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(parent: fb6e711) | patch
nilfs2: return EBUSY against delete request on snapshot
authorRyusuke Konishi <konishi.ryusuke@lab.ntt.co.jp>
Sat, 30 May 2009 10:08:09 +0000 (19:08 +0900)
committerRyusuke Konishi <konishi.ryusuke@lab.ntt.co.jp>
Wed, 10 Jun 2009 14:41:12 +0000 (23:41 +0900)
commit30c25be71fcbd87fd33518045cc014e69bff3d6f
tree89b9ea993834f57b7390a24fdfacf6099b854b54tree | snapshot
parentfb6e7113ae3ba6c7d0de77c6ccbcfa659899ff0fcommit | diff
nilfs2: return EBUSY against delete request on snapshot

This helps userland programs like the rmcp command to distinguish
error codes returned against a checkpoint removal request.

Previously -EPERM was returned, and not discriminable from real
permission errors.  This also allows removal of the latest checkpoint
because the deletion leads to create a new checkpoint, and thus it's
harmless for the filesystem.

Signed-off-by: Ryusuke Konishi <konishi.ryusuke@lab.ntt.co.jp>
fs/nilfs2/cpfile.c diff | blob | history
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