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authorMark Fasheh <mfasheh@suse.com>2010-03-17 00:01:00 -0400
committerJoel Becker <joel.becker@oracle.com>2010-05-05 21:17:31 -0400
commita57c8fd2ad238258cc983049008aea5f985804b2 (patch)
tree2d9142401ca7a03df6edaefcc3fd937f2f24fc8d /fs/ocfs2/localalloc.c
parent33d5d380d667ad264675cfdb297dfc3c5b6542cc (diff)
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: Mark Fasheh <mfasheh@suse.com>
Diffstat (limited to 'fs/ocfs2/localalloc.c')
-rw-r--r--fs/ocfs2/localalloc.c51
1 files changed, 0 insertions, 51 deletions
diff --git a/fs/ocfs2/localalloc.c b/fs/ocfs2/localalloc.c
index 7fe8149a0002..880e4bc827be 100644
--- a/fs/ocfs2/localalloc.c
+++ b/fs/ocfs2/localalloc.c
@@ -479,46 +479,6 @@ out:
479 return status; 479 return status;
480} 480}
481 481
482/* Check to see if the local alloc window is within ac->ac_max_block */
483static int ocfs2_local_alloc_in_range(struct inode *inode,
484 struct ocfs2_alloc_context *ac,
485 u32 bits_wanted)
486{
487 struct ocfs2_super *osb = OCFS2_SB(inode->i_sb);
488 struct ocfs2_dinode *alloc;
489 struct ocfs2_local_alloc *la;
490 int start;
491 u64 block_off;
492
493 if (!ac->ac_max_block)
494 return 1;
495
496 alloc = (struct ocfs2_dinode *) osb->local_alloc_bh->b_data;
497 la = OCFS2_LOCAL_ALLOC(alloc);
498
499 start = ocfs2_local_alloc_find_clear_bits(osb, alloc, &bits_wanted, NULL);
500 if (start == -1) {
501 mlog_errno(-ENOSPC);
502 return 0;
503 }
504
505 /*
506 * Converting (bm_off + start + bits_wanted) to blocks gives us
507 * the blkno just past our actual allocation. This is perfect
508 * to compare with ac_max_block.
509 */
510 block_off = ocfs2_clusters_to_blocks(inode->i_sb,
511 le32_to_cpu(la->la_bm_off) +
512 start + bits_wanted);
513 mlog(0, "Checking %llu against %llu\n",
514 (unsigned long long)block_off,
515 (unsigned long long)ac->ac_max_block);
516 if (block_off > ac->ac_max_block)
517 return 0;
518
519 return 1;
520}
521
522/* 482/*
523 * make sure we've got at least bits_wanted contiguous bits in the 483 * make sure we've got at least bits_wanted contiguous bits in the
524 * local alloc. You lose them when you drop i_mutex. 484 * local alloc. You lose them when you drop i_mutex.
@@ -611,17 +571,6 @@ int ocfs2_reserve_local_alloc_bits(struct ocfs2_super *osb,
611 mlog(0, "Calling in_range for max block %llu\n", 571 mlog(0, "Calling in_range for max block %llu\n",
612 (unsigned long long)ac->ac_max_block); 572 (unsigned long long)ac->ac_max_block);
613 573
614 if (!ocfs2_local_alloc_in_range(local_alloc_inode, ac,
615 bits_wanted)) {
616 /*
617 * The window is outside ac->ac_max_block.
618 * This errno tells the caller to keep localalloc enabled
619 * but to get the allocation from the main bitmap.
620 */
621 status = -EFBIG;
622 goto bail;
623 }
624
625 ac->ac_inode = local_alloc_inode; 574 ac->ac_inode = local_alloc_inode;
626 /* We should never use localalloc from another slot */ 575 /* We should never use localalloc from another slot */
627 ac->ac_alloc_slot = osb->slot_num; 576 ac->ac_alloc_slot = osb->slot_num;