2010-11-30 20:30:09

by Geert Uytterhoeven

[permalink] [raw]
Subject: [PATCH] btrfs: Correct printing of sector_t

If CONFIG_LBDAF=y, `sector_t' becomes `u64' instead of `unsigned long':

fs/btrfs/inode.c: In function ?btrfs_end_dio_bio?:
fs/btrfs/inode.c:5717: warning: format ?%lu? expects type ?long unsigned int?, but argument 4 has type ?sector_t?

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 <[email protected]>
---
fs/btrfs/inode.c | 6 +++---
1 files changed, 3 insertions(+), 3 deletions(-)

diff --git a/fs/btrfs/inode.c b/fs/btrfs/inode.c
index 8039390..fbffe5f 100644
--- a/fs/btrfs/inode.c
+++ b/fs/btrfs/inode.c
@@ -5712,9 +5712,9 @@ static void btrfs_end_dio_bio(struct bio *bio, int err)

if (err) {
printk(KERN_ERR "btrfs direct IO failed ino %lu rw %lu "
- "disk_bytenr %lu len %u err no %d\n",
- dip->inode->i_ino, bio->bi_rw, bio->bi_sector,
- bio->bi_size, err);
+ "disk_bytenr %llu len %u err no %d\n",
+ dip->inode->i_ino, bio->bi_rw,
+ (unsigned long long)bio->bi_sector, bio->bi_size, err);
dip->errors = 1;

/*
--
1.7.0.4

Gr{oetje,eeting}s,

Geert

--
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- [email protected]

In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
-- Linus Torvalds


2010-11-30 21:05:56

by Randy Dunlap

[permalink] [raw]
Subject: Re: [PATCH] btrfs: Correct printing of sector_t

On Tue, 30 Nov 2010 21:30:01 +0100 (CET) Geert Uytterhoeven wrote:

> If CONFIG_LBDAF=y, `sector_t' becomes `u64' instead of `unsigned long':
>
> fs/btrfs/inode.c: In function ‘btrfs_end_dio_bio’:
> fs/btrfs/inode.c:5717: warning: format ‘%lu’ expects type ‘long unsigned int’, but argument 4 has type ‘sector_t’
>
> 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 <[email protected]>

Acked-by: Randy Dunlap <[email protected]>


> ---
> fs/btrfs/inode.c | 6 +++---
> 1 files changed, 3 insertions(+), 3 deletions(-)
>
> diff --git a/fs/btrfs/inode.c b/fs/btrfs/inode.c
> index 8039390..fbffe5f 100644
> --- a/fs/btrfs/inode.c
> +++ b/fs/btrfs/inode.c
> @@ -5712,9 +5712,9 @@ static void btrfs_end_dio_bio(struct bio *bio, int err)
>
> if (err) {
> printk(KERN_ERR "btrfs direct IO failed ino %lu rw %lu "
> - "disk_bytenr %lu len %u err no %d\n",
> - dip->inode->i_ino, bio->bi_rw, bio->bi_sector,
> - bio->bi_size, err);
> + "disk_bytenr %llu len %u err no %d\n",
> + dip->inode->i_ino, bio->bi_rw,
> + (unsigned long long)bio->bi_sector, bio->bi_size, err);
> dip->errors = 1;
>
> /*
> --
> 1.7.0.4
>
> Gr{oetje,eeting}s,
>
> Geert
>
> --
> Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- [email protected]
>
> In personal conversations with technical people, I call myself a hacker. But
> when I'm talking to journalists I just say "programmer" or something like that.
> -- Linus Torvalds
> --
> To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
> the body of a message to [email protected]
> More majordomo info at http://vger.kernel.org/majordomo-info.html
> Please read the FAQ at http://www.tux.org/lkml/


---
~Randy
*** Remember to use Documentation/SubmitChecklist when testing your code ***

2010-12-01 01:31:49

by Li Zefan

[permalink] [raw]
Subject: Re: [PATCH] btrfs: Correct printing of sector_t

Geert Uytterhoeven wrote:
> If CONFIG_LBDAF=y, `sector_t' becomes `u64' instead of `unsigned long':
>
> fs/btrfs/inode.c: In function ?btrfs_end_dio_bio?:
> fs/btrfs/inode.c:5717: warning: format ?%lu? expects type ?long unsigned int?, but argument 4 has type ?sector_t?
>
> 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 <[email protected]>

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 <[email protected]>
---
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