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xfs: add a bi_entry helper 

Add a helper to translate from the item list head to the bmap_intent
structure and use it so shorten assignments and avoid the need for extra
local variables.

Inspired-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Darrick J. Wong <djwong@kernel.org>
Reviewed-by: Christoph Hellwig <hch@lst.de>
This commit is contained in:
Darrick J. Wong 2024-02-22 12:44:19 -08:00
parent 372fe0b8ce
commit de47e4c9ad
1 changed files with 9 additions and 10 deletions
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19
fs/xfs/xfs_bmap_item.c
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@ -221,6 +221,11 @@ static const struct xfs_item_ops xfs_bud_item_ops = {
.iop_intent = xfs_bud_item_intent,
};
static inline struct xfs_bmap_intent *bi_entry(const struct list_head *e)
{
return list_entry(e, struct xfs_bmap_intent, bi_list);
}
/* Sort bmap intents by inode. */
static int
xfs_bmap_update_diff_items(
@ -228,11 +233,9 @@ xfs_bmap_update_diff_items(
const struct list_head *a,
const struct list_head *b)
{
struct xfs_bmap_intent *ba;
struct xfs_bmap_intent *bb;
struct xfs_bmap_intent *ba = bi_entry(a);
struct xfs_bmap_intent *bb = bi_entry(b);
ba = container_of(a, struct xfs_bmap_intent, bi_list);
bb = container_of(b, struct xfs_bmap_intent, bi_list);
return ba->bi_owner->i_ino - bb->bi_owner->i_ino;
}
@ -348,11 +351,9 @@ xfs_bmap_update_finish_item(
struct list_head *item,
struct xfs_btree_cur **state)
{
struct xfs_bmap_intent *bi;
struct xfs_bmap_intent *bi = bi_entry(item);
int error;
bi = container_of(item, struct xfs_bmap_intent, bi_list);
error = xfs_bmap_finish_one(tp, bi);
if (!error && bi->bi_bmap.br_blockcount > 0) {
ASSERT(bi->bi_type == XFS_BMAP_UNMAP);
@ -377,9 +378,7 @@ STATIC void
xfs_bmap_update_cancel_item(
struct list_head *item)
{
struct xfs_bmap_intent *bi;
bi = container_of(item, struct xfs_bmap_intent, bi_list);
struct xfs_bmap_intent *bi = bi_entry(item);
xfs_bmap_update_put_group(bi);
kmem_cache_free(xfs_bmap_intent_cache, bi);