From: Darrick J. Wong <djwong@xxxxxxxxxx>
Change the lock_flags parameter to iget_flags so that we can supply
XFS_IGET_ flags in future patches. All callers of libxfs_iget and
libxfs_trans_iget pass zero for this parameter and there are no inode
locks in xfsprogs, so there's no behavior change here.
Port the kernel's version of the xfs_inode_from_disk callsite.
Signed-off-by: Darrick J. Wong <djwong@xxxxxxxxxx>
---
libxfs/inode.c | 40 ++++++++++++++++++++++++++++------------
1 file changed, 28 insertions(+), 12 deletions(-)
diff --git a/libxfs/inode.c b/libxfs/inode.c
index c7843aea753..588aff33ef4 100644
--- a/libxfs/inode.c
+++ b/libxfs/inode.c
@@ -263,11 +263,10 @@ libxfs_iget(
struct xfs_mount *mp,
struct xfs_trans *tp,
xfs_ino_t ino,
- uint lock_flags,
+ uint flags,
struct xfs_inode **ipp)
{
struct xfs_inode *ip;
- struct xfs_buf *bp;
int error = 0;
ip = kmem_cache_zalloc(xfs_inode_cache, 0);
@@ -284,18 +283,35 @@ libxfs_iget(
if (error)
goto out_destroy;
- error = xfs_imap_to_bp(mp, tp, &ip->i_imap, &bp);
- if (error)
- goto out_destroy;
+ /*
+ * For version 5 superblocks, if we are initialising a new inode and we
+ * are not utilising the XFS_MOUNT_IKEEP inode cluster mode, we can
+ * simply build the new inode core with a random generation number.
+ *
+ * For version 4 (and older) superblocks, log recovery is dependent on
+ * the di_flushiter field being initialised from the current on-disk
+ * value and hence we must also read the inode off disk even when
+ * initializing new inodes.
+ */
+ if (xfs_has_v3inodes(mp) &&
+ (flags & XFS_IGET_CREATE) && !xfs_has_ikeep(mp)) {
+ VFS_I(ip)->i_generation = get_random_u32();
+ } else {
+ struct xfs_buf *bp;
- error = xfs_inode_from_disk(ip,
- xfs_buf_offset(bp, ip->i_imap.im_boffset));
- if (!error)
- xfs_buf_set_ref(bp, XFS_INO_REF);
- xfs_trans_brelse(tp, bp);
+ error = xfs_imap_to_bp(mp, tp, &ip->i_imap, &bp);
+ if (error)
+ goto out_destroy;
- if (error)
- goto out_destroy;
+ error = xfs_inode_from_disk(ip,
+ xfs_buf_offset(bp, ip->i_imap.im_boffset));
+ if (!error)
+ xfs_buf_set_ref(bp, XFS_INO_REF);
+ xfs_trans_brelse(tp, bp);
+
+ if (error)
+ goto out_destroy;
+ }
*ipp = ip;
return 0;
