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xfs: pass a struct xfs_bmbt_irec to xfs_bmbt_lookup_eq 

Now that we've massaged the callers into the right form we can always
pass the actual extent record instead of the individual fields.

As an additional benefit the btree cursor will now be prepoulated with
the correct extent state instead of having to fix it up later.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Brian Foster <bfoster@redhat.com>
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 2017-10-17 14:16:26 -07:00 committed by Darrick J. Wong
parent a67d00a555
commit e16cf9b03c
1 changed files with 39 additions and 106 deletions
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145
fs/xfs/libxfs/xfs_bmap.c
View File

@ -112,14 +112,10 @@ xfs_bmap_compute_maxlevels(
STATIC int /* error */
xfs_bmbt_lookup_eq(
struct xfs_btree_cur *cur,
xfs_fileoff_t off,
xfs_fsblock_t bno,
xfs_filblks_t len,
struct xfs_bmbt_irec *irec,
int *stat) /* success/failure */
{
cur->bc_rec.b.br_startoff = off;
cur->bc_rec.b.br_startblock = bno;
cur->bc_rec.b.br_blockcount = len;
cur->bc_rec.b = *irec;
return xfs_btree_lookup(cur, XFS_LOOKUP_EQ, stat);
}
@ -1697,9 +1693,7 @@ xfs_bmap_add_extent_delay_real(
rval = XFS_ILOG_CORE | XFS_ILOG_DEXT;
else {
rval = XFS_ILOG_CORE;
error = xfs_bmbt_lookup_eq(bma->cur, RIGHT.br_startoff,
RIGHT.br_startblock,
RIGHT.br_blockcount, &i);
error = xfs_bmbt_lookup_eq(bma->cur, &RIGHT, &i);
if (error)
goto done;
XFS_WANT_CORRUPTED_GOTO(mp, i == 1, done);
@ -1735,9 +1729,7 @@ xfs_bmap_add_extent_delay_real(
rval = XFS_ILOG_DEXT;
else {
rval = 0;
error = xfs_bmbt_lookup_eq(bma->cur, old.br_startoff,
old.br_startblock, old.br_blockcount,
&i);
error = xfs_bmbt_lookup_eq(bma->cur, &old, &i);
if (error)
goto done;
XFS_WANT_CORRUPTED_GOTO(mp, i == 1, done);
@ -1763,9 +1755,7 @@ xfs_bmap_add_extent_delay_real(
rval = XFS_ILOG_DEXT;
else {
rval = 0;
error = xfs_bmbt_lookup_eq(bma->cur, RIGHT.br_startoff,
RIGHT.br_startblock,
RIGHT.br_blockcount, &i);
error = xfs_bmbt_lookup_eq(bma->cur, &RIGHT, &i);
if (error)
goto done;
XFS_WANT_CORRUPTED_GOTO(mp, i == 1, done);
@ -1792,13 +1782,10 @@ xfs_bmap_add_extent_delay_real(
rval = XFS_ILOG_CORE | XFS_ILOG_DEXT;
else {
rval = XFS_ILOG_CORE;
error = xfs_bmbt_lookup_eq(bma->cur, new->br_startoff,
new->br_startblock, new->br_blockcount,
&i);
error = xfs_bmbt_lookup_eq(bma->cur, new, &i);
if (error)
goto done;
XFS_WANT_CORRUPTED_GOTO(mp, i == 0, done);
bma->cur->bc_rec.b.br_state = XFS_EXT_NORM;
error = xfs_btree_insert(bma->cur, &i);
if (error)
goto done;
@ -1832,9 +1819,7 @@ xfs_bmap_add_extent_delay_real(
rval = XFS_ILOG_DEXT;
else {
rval = 0;
error = xfs_bmbt_lookup_eq(bma->cur, old.br_startoff,
old.br_startblock, old.br_blockcount,
&i);
error = xfs_bmbt_lookup_eq(bma->cur, &old, &i);
if (error)
goto done;
XFS_WANT_CORRUPTED_GOTO(mp, i == 1, done);
@ -1857,13 +1842,10 @@ xfs_bmap_add_extent_delay_real(
rval = XFS_ILOG_CORE | XFS_ILOG_DEXT;
else {
rval = XFS_ILOG_CORE;
error = xfs_bmbt_lookup_eq(bma->cur, new->br_startoff,
new->br_startblock, new->br_blockcount,
&i);
error = xfs_bmbt_lookup_eq(bma->cur, new, &i);
if (error)
goto done;
XFS_WANT_CORRUPTED_GOTO(mp, i == 0, done);
bma->cur->bc_rec.b.br_state = XFS_EXT_NORM;
error = xfs_btree_insert(bma->cur, &i);
if (error)
goto done;
@ -1910,9 +1892,7 @@ xfs_bmap_add_extent_delay_real(
rval = XFS_ILOG_DEXT;
else {
rval = 0;
error = xfs_bmbt_lookup_eq(bma->cur, old.br_startoff,
old.br_startblock,
old.br_blockcount, &i);
error = xfs_bmbt_lookup_eq(bma->cur, &old, &i);
if (error)
goto done;
XFS_WANT_CORRUPTED_GOTO(mp, i == 1, done);
@ -1945,13 +1925,10 @@ xfs_bmap_add_extent_delay_real(
rval = XFS_ILOG_CORE | XFS_ILOG_DEXT;
else {
rval = XFS_ILOG_CORE;
error = xfs_bmbt_lookup_eq(bma->cur, new->br_startoff,
new->br_startblock, new->br_blockcount,
&i);
error = xfs_bmbt_lookup_eq(bma->cur, new, &i);
if (error)
goto done;
XFS_WANT_CORRUPTED_GOTO(mp, i == 0, done);
bma->cur->bc_rec.b.br_state = XFS_EXT_NORM;
error = xfs_btree_insert(bma->cur, &i);
if (error)
goto done;
@ -2033,13 +2010,10 @@ xfs_bmap_add_extent_delay_real(
rval = XFS_ILOG_CORE | XFS_ILOG_DEXT;
else {
rval = XFS_ILOG_CORE;
error = xfs_bmbt_lookup_eq(bma->cur, new->br_startoff,
new->br_startblock, new->br_blockcount,
&i);
error = xfs_bmbt_lookup_eq(bma->cur, new, &i);
if (error)
goto done;
XFS_WANT_CORRUPTED_GOTO(mp, i == 0, done);
bma->cur->bc_rec.b.br_state = XFS_EXT_NORM;
error = xfs_btree_insert(bma->cur, &i);
if (error)
goto done;
@ -2245,9 +2219,8 @@ xfs_bmap_add_extent_unwritten_real(
rval = XFS_ILOG_CORE | XFS_ILOG_DEXT;
else {
rval = XFS_ILOG_CORE;
if ((error = xfs_bmbt_lookup_eq(cur, RIGHT.br_startoff,
RIGHT.br_startblock,
RIGHT.br_blockcount, &i)))
error = xfs_bmbt_lookup_eq(cur, &RIGHT, &i);
if (error)
goto done;
XFS_WANT_CORRUPTED_GOTO(mp, i == 1, done);
if ((error = xfs_btree_delete(cur, &i)))
@ -2287,9 +2260,8 @@ xfs_bmap_add_extent_unwritten_real(
rval = XFS_ILOG_CORE | XFS_ILOG_DEXT;
else {
rval = XFS_ILOG_CORE;
if ((error = xfs_bmbt_lookup_eq(cur, PREV.br_startoff,
PREV.br_startblock, PREV.br_blockcount,
&i)))
error = xfs_bmbt_lookup_eq(cur, &PREV, &i);
if (error)
goto done;
XFS_WANT_CORRUPTED_GOTO(mp, i == 1, done);
if ((error = xfs_btree_delete(cur, &i)))
@ -2322,9 +2294,8 @@ xfs_bmap_add_extent_unwritten_real(
rval = XFS_ILOG_CORE | XFS_ILOG_DEXT;
else {
rval = XFS_ILOG_CORE;
if ((error = xfs_bmbt_lookup_eq(cur, RIGHT.br_startoff,
RIGHT.br_startblock,
RIGHT.br_blockcount, &i)))
error = xfs_bmbt_lookup_eq(cur, &RIGHT, &i);
if (error)
goto done;
XFS_WANT_CORRUPTED_GOTO(mp, i == 1, done);
if ((error = xfs_btree_delete(cur, &i)))
@ -2354,9 +2325,8 @@ xfs_bmap_add_extent_unwritten_real(
rval = XFS_ILOG_DEXT;
else {
rval = 0;
if ((error = xfs_bmbt_lookup_eq(cur, new->br_startoff,
new->br_startblock, new->br_blockcount,
&i)))
error = xfs_bmbt_lookup_eq(cur, new, &i);
if (error)
goto done;
XFS_WANT_CORRUPTED_GOTO(mp, i == 1, done);
error = xfs_bmbt_update(cur, &PREV);
@ -2389,9 +2359,7 @@ xfs_bmap_add_extent_unwritten_real(
rval = XFS_ILOG_DEXT;
else {
rval = 0;
error = xfs_bmbt_lookup_eq(cur, old.br_startoff,
old.br_startblock, old.br_blockcount,
&i);
error = xfs_bmbt_lookup_eq(cur, &old, &i);
if (error)
goto done;
XFS_WANT_CORRUPTED_GOTO(mp, i == 1, done);
@ -2427,9 +2395,7 @@ xfs_bmap_add_extent_unwritten_real(
rval = XFS_ILOG_CORE | XFS_ILOG_DEXT;
else {
rval = XFS_ILOG_CORE;
error = xfs_bmbt_lookup_eq(cur, old.br_startoff,
old.br_startblock, old.br_blockcount,
&i);
error = xfs_bmbt_lookup_eq(cur, &old, &i);
if (error)
goto done;
XFS_WANT_CORRUPTED_GOTO(mp, i == 1, done);
@ -2467,9 +2433,7 @@ xfs_bmap_add_extent_unwritten_real(
rval = XFS_ILOG_DEXT;
else {
rval = 0;
error = xfs_bmbt_lookup_eq(cur, old.br_startoff,
old.br_startblock, old.br_blockcount,
&i);
error = xfs_bmbt_lookup_eq(cur, &old, &i);
if (error)
goto done;
XFS_WANT_CORRUPTED_GOTO(mp, i == 1, done);
@ -2505,21 +2469,17 @@ xfs_bmap_add_extent_unwritten_real(
rval = XFS_ILOG_CORE | XFS_ILOG_DEXT;
else {
rval = XFS_ILOG_CORE;
error = xfs_bmbt_lookup_eq(cur, old.br_startoff,
old.br_startblock, old.br_blockcount,
&i);
error = xfs_bmbt_lookup_eq(cur, &old, &i);
if (error)
goto done;
XFS_WANT_CORRUPTED_GOTO(mp, i == 1, done);
error = xfs_bmbt_update(cur, &PREV);
if (error)
goto done;
if ((error = xfs_bmbt_lookup_eq(cur, new->br_startoff,
new->br_startblock, new->br_blockcount,
&i)))
error = xfs_bmbt_lookup_eq(cur, new, &i);
if (error)
goto done;
XFS_WANT_CORRUPTED_GOTO(mp, i == 0, done);
cur->bc_rec.b.br_state = new->br_state;
if ((error = xfs_btree_insert(cur, &i)))
goto done;
XFS_WANT_CORRUPTED_GOTO(mp, i == 1, done);
@ -2554,9 +2514,7 @@ xfs_bmap_add_extent_unwritten_real(
rval = XFS_ILOG_CORE | XFS_ILOG_DEXT;
else {
rval = XFS_ILOG_CORE;
error = xfs_bmbt_lookup_eq(cur, old.br_startoff,
old.br_startblock, old.br_blockcount,
&i);
error = xfs_bmbt_lookup_eq(cur, &old, &i);
if (error)
goto done;
XFS_WANT_CORRUPTED_GOTO(mp, i == 1, done);
@ -2574,13 +2532,11 @@ xfs_bmap_add_extent_unwritten_real(
* we are about to insert as we can't trust it after
* the previous insert.
*/
if ((error = xfs_bmbt_lookup_eq(cur, new->br_startoff,
new->br_startblock, new->br_blockcount,
&i)))
error = xfs_bmbt_lookup_eq(cur, new, &i);
if (error)
goto done;
XFS_WANT_CORRUPTED_GOTO(mp, i == 0, done);
/* new middle extent - newext */
cur->bc_rec.b.br_state = new->br_state;
if ((error = xfs_btree_insert(cur, &i)))
goto done;
XFS_WANT_CORRUPTED_GOTO(mp, i == 1, done);
@ -2889,9 +2845,7 @@ xfs_bmap_add_extent_hole_real(
rval = XFS_ILOG_CORE | xfs_ilog_fext(whichfork);
} else {
rval = XFS_ILOG_CORE;
error = xfs_bmbt_lookup_eq(cur, right.br_startoff,
right.br_startblock, right.br_blockcount,
&i);
error = xfs_bmbt_lookup_eq(cur, &right, &i);
if (error)
goto done;
XFS_WANT_CORRUPTED_GOTO(mp, i == 1, done);
@ -2926,9 +2880,7 @@ xfs_bmap_add_extent_hole_real(
rval = xfs_ilog_fext(whichfork);
} else {
rval = 0;
error = xfs_bmbt_lookup_eq(cur, old.br_startoff,
old.br_startblock, old.br_blockcount,
&i);
error = xfs_bmbt_lookup_eq(cur, &old, &i);
if (error)
goto done;
XFS_WANT_CORRUPTED_GOTO(mp, i == 1, done);
@ -2956,9 +2908,7 @@ xfs_bmap_add_extent_hole_real(
rval = xfs_ilog_fext(whichfork);
} else {
rval = 0;
error = xfs_bmbt_lookup_eq(cur, old.br_startoff,
old.br_startblock, old.br_blockcount,
&i);
error = xfs_bmbt_lookup_eq(cur, &old, &i);
if (error)
goto done;
XFS_WANT_CORRUPTED_GOTO(mp, i == 1, done);
@ -2981,14 +2931,10 @@ xfs_bmap_add_extent_hole_real(
rval = XFS_ILOG_CORE | xfs_ilog_fext(whichfork);
} else {
rval = XFS_ILOG_CORE;
error = xfs_bmbt_lookup_eq(cur,
new->br_startoff,
new->br_startblock,
new->br_blockcount, &i);
error = xfs_bmbt_lookup_eq(cur, new, &i);
if (error)
goto done;
XFS_WANT_CORRUPTED_GOTO(mp, i == 0, done);
cur->bc_rec.b.br_state = new->br_state;
error = xfs_btree_insert(cur, &i);
if (error)
goto done;
@ -5099,8 +5045,7 @@ xfs_bmap_del_extent_real(
del_endblock = del->br_startblock + del->br_blockcount;
if (cur) {
error = xfs_bmbt_lookup_eq(cur, got.br_startoff,
got.br_startblock, got.br_blockcount, &i);
error = xfs_bmbt_lookup_eq(cur, &got, &i);
if (error)
goto done;
XFS_WANT_CORRUPTED_GOTO(mp, i == 1, done);
@ -5203,9 +5148,7 @@ xfs_bmap_del_extent_real(
* Reset the cursor, don't trust it after any
* insert operation.
*/
error = xfs_bmbt_lookup_eq(cur, got.br_startoff,
got.br_startblock,
got.br_blockcount, &i);
error = xfs_bmbt_lookup_eq(cur, &got, &i);
if (error)
goto done;
XFS_WANT_CORRUPTED_GOTO(mp, i == 1, done);
@ -5733,8 +5676,7 @@ xfs_bmse_merge(
}
/* lookup and remove the extent to merge */
error = xfs_bmbt_lookup_eq(cur, got->br_startoff, got->br_startblock,
got->br_blockcount, &i);
error = xfs_bmbt_lookup_eq(cur, got, &i);
if (error)
return error;
XFS_WANT_CORRUPTED_RETURN(mp, i == 1);
@ -5745,8 +5687,7 @@ xfs_bmse_merge(
XFS_WANT_CORRUPTED_RETURN(mp, i == 1);
/* lookup and update size of the previous extent */
error = xfs_bmbt_lookup_eq(cur, left->br_startoff, left->br_startblock,
left->br_blockcount, &i);
error = xfs_bmbt_lookup_eq(cur, left, &i);
if (error)
return error;
XFS_WANT_CORRUPTED_RETURN(mp, i == 1);
@ -5862,8 +5803,7 @@ update_current_ext:
new.br_startoff = startoff;
if (cur) {
error = xfs_bmbt_lookup_eq(cur, got->br_startoff,
got->br_startblock, got->br_blockcount, &i);
error = xfs_bmbt_lookup_eq(cur, got, &i);
if (error)
return error;
XFS_WANT_CORRUPTED_RETURN(mp, i == 1);
@ -6115,10 +6055,7 @@ xfs_bmap_split_extent_at(
cur->bc_private.b.firstblock = *firstfsb;
cur->bc_private.b.dfops = dfops;
cur->bc_private.b.flags = 0;
error = xfs_bmbt_lookup_eq(cur, got.br_startoff,
got.br_startblock,
got.br_blockcount,
&i);
error = xfs_bmbt_lookup_eq(cur, &got, &i);
if (error)
goto del_cursor;
XFS_WANT_CORRUPTED_GOTO(mp, i == 1, del_cursor);
@ -6142,14 +6079,10 @@ xfs_bmap_split_extent_at(
XFS_IFORK_NEXTENTS(ip, whichfork) + 1);
if (cur) {
error = xfs_bmbt_lookup_eq(cur, new.br_startoff,
new.br_startblock, new.br_blockcount,
&i);
error = xfs_bmbt_lookup_eq(cur, &new, &i);
if (error)
goto del_cursor;
XFS_WANT_CORRUPTED_GOTO(mp, i == 0, del_cursor);
cur->bc_rec.b.br_state = new.br_state;
error = xfs_btree_insert(cur, &i);
if (error)
goto del_cursor;