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Commit a57c8fd2 authored by Mark Fasheh's avatar Mark Fasheh Committed by Joel Becker
Browse files

ocfs2: remove ocfs2_local_alloc_in_range() 



Inodes are always allocated from the global bitmap now so we don't need this
any more. Also, the existing implementation bounces reservations around
needlessly.

Signed-off-by: default avatarMark Fasheh <mfasheh@suse.com>
parent 33d5d380

fs/ocfs2/localalloc.c

+0 −51
Original line number Diff line number Diff line
@@ -479,46 +479,6 @@ out: 
	return status;

}



/* Check to see if the local alloc window is within ac->ac_max_block */

static int ocfs2_local_alloc_in_range(struct inode *inode,

				      struct ocfs2_alloc_context *ac,

				      u32 bits_wanted)

{

	struct ocfs2_super *osb = OCFS2_SB(inode->i_sb);

	struct ocfs2_dinode *alloc;

	struct ocfs2_local_alloc *la;

	int start;

	u64 block_off;



	if (!ac->ac_max_block)

		return 1;



	alloc = (struct ocfs2_dinode *) osb->local_alloc_bh->b_data;

	la = OCFS2_LOCAL_ALLOC(alloc);



	start = ocfs2_local_alloc_find_clear_bits(osb, alloc, &bits_wanted, NULL);

	if (start == -1) {

		mlog_errno(-ENOSPC);

		return 0;

	}



	/*

	 * Converting (bm_off + start + bits_wanted) to blocks gives us

	 * the blkno just past our actual allocation.  This is perfect

	 * to compare with ac_max_block.

	 */

	block_off = ocfs2_clusters_to_blocks(inode->i_sb,

					     le32_to_cpu(la->la_bm_off) +

					     start + bits_wanted);

	mlog(0, "Checking %llu against %llu\n",

	     (unsigned long long)block_off,

	     (unsigned long long)ac->ac_max_block);

	if (block_off > ac->ac_max_block)

		return 0;



	return 1;

}



/*

 * make sure we've got at least bits_wanted contiguous bits in the

 * local alloc. You lose them when you drop i_mutex.
@@ -611,17 +571,6 @@ int ocfs2_reserve_local_alloc_bits(struct ocfs2_super *osb, 
		mlog(0, "Calling in_range for max block %llu\n",

		     (unsigned long long)ac->ac_max_block);



	if (!ocfs2_local_alloc_in_range(local_alloc_inode, ac,

					bits_wanted)) {

		/*

		 * The window is outside ac->ac_max_block.

		 * This errno tells the caller to keep localalloc enabled

		 * but to get the allocation from the main bitmap.

		 */

		status = -EFBIG;

		goto bail;

	}



	ac->ac_inode = local_alloc_inode;

	/* We should never use localalloc from another slot */

	ac->ac_alloc_slot = osb->slot_num;

fs/ocfs2/suballoc.c

+1 −5
Original line number Diff line number Diff line
@@ -941,11 +941,7 @@ static int ocfs2_reserve_clusters_with_limit(struct ocfs2_super *osb, 
		status = ocfs2_reserve_local_alloc_bits(osb,

							bits_wanted,

							*ac);

		if (status == -EFBIG) {

			/* The local alloc window is outside ac_max_block.

			 * use the main bitmap. */

			status = -ENOSPC;

		} else if ((status < 0) && (status != -ENOSPC)) {

		if ((status < 0) && (status != -ENOSPC)) {

			mlog_errno(status);

			goto bail;

		}