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xfs: remove the nr_extents argument to xfs_iext_remove 

We only have two places that remove 2 extents at the same time, so unroll
the loop there.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Darrick J. Wong <darrick.wong@oracle.com>
Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
This commit is contained in:
Christoph Hellwig 2017-11-03 10:34:47 -07:00 committed by Darrick J. Wong
parent 0254c2f253
commit c38ccf5990
3 changed files with 23 additions and 35 deletions
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26
fs/xfs/libxfs/xfs_bmap.c
View File

@ -1645,7 +1645,8 @@ xfs_bmap_add_extent_delay_real(
*/
LEFT.br_blockcount += PREV.br_blockcount + RIGHT.br_blockcount;
xfs_iext_remove(bma->ip, &bma->icur, 2, state);
xfs_iext_remove(bma->ip, &bma->icur, state);
xfs_iext_remove(bma->ip, &bma->icur, state);
xfs_iext_prev(ifp, &bma->icur);
xfs_iext_update_extent(bma->ip, state, &bma->icur, &LEFT);
(*nextents)--;
@ -1680,7 +1681,7 @@ xfs_bmap_add_extent_delay_real(
old = LEFT;
LEFT.br_blockcount += PREV.br_blockcount;
xfs_iext_remove(bma->ip, &bma->icur, 1, state);
xfs_iext_remove(bma->ip, &bma->icur, state);
xfs_iext_prev(ifp, &bma->icur);
xfs_iext_update_extent(bma->ip, state, &bma->icur, &LEFT);
@ -1707,7 +1708,7 @@ xfs_bmap_add_extent_delay_real(
PREV.br_blockcount += RIGHT.br_blockcount;
xfs_iext_next(ifp, &bma->icur);
xfs_iext_remove(bma->ip, &bma->icur, 1, state);
xfs_iext_remove(bma->ip, &bma->icur, state);
xfs_iext_prev(ifp, &bma->icur);
xfs_iext_update_extent(bma->ip, state, &bma->icur, &PREV);
@ -2144,7 +2145,8 @@ xfs_bmap_add_extent_unwritten_real(
*/
LEFT.br_blockcount += PREV.br_blockcount + RIGHT.br_blockcount;
xfs_iext_remove(ip, icur, 2, state);
xfs_iext_remove(ip, icur, state);
xfs_iext_remove(ip, icur, state);
xfs_iext_prev(ifp, icur);
xfs_iext_update_extent(ip, state, icur, &LEFT);
XFS_IFORK_NEXT_SET(ip, whichfork,
@ -2182,7 +2184,7 @@ xfs_bmap_add_extent_unwritten_real(
*/
LEFT.br_blockcount += PREV.br_blockcount;
xfs_iext_remove(ip, icur, 1, state);
xfs_iext_remove(ip, icur, state);
xfs_iext_prev(ifp, icur);
xfs_iext_update_extent(ip, state, icur, &LEFT);
XFS_IFORK_NEXT_SET(ip, whichfork,
@ -2216,7 +2218,7 @@ xfs_bmap_add_extent_unwritten_real(
PREV.br_state = new->br_state;
xfs_iext_next(ifp, icur);
xfs_iext_remove(ip, icur, 1, state);
xfs_iext_remove(ip, icur, state);
xfs_iext_prev(ifp, icur);
xfs_iext_update_extent(ip, state, icur, &PREV);
@ -2583,7 +2585,7 @@ xfs_bmap_add_extent_hole_delay(
left.br_startblock = nullstartblock(newlen);
left.br_blockcount = temp;
xfs_iext_remove(ip, icur, 1, state);
xfs_iext_remove(ip, icur, state);
xfs_iext_prev(ifp, icur);
xfs_iext_update_extent(ip, state, icur, &left);
break;
@ -2728,7 +2730,7 @@ xfs_bmap_add_extent_hole_real(
*/
left.br_blockcount += new->br_blockcount + right.br_blockcount;
xfs_iext_remove(ip, icur, 1, state);
xfs_iext_remove(ip, icur, state);
xfs_iext_prev(ifp, icur);
xfs_iext_update_extent(ip, state, icur, &left);
@ -4686,7 +4688,7 @@ xfs_bmap_del_extent_delay(
/*
* Matches the whole extent. Delete the entry.
*/
xfs_iext_remove(ip, icur, 1, state);
xfs_iext_remove(ip, icur, state);
xfs_iext_prev(ifp, icur);
break;
case BMAP_LEFT_FILLING:
@ -4787,7 +4789,7 @@ xfs_bmap_del_extent_cow(
/*
* Matches the whole extent. Delete the entry.
*/
xfs_iext_remove(ip, icur, 1, state);
xfs_iext_remove(ip, icur, state);
xfs_iext_prev(ifp, icur);
break;
case BMAP_LEFT_FILLING:
@ -4927,7 +4929,7 @@ xfs_bmap_del_extent_real(
/*
* Matches the whole extent. Delete the entry.
*/
xfs_iext_remove(ip, icur, 1, state);
xfs_iext_remove(ip, icur, state);
xfs_iext_prev(ifp, icur);
XFS_IFORK_NEXT_SET(ip, whichfork,
XFS_IFORK_NEXTENTS(ip, whichfork) - 1);
@ -5553,7 +5555,7 @@ xfs_bmse_merge(
return error;
done:
xfs_iext_remove(ip, icur, 1, 0);
xfs_iext_remove(ip, icur, 0);
xfs_iext_prev(XFS_IFORK_PTR(ip, whichfork), icur);
xfs_iext_update_extent(ip, xfs_bmap_fork_to_state(whichfork), icur,
&new);

30
fs/xfs/libxfs/xfs_iext_tree.c
View File

@ -818,15 +818,19 @@ xfs_iext_free_last_leaf(
kmem_free(ifp->if_u1.if_root);
}
static void
__xfs_iext_remove(
struct xfs_ifork *ifp,
struct xfs_iext_cursor *cur)
void
xfs_iext_remove(
struct xfs_inode *ip,
struct xfs_iext_cursor *cur,
int state)
{
struct xfs_ifork *ifp = xfs_iext_state_to_fork(ip, state);
struct xfs_iext_leaf *leaf = cur->leaf;
xfs_fileoff_t offset = xfs_iext_leaf_key(leaf, 0);
int i, nr_entries;
trace_xfs_iext_remove(ip, cur, state, _RET_IP_);
ASSERT(ifp->if_height > 0);
ASSERT(ifp->if_u1.if_root != NULL);
ASSERT(xfs_iext_valid(ifp, cur));
@ -858,24 +862,6 @@ __xfs_iext_remove(
xfs_iext_free_last_leaf(ifp);
}
void
xfs_iext_remove(
struct xfs_inode *ip,
struct xfs_iext_cursor *cur,
int nr_extents,
int state)
{
struct xfs_ifork *ifp = xfs_iext_state_to_fork(ip, state);
int i;
ASSERT(nr_extents > 0);
for (i = 0; i < nr_extents; i++) {
trace_xfs_iext_remove(ip, cur, state, _RET_IP_);
__xfs_iext_remove(ifp, cur);
}
}
/*
* Lookup the extent covering bno.
*

2
fs/xfs/libxfs/xfs_inode_fork.h
View File

@ -116,7 +116,7 @@ xfs_extnum_t xfs_iext_count(struct xfs_ifork *ifp);
void xfs_iext_insert(struct xfs_inode *, struct xfs_iext_cursor *cur,
struct xfs_bmbt_irec *, int);
void xfs_iext_remove(struct xfs_inode *, struct xfs_iext_cursor *,
int, int);
int);
void xfs_iext_destroy(struct xfs_ifork *);
bool xfs_iext_lookup_extent(struct xfs_inode *ip,