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xfs: move various type verifiers to common file

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New verification functions like xfs_verify_fsbno() and
xfs_verify_agino() are spread across multiple files and different
header files. They really don't fit cleanly into the places they've
been put, and have wider scope than the current header includes.

Move the type verifiers to a new file in libxfs (xfs-types.c) and
the prototypes to xfs_types.h where they will be visible to all the
code that uses the types.

Signed-Off-By: Dave Chinner <dchinner@redhat.com>
Reviewed-by: Brian Foster <bfoster@redhat.com>
Reviewed-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:
Dave Chinner
2018-06-07 07:53:33 -07:00
committed by Darrick J. Wong
parent 4a2d01b076
commit 86210fbeba
9 changed files with 194 additions and 163 deletions
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90
fs/xfs/libxfs/xfs_ialloc.c
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@@ -2674,96 +2674,6 @@ xfs_ialloc_pagi_init(
return 0;
}
/* Calculate the first and last possible inode number in an AG. */
void
xfs_ialloc_agino_range(
struct xfs_mount *mp,
xfs_agnumber_t agno,
xfs_agino_t *first,
xfs_agino_t *last)
{
xfs_agblock_t bno;
xfs_agblock_t eoag;
eoag = xfs_ag_block_count(mp, agno);
/*
* Calculate the first inode, which will be in the first
* cluster-aligned block after the AGFL.
*/
bno = round_up(XFS_AGFL_BLOCK(mp) + 1,
xfs_ialloc_cluster_alignment(mp));
*first = XFS_OFFBNO_TO_AGINO(mp, bno, 0);
/*
* Calculate the last inode, which will be at the end of the
* last (aligned) cluster that can be allocated in the AG.
*/
bno = round_down(eoag, xfs_ialloc_cluster_alignment(mp));
*last = XFS_OFFBNO_TO_AGINO(mp, bno, 0) - 1;
}
/*
* Verify that an AG inode number pointer neither points outside the AG
* nor points at static metadata.
*/
bool
xfs_verify_agino(
struct xfs_mount *mp,
xfs_agnumber_t agno,
xfs_agino_t agino)
{
xfs_agino_t first;
xfs_agino_t last;
xfs_ialloc_agino_range(mp, agno, &first, &last);
return agino >= first && agino <= last;
}
/*
* Verify that an FS inode number pointer neither points outside the
* filesystem nor points at static AG metadata.
*/
bool
xfs_verify_ino(
struct xfs_mount *mp,
xfs_ino_t ino)
{
xfs_agnumber_t agno = XFS_INO_TO_AGNO(mp, ino);
xfs_agino_t agino = XFS_INO_TO_AGINO(mp, ino);
if (agno >= mp->m_sb.sb_agcount)
return false;
if (XFS_AGINO_TO_INO(mp, agno, agino) != ino)
return false;
return xfs_verify_agino(mp, agno, agino);
}
/* Is this an internal inode number? */
bool
xfs_internal_inum(
struct xfs_mount *mp,
xfs_ino_t ino)
{
return ino == mp->m_sb.sb_rbmino || ino == mp->m_sb.sb_rsumino ||
(xfs_sb_version_hasquota(&mp->m_sb) &&
xfs_is_quota_inode(&mp->m_sb, ino));
}
/*
* Verify that a directory entry's inode number doesn't point at an internal
* inode, empty space, or static AG metadata.
*/
bool
xfs_verify_dir_ino(
struct xfs_mount *mp,
xfs_ino_t ino)
{
if (xfs_internal_inum(mp, ino))
return false;
return xfs_verify_ino(mp, ino);
}
/* Is there an inode record covering a given range of inode numbers? */
int
xfs_ialloc_has_inode_record(