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ocfs2: Remove unused truncate function from alloc.c 

Tristan Ye has done some refactoring against our truncate
process, so some functions like ocfs2_prepare_truncate and
ocfs2_free_truncate_context are no use and we'd better
remove them.

Signed-off-by: Tao Ma <tao.ma@oracle.com>
Signed-off-by: Joel Becker <joel.becker@oracle.com>
This commit is contained in:
Tao Ma 2010-12-23 15:30:44 +08:00 committed by Joel Becker
parent cc548166b2
commit aecf586619
2 changed files with 0 additions and 78 deletions
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74
fs/ocfs2/alloc.c
View File

@ -565,7 +565,6 @@ static inline int ocfs2_et_sanity_check(struct ocfs2_extent_tree *et)
return ret;
}
static void ocfs2_free_truncate_context(struct ocfs2_truncate_context *tc);
static int ocfs2_cache_extent_block_free(struct ocfs2_cached_dealloc_ctxt *ctxt,
struct ocfs2_extent_block *eb);
static void ocfs2_adjust_rightmost_records(handle_t *handle,
@ -7141,64 +7140,6 @@ bail:
return status;
}
/*
* Expects the inode to already be locked.
*/
int ocfs2_prepare_truncate(struct ocfs2_super *osb,
struct inode *inode,
struct buffer_head *fe_bh,
struct ocfs2_truncate_context **tc)
{
int status;
unsigned int new_i_clusters;
struct ocfs2_dinode *fe;
struct ocfs2_extent_block *eb;
struct buffer_head *last_eb_bh = NULL;
mlog_entry_void();
*tc = NULL;
new_i_clusters = ocfs2_clusters_for_bytes(osb->sb,
i_size_read(inode));
fe = (struct ocfs2_dinode *) fe_bh->b_data;
mlog(0, "fe->i_clusters = %u, new_i_clusters = %u, fe->i_size ="
"%llu\n", le32_to_cpu(fe->i_clusters), new_i_clusters,
(unsigned long long)le64_to_cpu(fe->i_size));
*tc = kzalloc(sizeof(struct ocfs2_truncate_context), GFP_KERNEL);
if (!(*tc)) {
status = -ENOMEM;
mlog_errno(status);
goto bail;
}
ocfs2_init_dealloc_ctxt(&(*tc)->tc_dealloc);
if (fe->id2.i_list.l_tree_depth) {
status = ocfs2_read_extent_block(INODE_CACHE(inode),
le64_to_cpu(fe->i_last_eb_blk),
&last_eb_bh);
if (status < 0) {
mlog_errno(status);
goto bail;
}
eb = (struct ocfs2_extent_block *) last_eb_bh->b_data;
}
(*tc)->tc_last_eb_bh = last_eb_bh;
status = 0;
bail:
if (status < 0) {
if (*tc)
ocfs2_free_truncate_context(*tc);
*tc = NULL;
}
mlog_exit_void();
return status;
}
/*
* 'start' is inclusive, 'end' is not.
*/
@ -7273,18 +7214,3 @@ out_commit:
out:
return ret;
}
static void ocfs2_free_truncate_context(struct ocfs2_truncate_context *tc)
{
/*
* The caller is responsible for completing deallocation
* before freeing the context.
*/
if (tc->tc_dealloc.c_first_suballocator != NULL)
mlog(ML_NOTICE,
"Truncate completion has non-empty dealloc context\n");
brelse(tc->tc_last_eb_bh);
kfree(tc);
}

4
fs/ocfs2/alloc.h
View File

@ -228,10 +228,6 @@ struct ocfs2_truncate_context {
int ocfs2_zero_range_for_truncate(struct inode *inode, handle_t *handle,
u64 range_start, u64 range_end);
int ocfs2_prepare_truncate(struct ocfs2_super *osb,
struct inode *inode,
struct buffer_head *fe_bh,
struct ocfs2_truncate_context **tc);
int ocfs2_commit_truncate(struct ocfs2_super *osb,
struct inode *inode,
struct buffer_head *di_bh);