linux-kernel - Re: [PATCH 1/2 v2] fs: add SEEK_HOLE and SEEK

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Date:	Thu, 05 May 2011 20:54:02 +0200
From:	Marco Stornelli <marco.stornelli@...il.com>
To:	Josef Bacik <josef@...hat.com>
CC:	linux-kernel@...r.kernel.org, linux-fsdevel@...r.kernel.org,
	linux-btrfs@...r.kernel.org
Subject: Re: [PATCH 1/2 v2] fs: add SEEK_HOLE and SEEK_DATA flags

Il 04/05/2011 19:58, Josef Bacik ha scritto:
> +		if (offset>= i_size_read(inode)) {
> +			mutex_unlock(&inode->i_mutex);
> +			return -ENXIO;
> +		}
> +		offset = i_size_read(inode);
> +		break;

Here maybe it's possible to use offset bigger than i_size, because 
i_size_read is "atomic" but something can happen between two calls, 
isn't it?

Marco
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