On 2013/8/2 2:57, Srinivas Eeda wrote:
> On 08/01/2013 01:38 AM, Younger Liu wrote:
>> On 2013/8/1 15:20, Joel Becker wrote:
>>> Basically, there's so little in the cache that stealing would be too
>>> complex. Really we just want to fall back to the global, and if that is
>>> empty, you're near e
On 08/01/2013 01:38 AM, Younger Liu wrote:
> On 2013/8/1 15:20, Joel Becker wrote:
>> Basically, there's so little in the cache that stealing would be too
>> complex. Really we just want to fall back to the global, and if that is
>> empty, you're near enough ENOSPC that it doesn't much matter.
>>
The complexity is not worth it. 2G*16 nodes is only 32G. That's rounding
error in systems that use this file system. And you are assuming that all
other nodes have all 2G in their cache. If a node runs out of space, a more
realistic scenario is that most other nodes are also close to the end.
On
On 2013/8/1 15:20, Joel Becker wrote:
> Basically, there's so little in the cache that stealing would be too
> complex. Really we just want to fall back to the global, and if that is
> empty, you're near enough ENOSPC that it doesn't much matter.
>
> Joel
>
Localalloc is a mount option. When mou
Basically, there's so little in the cache that stealing would be too
complex. Really we just want to fall back to the global, and if that is
empty, you're near enough ENOSPC that it doesn't much matter.
Joel
On Wed, Jul 31, 2013 at 08:33:48PM -0700, Sunil Mushran wrote:
> Because it makes no sen
Because it makes no sense. Unlike inode/extent allocs, local_alloc is a
temporary cache. If you fail to allocate, you fallback to the global bitmap.
On Sat, Jul 27, 2013 at 3:27 AM, Younger Liu wrote:
> Hi,
> While analyzing ocfs2 block allocation, I found:
> When claiming space from inode_
Hi,
While analyzing ocfs2 block allocation, I found:
When claiming space from inode_alloc (or extent_alloc) system files,
if there is no enough space in inode_alloc (or extent_alloc) and
global_bitmap, it could steal space from other slots.
But when claiming space from local_alloc system fi
