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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.c | |
| parent | 35edec1d52c075975991471d624b33b9336226f2 (diff) | |
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.c')
| -rw-r--r-- | fs/ocfs2/alloc.c | 20 |
1 files changed, 10 insertions, 10 deletions
diff --git a/fs/ocfs2/alloc.c b/fs/ocfs2/alloc.c index df186d2e8248..f5e11f4fa952 100644 --- a/fs/ocfs2/alloc.c +++ b/fs/ocfs2/alloc.c @@ -4373,10 +4373,10 @@ out: return ret; } -static 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_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 ret, index; u32 rec_range, trunc_range; @@ -4506,7 +4506,7 @@ out: return ret; } -static inline int ocfs2_truncate_log_needs_flush(struct ocfs2_super *osb) +int ocfs2_truncate_log_needs_flush(struct ocfs2_super *osb) { struct buffer_head *tl_bh = osb->osb_tl_bh; struct ocfs2_dinode *di; @@ -4539,10 +4539,10 @@ static int ocfs2_truncate_log_can_coalesce(struct ocfs2_truncate_log *tl, return current_tail == new_start; } -static int ocfs2_truncate_log_append(struct ocfs2_super *osb, - handle_t *handle, - u64 start_blk, - unsigned int num_clusters) +int ocfs2_truncate_log_append(struct ocfs2_super *osb, + handle_t *handle, + u64 start_blk, + unsigned int num_clusters) { int status, index; unsigned int start_cluster, tl_count; @@ -4698,7 +4698,7 @@ bail: } /* Expects you to already be holding tl_inode->i_mutex */ -static int __ocfs2_flush_truncate_log(struct ocfs2_super *osb) +int __ocfs2_flush_truncate_log(struct ocfs2_super *osb) { int status; unsigned int num_to_flush; |