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xfs: add a xefi_entry helper

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

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Darrick J. Wong <djwong@kernel.org>
Signed-off-by: Darrick J. Wong <djwong@kernel.org>
This commit is contained in:
Christoph Hellwig 2024-07-02 11:22:52 -07:00 committed by Darrick J. Wong
parent 62d597a197
commit 649c0c2b86
1 changed files with 10 additions and 12 deletions
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22
fs/xfs/xfs_extfree_item.c
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@ -303,6 +303,11 @@ static const struct xfs_item_ops xfs_efd_item_ops = {
.iop_intent = xfs_efd_item_intent,
};
static inline struct xfs_extent_free_item *xefi_entry(const struct list_head *e)
{
return list_entry(e, struct xfs_extent_free_item, xefi_list);
}
/*
* Fill the EFD with all extents from the EFI when we need to roll the
* transaction and continue with a new EFI.
@ -338,11 +343,8 @@ xfs_extent_free_diff_items(
const struct list_head *a,
const struct list_head *b)
{
struct xfs_extent_free_item *ra;
struct xfs_extent_free_item *rb;
ra = container_of(a, struct xfs_extent_free_item, xefi_list);
rb = container_of(b, struct xfs_extent_free_item, xefi_list);
struct xfs_extent_free_item *ra = xefi_entry(a);
struct xfs_extent_free_item *rb = xefi_entry(b);
return ra->xefi_pag->pag_agno - rb->xefi_pag->pag_agno;
}
@ -444,7 +446,7 @@ xfs_extent_free_finish_item(
struct xfs_btree_cur **state)
{
struct xfs_owner_info oinfo = { };
struct xfs_extent_free_item *xefi;
struct xfs_extent_free_item *xefi = xefi_entry(item);
struct xfs_efd_log_item *efdp = EFD_ITEM(done);
struct xfs_mount *mp = tp->t_mountp;
struct xfs_extent *extp;
@ -452,7 +454,6 @@ xfs_extent_free_finish_item(
xfs_agblock_t agbno;
int error = 0;
xefi = container_of(item, struct xfs_extent_free_item, xefi_list);
agbno = XFS_FSB_TO_AGBNO(mp, xefi->xefi_startblock);
oinfo.oi_owner = xefi->xefi_owner;
@ -504,9 +505,7 @@ STATIC void
xfs_extent_free_cancel_item(
struct list_head *item)
{
struct xfs_extent_free_item *xefi;
xefi = container_of(item, struct xfs_extent_free_item, xefi_list);
struct xfs_extent_free_item *xefi = xefi_entry(item);
xfs_extent_free_put_group(xefi);
kmem_cache_free(xfs_extfree_item_cache, xefi);
@ -526,14 +525,13 @@ xfs_agfl_free_finish_item(
struct xfs_owner_info oinfo = { };
struct xfs_mount *mp = tp->t_mountp;
struct xfs_efd_log_item *efdp = EFD_ITEM(done);
struct xfs_extent_free_item *xefi;
struct xfs_extent_free_item *xefi = xefi_entry(item);
struct xfs_extent *extp;
struct xfs_buf *agbp;
int error;
xfs_agblock_t agbno;
uint next_extent;
xefi = container_of(item, struct xfs_extent_free_item, xefi_list);
ASSERT(xefi->xefi_blockcount == 1);
agbno = XFS_FSB_TO_AGBNO(mp, xefi->xefi_startblock);
oinfo.oi_owner = xefi->xefi_owner;