diff options
| author | Christoph Hellwig <hch@lst.de> | 2020-05-18 10:27:22 -0700 |
|---|---|---|
| committer | Darrick J. Wong <darrick.wong@oracle.com> | 2020-05-19 09:40:58 -0700 |
| commit | daf83964a3681cf1f1f255ad6095c0b60cba7dca (patch) | |
| tree | e87b88a211f431fa758d6cbb4d6bbc56f4dde533 /fs/xfs/libxfs/xfs_inode_fork.h | |
| parent | b2c20045b67bf37aa63be9bd9463708dfb38cbcc (diff) | |
xfs: move the per-fork nextents fields into struct xfs_ifork
There are there are three extents counters per inode, one for each of
the forks. Two are in the legacy icdinode and one is directly in
struct xfs_inode. Switch to a single counter in the xfs_ifork structure
where it uses up padding at the end of the structure. This simplifies
various bits of code that just wants the number of extents counter and
can now directly dereference it.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Chandan Babu R <chandanrlinux@gmail.com>
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>
Diffstat (limited to 'fs/xfs/libxfs/xfs_inode_fork.h')
| -rw-r--r-- | fs/xfs/libxfs/xfs_inode_fork.h | 20 |
1 files changed, 8 insertions, 12 deletions
diff --git a/fs/xfs/libxfs/xfs_inode_fork.h b/fs/xfs/libxfs/xfs_inode_fork.h index f46a8c1db596..a69d425fe68d 100644 --- a/fs/xfs/libxfs/xfs_inode_fork.h +++ b/fs/xfs/libxfs/xfs_inode_fork.h @@ -23,6 +23,7 @@ struct xfs_ifork { } if_u1; short if_broot_bytes; /* bytes allocated for root */ unsigned char if_flags; /* per-fork flags */ + xfs_extnum_t if_nextents; /* # of extents in this fork */ }; /* @@ -67,18 +68,6 @@ struct xfs_ifork { ((w) == XFS_ATTR_FORK ? \ ((ip)->i_d.di_aformat = (n)) : \ ((ip)->i_cformat = (n)))) -#define XFS_IFORK_NEXTENTS(ip,w) \ - ((w) == XFS_DATA_FORK ? \ - (ip)->i_d.di_nextents : \ - ((w) == XFS_ATTR_FORK ? \ - (ip)->i_d.di_anextents : \ - (ip)->i_cnextents)) -#define XFS_IFORK_NEXT_SET(ip,w,n) \ - ((w) == XFS_DATA_FORK ? \ - ((ip)->i_d.di_nextents = (n)) : \ - ((w) == XFS_ATTR_FORK ? \ - ((ip)->i_d.di_anextents = (n)) : \ - ((ip)->i_cnextents = (n)))) #define XFS_IFORK_MAXEXT(ip, w) \ (XFS_IFORK_SIZE(ip, w) / sizeof(xfs_bmbt_rec_t)) @@ -86,6 +75,13 @@ struct xfs_ifork { (XFS_IFORK_FORMAT((ip), (w)) == XFS_DINODE_FMT_EXTENTS || \ XFS_IFORK_FORMAT((ip), (w)) == XFS_DINODE_FMT_BTREE) +static inline xfs_extnum_t xfs_ifork_nextents(struct xfs_ifork *ifp) +{ + if (!ifp) + return 0; + return ifp->if_nextents; +} + struct xfs_ifork *xfs_iext_state_to_fork(struct xfs_inode *ip, int state); int xfs_iformat_data_fork(struct xfs_inode *, struct xfs_dinode *); |