diff options
| author | Chandan Babu R <chandan.babu@oracle.com> | 2020-08-27 15:09:10 +0530 |
|---|---|---|
| committer | Chandan Babu R <chandan.babu@oracle.com> | 2022-04-11 04:11:17 +0000 |
| commit | 9feb8f19665c8ba051c6a81aa7897149e7748e1e (patch) | |
| tree | 501f071896209b1c464e49d69a1f42f940b6f16b /fs/xfs/libxfs | |
| parent | 95f0b95e2b686ceaa3f465e9fa079f22e0fe7665 (diff) | |
xfs: Introduce xfs_iext_max_nextents() helper
xfs_iext_max_nextents() returns the maximum number of extents possible for one
of data, cow or attribute fork. This helper will be extended further in a
future commit when maximum extent counts associated with data/attribute forks
are increased.
Reviewed-by: Darrick J. Wong <djwong@kernel.org>
Reviewed-by: Dave Chinner <dchinner@redhat.com>
Signed-off-by: Chandan Babu R <chandan.babu@oracle.com>
Diffstat (limited to 'fs/xfs/libxfs')
| -rw-r--r-- | fs/xfs/libxfs/xfs_bmap.c | 9 | ||||
| -rw-r--r-- | fs/xfs/libxfs/xfs_inode_buf.c | 8 | ||||
| -rw-r--r-- | fs/xfs/libxfs/xfs_inode_fork.c | 2 | ||||
| -rw-r--r-- | fs/xfs/libxfs/xfs_inode_fork.h | 8 |
4 files changed, 16 insertions, 11 deletions
diff --git a/fs/xfs/libxfs/xfs_bmap.c b/fs/xfs/libxfs/xfs_bmap.c index 00b8e6e1c404..a713bc7242a4 100644 --- a/fs/xfs/libxfs/xfs_bmap.c +++ b/fs/xfs/libxfs/xfs_bmap.c @@ -74,13 +74,12 @@ xfs_bmap_compute_maxlevels( * ATTR2 we have to assume the worst case scenario of a minimum size * available. */ - if (whichfork == XFS_DATA_FORK) { - maxleafents = MAXEXTNUM; + maxleafents = xfs_iext_max_nextents(whichfork); + if (whichfork == XFS_DATA_FORK) sz = XFS_BMDR_SPACE_CALC(MINDBTPTRS); - } else { - maxleafents = MAXAEXTNUM; + else sz = XFS_BMDR_SPACE_CALC(MINABTPTRS); - } + maxrootrecs = xfs_bmdr_maxrecs(sz, 0); minleafrecs = mp->m_bmap_dmnr[0]; minnoderecs = mp->m_bmap_dmnr[1]; diff --git a/fs/xfs/libxfs/xfs_inode_buf.c b/fs/xfs/libxfs/xfs_inode_buf.c index 87781a5d5a45..b1c37a82ddce 100644 --- a/fs/xfs/libxfs/xfs_inode_buf.c +++ b/fs/xfs/libxfs/xfs_inode_buf.c @@ -337,6 +337,7 @@ xfs_dinode_verify_fork( int whichfork) { uint32_t di_nextents = XFS_DFORK_NEXTENTS(dip, whichfork); + xfs_extnum_t max_extents; switch (XFS_DFORK_FORMAT(dip, whichfork)) { case XFS_DINODE_FMT_LOCAL: @@ -358,12 +359,9 @@ xfs_dinode_verify_fork( return __this_address; break; case XFS_DINODE_FMT_BTREE: - if (whichfork == XFS_ATTR_FORK) { - if (di_nextents > MAXAEXTNUM) - return __this_address; - } else if (di_nextents > MAXEXTNUM) { + max_extents = xfs_iext_max_nextents(whichfork); + if (di_nextents > max_extents) return __this_address; - } break; default: return __this_address; diff --git a/fs/xfs/libxfs/xfs_inode_fork.c b/fs/xfs/libxfs/xfs_inode_fork.c index 9149f4f796fc..e136c29a0ec1 100644 --- a/fs/xfs/libxfs/xfs_inode_fork.c +++ b/fs/xfs/libxfs/xfs_inode_fork.c @@ -744,7 +744,7 @@ xfs_iext_count_may_overflow( if (whichfork == XFS_COW_FORK) return 0; - max_exts = (whichfork == XFS_ATTR_FORK) ? MAXAEXTNUM : MAXEXTNUM; + max_exts = xfs_iext_max_nextents(whichfork); if (XFS_TEST_ERROR(false, ip->i_mount, XFS_ERRTAG_REDUCE_MAX_IEXTENTS)) max_exts = 10; diff --git a/fs/xfs/libxfs/xfs_inode_fork.h b/fs/xfs/libxfs/xfs_inode_fork.h index 3d64a3acb0ed..2605f7ff8fc1 100644 --- a/fs/xfs/libxfs/xfs_inode_fork.h +++ b/fs/xfs/libxfs/xfs_inode_fork.h @@ -133,6 +133,14 @@ static inline int8_t xfs_ifork_format(struct xfs_ifork *ifp) return ifp->if_format; } +static inline xfs_extnum_t xfs_iext_max_nextents(int whichfork) +{ + if (whichfork == XFS_DATA_FORK || whichfork == XFS_COW_FORK) + return MAXEXTNUM; + + return MAXAEXTNUM; +} + struct xfs_ifork *xfs_ifork_alloc(enum xfs_dinode_fmt format, xfs_extnum_t nextents); struct xfs_ifork *xfs_iext_state_to_fork(struct xfs_inode *ip, int state); |