From: "Darrick J. Wong" <darrick.wong@oracle.com>
To: Goldwyn Rodrigues <rgoldwyn@suse.de>
Cc: linux-fsdevel@vger.kernel.org, linux-btrfs@vger.kernel.org,
hch@lst.de, david@fromorbit.com, riteshh@linux.ibm.com,
Goldwyn Rodrigues <rgoldwyn@suse.com>
Subject: Re: [PATCH 01/15] iomap: Introduce CONFIG_FS_IOMAP_DEBUG
Date: Sun, 1 Sep 2019 13:50:01 -0700 [thread overview]
Message-ID: <20190901205001.GB568270@magnolia> (raw)
In-Reply-To: <20190901200836.14959-2-rgoldwyn@suse.de>
On Sun, Sep 01, 2019 at 03:08:22PM -0500, Goldwyn Rodrigues wrote:
> From: Goldwyn Rodrigues <rgoldwyn@suse.com>
>
> To improve debugging abilities, especially invalid option
> asserts.
>
> Signed-off-by: Goldwyn Rodrigues <rgoldwyn@suse.com>
> ---
> fs/Kconfig | 3 +++
> include/linux/iomap.h | 11 +++++++++++
> 2 files changed, 14 insertions(+)
>
> diff --git a/fs/Kconfig b/fs/Kconfig
> index bfb1c6095c7a..4bed5df9b55f 100644
> --- a/fs/Kconfig
> +++ b/fs/Kconfig
> @@ -19,6 +19,9 @@ if BLOCK
>
> config FS_IOMAP
> bool
> +config FS_IOMAP_DEBUG
> + bool "Debugging for the iomap code"
> + depends on FS_IOMAP
>
> source "fs/ext2/Kconfig"
> source "fs/ext4/Kconfig"
> diff --git a/include/linux/iomap.h b/include/linux/iomap.h
> index bc499ceae392..209b6c93674e 100644
> --- a/include/linux/iomap.h
> +++ b/include/linux/iomap.h
> @@ -18,6 +18,17 @@ struct page;
> struct vm_area_struct;
> struct vm_fault;
>
> +#ifdef CONFIG_FS_IOMAP_DEBUG
> +#define iomap_assert(expr) \
> + if(!(expr)) { \
> + printk( "Assertion failed! %s,%s,%s,line=%d\n",\
> +#expr,__FILE__,__func__,__LINE__); \
> + BUG(); \
Hmm, this log message ought to have a priority level, right?
#define IOMAP_ASSERT(expr) do { WARN_ON(!(expr)); } while(0)
(or crib ASSERT/ass{fail,warn} from XFS? :D)
> + }
> +#else
> +#define iomap_assert(expr)
((void)0)
So we don't just have stray semicolons in the code stream?
--D
> +#endif
> +
> /*
> * Types of block ranges for iomap mappings:
> */
> --
> 2.16.4
>
next prev parent reply other threads:[~2019-09-01 20:52 UTC|newest]
Thread overview: 36+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-09-01 20:08 [PATCH v3 0/15] Btrfs iomap Goldwyn Rodrigues
2019-09-01 20:08 ` [PATCH 01/15] iomap: Introduce CONFIG_FS_IOMAP_DEBUG Goldwyn Rodrigues
2019-09-01 20:50 ` Darrick J. Wong [this message]
2019-09-02 16:29 ` Christoph Hellwig
2019-09-02 17:09 ` Darrick J. Wong
2019-09-02 17:18 ` Christoph Hellwig
2019-09-03 15:06 ` Darrick J. Wong
2019-09-01 20:08 ` [PATCH 02/15] iomap: Use a IOMAP_COW/srcmap for a read-modify-write I/O Goldwyn Rodrigues
2019-09-02 16:31 ` Christoph Hellwig
2019-09-03 3:18 ` Darrick J. Wong
2019-09-03 14:12 ` Goldwyn Rodrigues
2019-09-03 14:05 ` Goldwyn Rodrigues
2019-09-03 14:56 ` Darrick J. Wong
2019-09-01 20:08 ` [PATCH 03/15] iomap: Read page from srcmap for IOMAP_COW Goldwyn Rodrigues
2019-09-02 16:31 ` Christoph Hellwig
2019-09-02 17:01 ` Darrick J. Wong
2019-09-02 17:13 ` Christoph Hellwig
2019-09-01 20:08 ` [PATCH 04/15] btrfs: Eliminate PagePrivate for btrfs data pages Goldwyn Rodrigues
2019-09-01 20:08 ` [PATCH 05/15] btrfs: Add a simple buffered iomap write Goldwyn Rodrigues
2019-09-01 20:08 ` [PATCH 06/15] btrfs: Add CoW in iomap based writes Goldwyn Rodrigues
2019-09-01 20:08 ` [PATCH 07/15] btrfs: remove buffered write code made unnecessary Goldwyn Rodrigues
2019-09-01 20:08 ` [PATCH 08/15] fs: Export generic_file_buffered_read() Goldwyn Rodrigues
2019-09-01 20:08 ` [PATCH 09/15] btrfs: basic direct read operation Goldwyn Rodrigues
2019-09-01 20:08 ` [PATCH 10/15] btrfs: Carve out btrfs_get_extent_map_write() out of btrfs_get_blocks_write() Goldwyn Rodrigues
2019-09-01 20:08 ` [PATCH 11/15] btrfs: Rename __endio_write_update_ordered() to btrfs_update_ordered_extent() Goldwyn Rodrigues
2019-09-01 20:08 ` [PATCH 12/15] iomap: use a function pointer for dio submits Goldwyn Rodrigues
2019-09-02 16:41 ` Christoph Hellwig
2019-09-01 20:08 ` [PATCH 13/15] btrfs: Use iomap_dio_rw for performing direct I/O writes Goldwyn Rodrigues
2019-09-01 20:08 ` [PATCH 14/15] btrfs: Remove btrfs_dio_data and __btrfs_direct_write Goldwyn Rodrigues
2019-09-01 20:08 ` [PATCH 15/15] btrfs: update inode size during bio completion Goldwyn Rodrigues
2019-09-02 16:43 ` [PATCH v3 0/15] Btrfs iomap Christoph Hellwig
2019-09-03 3:51 ` Shiyang Ruan
2019-09-03 4:29 ` Darrick J. Wong
2019-09-03 5:00 ` Shiyang Ruan
2019-09-03 6:21 ` Christoph Hellwig
2019-09-03 13:44 ` Goldwyn Rodrigues
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