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| author | Mark Fasheh <mark.fasheh@oracle.com> | 2007-07-03 13:34:11 -0700 |
|---|---|---|
| committer | Mark Fasheh <mark.fasheh@oracle.com> | 2007-07-10 17:32:08 -0700 |
| commit | 063c4561f52a74de686fe0ff2f96f4f54c9fecd2 (patch) | |
| tree | 73a202c316df70bdfafa489d70e2863c5c5ea33a /fs/ocfs2/alloc.h | |
| parent | 35edec1d52c075975991471d624b33b9336226f2 (diff) | |
| download | linux-063c4561f52a74de686fe0ff2f96f4f54c9fecd2.tar.gz linux-063c4561f52a74de686fe0ff2f96f4f54c9fecd2.tar.bz2 linux-063c4561f52a74de686fe0ff2f96f4f54c9fecd2.zip | |
ocfs2: support for removing file regions
Provide an internal interface for the removal of arbitrary file regions.
ocfs2_remove_inode_range() takes a byte range within a file and will remove
existing extents within that range. Partial clusters will be zeroed so that
any read from within the region will return zeros.
Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>
Diffstat (limited to 'fs/ocfs2/alloc.h')
| -rw-r--r-- | fs/ocfs2/alloc.h | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/fs/ocfs2/alloc.h b/fs/ocfs2/alloc.h index 752ef860873d..990df48ae8d3 100644 --- a/fs/ocfs2/alloc.h +++ b/fs/ocfs2/alloc.h @@ -41,6 +41,10 @@ int ocfs2_mark_extent_written(struct inode *inode, struct buffer_head *di_bh, handle_t *handle, u32 cpos, u32 len, u32 phys, struct ocfs2_alloc_context *meta_ac, struct ocfs2_cached_dealloc_ctxt *dealloc); +int ocfs2_remove_extent(struct inode *inode, struct buffer_head *di_bh, + u32 cpos, u32 len, handle_t *handle, + struct ocfs2_alloc_context *meta_ac, + struct ocfs2_cached_dealloc_ctxt *dealloc); int ocfs2_num_free_extents(struct ocfs2_super *osb, struct inode *inode, struct ocfs2_dinode *fe); @@ -68,6 +72,12 @@ int ocfs2_begin_truncate_log_recovery(struct ocfs2_super *osb, struct ocfs2_dinode **tl_copy); int ocfs2_complete_truncate_log_recovery(struct ocfs2_super *osb, struct ocfs2_dinode *tl_copy); +int ocfs2_truncate_log_needs_flush(struct ocfs2_super *osb); +int ocfs2_truncate_log_append(struct ocfs2_super *osb, + handle_t *handle, + u64 start_blk, + unsigned int num_clusters); +int __ocfs2_flush_truncate_log(struct ocfs2_super *osb); /* * Process local structure which describes the block unlinks done |