* Does XFS support sharing blocks?
@ 2008-06-12 17:07 Bogdan
2008-06-12 20:16 ` Eric Sandeen
0 siblings, 1 reply; 2+ messages in thread
From: Bogdan @ 2008-06-12 17:07 UTC (permalink / raw)
To: xfs
Hello.
I have a question: does the XFS filesystem support sharing blocks
between objects (files, symlinks, fifos, ...). I mean, can 2 distinct
objects have their data inside one physical block? If not, what is the
"offset" field for in xfs_db output:
xfs_db> inode 19331
xfs_db> bmap -d
data offset 0 startblock 1212 (0/1212) count 1 flag 0
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^ permalink raw reply [flat|nested] 2+ messages in thread
* Re: Does XFS support sharing blocks?
2008-06-12 17:07 Does XFS support sharing blocks? Bogdan
@ 2008-06-12 20:16 ` Eric Sandeen
0 siblings, 0 replies; 2+ messages in thread
From: Eric Sandeen @ 2008-06-12 20:16 UTC (permalink / raw)
To: Bogdan; +Cc: xfs
Bogdan wrote:
> Hello.
>
> I have a question: does the XFS filesystem support sharing blocks
> between objects (files, symlinks, fifos, ...). I mean, can 2 distinct
> objects have their data inside one physical block? If not, what is the
> "offset" field for in xfs_db output:
>
> xfs_db> inode 19331
> xfs_db> bmap -d
> data offset 0 startblock 1212 (0/1212) count 1 flag 0
it's simply the block number in the file.
You have a 1 block file, it's first (and only) block is at physical
block 1212 (block 1212 in AG 0)
-Eric
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