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Date: Wed, 29 Apr 2009 08:59:44 -0500 From: Eric Sandeen <sandeen@...hat.com> To: "Aneesh Kumar K.V" <aneesh.kumar@...ux.vnet.ibm.com> CC: cmm@...ibm.com, tytso@....edu, linux-ext4@...r.kernel.org Subject: Re: [PATCH -V4 2/2] ext4: Use -1 as the fake block number for delayed new buffer_head Aneesh Kumar K.V wrote: > Block number '0' should not be used as the fake block number for > the delayed new buffer. This will result in vfs calling umap_underlying_metadata for > block number '0'. So use -1 instead. > > Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@...ux.vnet.ibm.com> > > --- > fs/ext4/inode.c | 2 +- > 1 files changed, 1 insertions(+), 1 deletions(-) > > diff --git a/fs/ext4/inode.c b/fs/ext4/inode.c > index 12dcfab..c7c2156 100644 > --- a/fs/ext4/inode.c > +++ b/fs/ext4/inode.c > @@ -2318,7 +2318,7 @@ static int ext4_da_get_block_prep(struct inode *inode, sector_t iblock, > /* not enough space to reserve */ > return ret; > > - map_bh(bh_result, inode->i_sb, 0); > + map_bh(bh_result, inode->i_sb, -1); > set_buffer_new(bh_result); > set_buffer_delay(bh_result); > } else if (ret > 0) { this seems fine too, thanks. -Eric -- To unsubscribe from this list: send the line "unsubscribe linux-ext4" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
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