRATION is not set
Fix this newly introduced warning:
fs/btrfs/disk-io.c:699: warning: 'btree_migratepage' defined but not used
Signed-off-by: Li Zefan <lizf@xxxxxxxxxxxxxx>
---
fs/btrfs/disk-io.c | 7 +++----
1 files changed, 3 insertions(+), 4 deletions(-)
diff --git a/fs/btrfs/disk-io.c b/fs/btrfs/disk-io.c
index 33b6d45..7648247 100644
--- a/fs/btrfs/disk-io.c
+++ b/fs/btrfs/disk-io.c
@@ -696,6 +696,7 @@ static int btree_submit_bio_hook(struct inode *inode, int rw, struct bio *bio,
__btree_submit_bio_done);
}
+#ifdef CONFIG_MIGRATION
static int btree_migratepage(struct address_space *mapping,
struct page *newpage, struct page *page)
{
@@ -712,12 +713,10 @@ static int btree_migratepage(struct address_space *mapping,
if (page_has_private(page) &&
!try_to_release_page(page, GFP_KERNEL))
return -EAGAIN;
-#ifdef CONFIG_MIGRATION
+
return migrate_page(mapping, newpage, page);
-#else
- return -ENOSYS;
-#endif
}
+#endif
static int btree_writepage(struct page *page, struct writeback_control *wbc)
{
--
1.6.3
--
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