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path: root/fs/xfs/libxfs/xfs_ialloc.c
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Diffstat (limited to 'fs/xfs/libxfs/xfs_ialloc.c')
-rw-r--r--fs/xfs/libxfs/xfs_ialloc.c181
1 files changed, 150 insertions, 31 deletions
diff --git a/fs/xfs/libxfs/xfs_ialloc.c b/fs/xfs/libxfs/xfs_ialloc.c
index 588d44613094..5b759af4d165 100644
--- a/fs/xfs/libxfs/xfs_ialloc.c
+++ b/fs/xfs/libxfs/xfs_ialloc.c
@@ -544,7 +544,10 @@ xfs_inobt_insert_sprec(
nrec->ir_free, &i);
if (error)
goto error;
- XFS_WANT_CORRUPTED_GOTO(mp, i == 1, error);
+ if (XFS_IS_CORRUPT(mp, i != 1)) {
+ error = -EFSCORRUPTED;
+ goto error;
+ }
goto out;
}
@@ -557,17 +560,23 @@ xfs_inobt_insert_sprec(
error = xfs_inobt_get_rec(cur, &rec, &i);
if (error)
goto error;
- XFS_WANT_CORRUPTED_GOTO(mp, i == 1, error);
- XFS_WANT_CORRUPTED_GOTO(mp,
- rec.ir_startino == nrec->ir_startino,
- error);
+ if (XFS_IS_CORRUPT(mp, i != 1)) {
+ error = -EFSCORRUPTED;
+ goto error;
+ }
+ if (XFS_IS_CORRUPT(mp, rec.ir_startino != nrec->ir_startino)) {
+ error = -EFSCORRUPTED;
+ goto error;
+ }
/*
* This should never fail. If we have coexisting records that
* cannot merge, something is seriously wrong.
*/
- XFS_WANT_CORRUPTED_GOTO(mp, __xfs_inobt_can_merge(nrec, &rec),
- error);
+ if (XFS_IS_CORRUPT(mp, !__xfs_inobt_can_merge(nrec, &rec))) {
+ error = -EFSCORRUPTED;
+ goto error;
+ }
trace_xfs_irec_merge_pre(mp, agno, rec.ir_startino,
rec.ir_holemask, nrec->ir_startino,
@@ -1057,7 +1066,8 @@ xfs_ialloc_next_rec(
error = xfs_inobt_get_rec(cur, rec, &i);
if (error)
return error;
- XFS_WANT_CORRUPTED_RETURN(cur->bc_mp, i == 1);
+ if (XFS_IS_CORRUPT(cur->bc_mp, i != 1))
+ return -EFSCORRUPTED;
}
return 0;
@@ -1081,7 +1091,8 @@ xfs_ialloc_get_rec(
error = xfs_inobt_get_rec(cur, rec, &i);
if (error)
return error;
- XFS_WANT_CORRUPTED_RETURN(cur->bc_mp, i == 1);
+ if (XFS_IS_CORRUPT(cur->bc_mp, i != 1))
+ return -EFSCORRUPTED;
}
return 0;
@@ -1161,12 +1172,18 @@ xfs_dialloc_ag_inobt(
error = xfs_inobt_lookup(cur, pagino, XFS_LOOKUP_LE, &i);
if (error)
goto error0;
- XFS_WANT_CORRUPTED_GOTO(mp, i == 1, error0);
+ if (XFS_IS_CORRUPT(mp, i != 1)) {
+ error = -EFSCORRUPTED;
+ goto error0;
+ }
error = xfs_inobt_get_rec(cur, &rec, &j);
if (error)
goto error0;
- XFS_WANT_CORRUPTED_GOTO(mp, j == 1, error0);
+ if (XFS_IS_CORRUPT(mp, j != 1)) {
+ error = -EFSCORRUPTED;
+ goto error0;
+ }
if (rec.ir_freecount > 0) {
/*
@@ -1321,19 +1338,28 @@ xfs_dialloc_ag_inobt(
error = xfs_inobt_lookup(cur, 0, XFS_LOOKUP_GE, &i);
if (error)
goto error0;
- XFS_WANT_CORRUPTED_GOTO(mp, i == 1, error0);
+ if (XFS_IS_CORRUPT(mp, i != 1)) {
+ error = -EFSCORRUPTED;
+ goto error0;
+ }
for (;;) {
error = xfs_inobt_get_rec(cur, &rec, &i);
if (error)
goto error0;
- XFS_WANT_CORRUPTED_GOTO(mp, i == 1, error0);
+ if (XFS_IS_CORRUPT(mp, i != 1)) {
+ error = -EFSCORRUPTED;
+ goto error0;
+ }
if (rec.ir_freecount > 0)
break;
error = xfs_btree_increment(cur, 0, &i);
if (error)
goto error0;
- XFS_WANT_CORRUPTED_GOTO(mp, i == 1, error0);
+ if (XFS_IS_CORRUPT(mp, i != 1)) {
+ error = -EFSCORRUPTED;
+ goto error0;
+ }
}
alloc_inode:
@@ -1393,7 +1419,8 @@ xfs_dialloc_ag_finobt_near(
error = xfs_inobt_get_rec(lcur, rec, &i);
if (error)
return error;
- XFS_WANT_CORRUPTED_RETURN(lcur->bc_mp, i == 1);
+ if (XFS_IS_CORRUPT(lcur->bc_mp, i != 1))
+ return -EFSCORRUPTED;
/*
* See if we've landed in the parent inode record. The finobt
@@ -1416,10 +1443,16 @@ xfs_dialloc_ag_finobt_near(
error = xfs_inobt_get_rec(rcur, &rrec, &j);
if (error)
goto error_rcur;
- XFS_WANT_CORRUPTED_GOTO(lcur->bc_mp, j == 1, error_rcur);
+ if (XFS_IS_CORRUPT(lcur->bc_mp, j != 1)) {
+ error = -EFSCORRUPTED;
+ goto error_rcur;
+ }
}
- XFS_WANT_CORRUPTED_GOTO(lcur->bc_mp, i == 1 || j == 1, error_rcur);
+ if (XFS_IS_CORRUPT(lcur->bc_mp, i != 1 && j != 1)) {
+ error = -EFSCORRUPTED;
+ goto error_rcur;
+ }
if (i == 1 && j == 1) {
/*
* Both the left and right records are valid. Choose the closer
@@ -1472,7 +1505,8 @@ xfs_dialloc_ag_finobt_newino(
error = xfs_inobt_get_rec(cur, rec, &i);
if (error)
return error;
- XFS_WANT_CORRUPTED_RETURN(cur->bc_mp, i == 1);
+ if (XFS_IS_CORRUPT(cur->bc_mp, i != 1))
+ return -EFSCORRUPTED;
return 0;
}
}
@@ -1483,12 +1517,14 @@ xfs_dialloc_ag_finobt_newino(
error = xfs_inobt_lookup(cur, 0, XFS_LOOKUP_GE, &i);
if (error)
return error;
- XFS_WANT_CORRUPTED_RETURN(cur->bc_mp, i == 1);
+ if (XFS_IS_CORRUPT(cur->bc_mp, i != 1))
+ return -EFSCORRUPTED;
error = xfs_inobt_get_rec(cur, rec, &i);
if (error)
return error;
- XFS_WANT_CORRUPTED_RETURN(cur->bc_mp, i == 1);
+ if (XFS_IS_CORRUPT(cur->bc_mp, i != 1))
+ return -EFSCORRUPTED;
return 0;
}
@@ -1510,20 +1546,24 @@ xfs_dialloc_ag_update_inobt(
error = xfs_inobt_lookup(cur, frec->ir_startino, XFS_LOOKUP_EQ, &i);
if (error)
return error;
- XFS_WANT_CORRUPTED_RETURN(cur->bc_mp, i == 1);
+ if (XFS_IS_CORRUPT(cur->bc_mp, i != 1))
+ return -EFSCORRUPTED;
error = xfs_inobt_get_rec(cur, &rec, &i);
if (error)
return error;
- XFS_WANT_CORRUPTED_RETURN(cur->bc_mp, i == 1);
+ if (XFS_IS_CORRUPT(cur->bc_mp, i != 1))
+ return -EFSCORRUPTED;
ASSERT((XFS_AGINO_TO_OFFSET(cur->bc_mp, rec.ir_startino) %
XFS_INODES_PER_CHUNK) == 0);
rec.ir_free &= ~XFS_INOBT_MASK(offset);
rec.ir_freecount--;
- XFS_WANT_CORRUPTED_RETURN(cur->bc_mp, (rec.ir_free == frec->ir_free) &&
- (rec.ir_freecount == frec->ir_freecount));
+ if (XFS_IS_CORRUPT(cur->bc_mp,
+ rec.ir_free != frec->ir_free ||
+ rec.ir_freecount != frec->ir_freecount))
+ return -EFSCORRUPTED;
return xfs_inobt_update(cur, &rec);
}
@@ -1933,14 +1973,20 @@ xfs_difree_inobt(
__func__, error);
goto error0;
}
- XFS_WANT_CORRUPTED_GOTO(mp, i == 1, error0);
+ if (XFS_IS_CORRUPT(mp, i != 1)) {
+ error = -EFSCORRUPTED;
+ goto error0;
+ }
error = xfs_inobt_get_rec(cur, &rec, &i);
if (error) {
xfs_warn(mp, "%s: xfs_inobt_get_rec() returned error %d.",
__func__, error);
goto error0;
}
- XFS_WANT_CORRUPTED_GOTO(mp, i == 1, error0);
+ if (XFS_IS_CORRUPT(mp, i != 1)) {
+ error = -EFSCORRUPTED;
+ goto error0;
+ }
/*
* Get the offset in the inode chunk.
*/
@@ -2052,7 +2098,10 @@ xfs_difree_finobt(
* freed an inode in a previously fully allocated chunk. If not,
* something is out of sync.
*/
- XFS_WANT_CORRUPTED_GOTO(mp, ibtrec->ir_freecount == 1, error);
+ if (XFS_IS_CORRUPT(mp, ibtrec->ir_freecount != 1)) {
+ error = -EFSCORRUPTED;
+ goto error;
+ }
error = xfs_inobt_insert_rec(cur, ibtrec->ir_holemask,
ibtrec->ir_count,
@@ -2075,14 +2124,20 @@ xfs_difree_finobt(
error = xfs_inobt_get_rec(cur, &rec, &i);
if (error)
goto error;
- XFS_WANT_CORRUPTED_GOTO(mp, i == 1, error);
+ if (XFS_IS_CORRUPT(mp, i != 1)) {
+ error = -EFSCORRUPTED;
+ goto error;
+ }
rec.ir_free |= XFS_INOBT_MASK(offset);
rec.ir_freecount++;
- XFS_WANT_CORRUPTED_GOTO(mp, (rec.ir_free == ibtrec->ir_free) &&
- (rec.ir_freecount == ibtrec->ir_freecount),
- error);
+ if (XFS_IS_CORRUPT(mp,
+ rec.ir_free != ibtrec->ir_free ||
+ rec.ir_freecount != ibtrec->ir_freecount)) {
+ error = -EFSCORRUPTED;
+ goto error;
+ }
/*
* The content of inobt records should always match between the inobt
@@ -2854,3 +2909,67 @@ xfs_ialloc_setup_geometry(
else
igeo->ialloc_align = 0;
}
+
+/* Compute the location of the root directory inode that is laid out by mkfs. */
+xfs_ino_t
+xfs_ialloc_calc_rootino(
+ struct xfs_mount *mp,
+ int sunit)
+{
+ struct xfs_ino_geometry *igeo = M_IGEO(mp);
+ xfs_agblock_t first_bno;
+
+ /*
+ * Pre-calculate the geometry of AG 0. We know what it looks like
+ * because libxfs knows how to create allocation groups now.
+ *
+ * first_bno is the first block in which mkfs could possibly have
+ * allocated the root directory inode, once we factor in the metadata
+ * that mkfs formats before it. Namely, the four AG headers...
+ */
+ first_bno = howmany(4 * mp->m_sb.sb_sectsize, mp->m_sb.sb_blocksize);
+
+ /* ...the two free space btree roots... */
+ first_bno += 2;
+
+ /* ...the inode btree root... */
+ first_bno += 1;
+
+ /* ...the initial AGFL... */
+ first_bno += xfs_alloc_min_freelist(mp, NULL);
+
+ /* ...the free inode btree root... */
+ if (xfs_sb_version_hasfinobt(&mp->m_sb))
+ first_bno++;
+
+ /* ...the reverse mapping btree root... */
+ if (xfs_sb_version_hasrmapbt(&mp->m_sb))
+ first_bno++;
+
+ /* ...the reference count btree... */
+ if (xfs_sb_version_hasreflink(&mp->m_sb))
+ first_bno++;
+
+ /*
+ * ...and the log, if it is allocated in the first allocation group.
+ *
+ * This can happen with filesystems that only have a single
+ * allocation group, or very odd geometries created by old mkfs
+ * versions on very small filesystems.
+ */
+ if (mp->m_sb.sb_logstart &&
+ XFS_FSB_TO_AGNO(mp, mp->m_sb.sb_logstart) == 0)
+ first_bno += mp->m_sb.sb_logblocks;
+
+ /*
+ * Now round first_bno up to whatever allocation alignment is given
+ * by the filesystem or was passed in.
+ */
+ if (xfs_sb_version_hasdalign(&mp->m_sb) && igeo->ialloc_align > 0)
+ first_bno = roundup(first_bno, sunit);
+ else if (xfs_sb_version_hasalign(&mp->m_sb) &&
+ mp->m_sb.sb_inoalignmt > 1)
+ first_bno = roundup(first_bno, mp->m_sb.sb_inoalignmt);
+
+ return XFS_AGINO_TO_INO(mp, 0, XFS_AGB_TO_AGINO(mp, first_bno));
+}
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