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| author |   Zongxun Wang <wangzongxun@huawei.com> | 2014-02-06 12:04:20 -0800 |
|---|---|---|
| committer |   Linus Torvalds <torvalds@linux-foundation.org> | 2014-02-06 13:48:51 -0800 |
| commit | fb951eb5e167de9f07973ce0dfff674a2019bfab (patch) | |
| tree | 4af8a9764fa9050b2aa70cf6683cdff8becb342d /fs/ocfs2/localalloc.h | |
| parent | Documentation/kernel-parameters.txt: fix memmap= language (diff) | |
| download | linux-dev-fb951eb5e167de9f07973ce0dfff674a2019bfab.tar.xz linux-dev-fb951eb5e167de9f07973ce0dfff674a2019bfab.zip | |
ocfs2: free allocated clusters if error occurs after ocfs2_claim_clusters
Even if using the same jbd2 handle, we cannot rollback a transaction.
So once some error occurs after successfully allocating clusters, the
allocated clusters will never be used and it means they are lost. For
example, call ocfs2_claim_clusters successfully when expanding a file,
but failed in ocfs2_insert_extent. So we need free the allocated
clusters if they are not used indeed.
Signed-off-by: Zongxun Wang <wangzongxun@huawei.com>
Signed-off-by: Joseph Qi <joseph.qi@huawei.com>
Acked-by: Joel Becker <jlbec@evilplan.org>
Cc: Mark Fasheh <mfasheh@suse.com>
Cc: Li Zefan <lizefan@huawei.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'fs/ocfs2/localalloc.h')
| -rw-r--r-- | fs/ocfs2/localalloc.h | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/fs/ocfs2/localalloc.h b/fs/ocfs2/localalloc.h index 1be9b5864460..44a7d1fb2dec 100644 --- a/fs/ocfs2/localalloc.h +++ b/fs/ocfs2/localalloc.h @@ -55,6 +55,12 @@ int ocfs2_claim_local_alloc_bits(struct ocfs2_super *osb, u32 *bit_off, u32 *num_bits); +int ocfs2_free_local_alloc_bits(struct ocfs2_super *osb, + handle_t *handle, + struct ocfs2_alloc_context *ac, + u32 bit_off, + u32 num_bits); + void ocfs2_local_alloc_seen_free_bits(struct ocfs2_super *osb, unsigned int num_clusters); void ocfs2_la_enable_worker(struct work_struct *work); |