RE: [f2fs-dev] [PATCH 2/4] f2fs: set buffer_new when new blocks are allocated

From: Chao Yu
Date: Tue Mar 17 2015 - 22:25:15 EST


Hi Jaegeuk,

> -----Original Message-----
> From: Jaegeuk Kim [mailto:jaegeuk@xxxxxxxxxx]
> Sent: Wednesday, March 18, 2015 12:58 AM
> To: linux-kernel@xxxxxxxxxxxxxxx; linux-fsdevel@xxxxxxxxxxxxxxx;
> linux-f2fs-devel@xxxxxxxxxxxxxxxxxxxxx
> Cc: Jaegeuk Kim
> Subject: [f2fs-dev] [PATCH 2/4] f2fs: set buffer_new when new blocks are allocated
>
> This patch modifies to call set_buffer_new, if new blocks are allocated.
>
> Signed-off-by: Jaegeuk Kim <jaegeuk@xxxxxxxxxx>
> ---
> fs/f2fs/data.c | 4 ++--
> 1 file changed, 2 insertions(+), 2 deletions(-)
>
> diff --git a/fs/f2fs/data.c b/fs/f2fs/data.c
> index ba70a78..cefaa67 100644
> --- a/fs/f2fs/data.c
> +++ b/fs/f2fs/data.c
> @@ -257,7 +257,6 @@ static void f2fs_map_bh(struct super_block *sb, pgoff_t pgofs,
> unsigned int blkbits = sb->s_blocksize_bits;
> size_t count;
>
> - set_buffer_new(bh_result);
> map_bh(bh_result, sb, ei->blk + pgofs - ei->fofs);
> count = ei->fofs + ei->len - pgofs;
> if (count < (UINT_MAX >> blkbits))
> @@ -1139,7 +1138,7 @@ static int __get_data_block(struct inode *inode, sector_t iblock,
> goto put_out;
>
> if (dn.data_blkaddr != NULL_ADDR) {
> - set_buffer_new(bh_result);
> + clear_buffer_new(bh_result);

Add clear_buffer_new in f2fs_map_bh?

Thanks,

> map_bh(bh_result, inode->i_sb, dn.data_blkaddr);
> } else if (create) {
> err = __allocate_data_block(&dn);
> @@ -1184,6 +1183,7 @@ get_next:
> if (err)
> goto sync_out;
> allocated = true;
> + set_buffer_new(bh_result);
> blkaddr = dn.data_blkaddr;
> }
> /* Give more consecutive addresses for the readahead */
> --
> 2.1.1

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