diff options
| author | Darrick J. Wong <djwong@kernel.org> | 2021-09-01 11:18:09 -0700 |
|---|---|---|
| committer | Darrick J. Wong <djwong@kernel.org> | 2021-09-17 18:55:21 -0700 |
| commit | 015d7ef6d0cd879c67e3df0407f62222de8ba969 (patch) | |
| tree | 7f49f13051179904128ce42c790f9fc2e01183bf /fs/xfs/libxfs | |
| parent | 0da6663f5e37cfb87c1aba7a75242d431135fb7a (diff) | |
xfs: realtime refcount btree transaction reservations
Make sure that there's enough log reservation to handle mapping
and unmapping realtime extents. We have to reserve enough space
to handle a split in the rtrefcountbt to add the record and a second
split in the regular refcountbt to record the rtrefcountbt split.
Signed-off-by: Darrick J. Wong <djwong@kernel.org>
Diffstat (limited to 'fs/xfs/libxfs')
| -rw-r--r-- | fs/xfs/libxfs/xfs_trans_resv.c | 25 |
1 files changed, 22 insertions, 3 deletions
diff --git a/fs/xfs/libxfs/xfs_trans_resv.c b/fs/xfs/libxfs/xfs_trans_resv.c index b38aa034ab3e..58aae062dbdb 100644 --- a/fs/xfs/libxfs/xfs_trans_resv.c +++ b/fs/xfs/libxfs/xfs_trans_resv.c @@ -89,6 +89,14 @@ xfs_refcount_log_count( return num_ops * (2 * mp->m_refc_maxlevels - 1); } +static unsigned int +xfs_rtrefcount_log_count( + struct xfs_mount *mp, + unsigned int num_ops) +{ + return num_ops * (2 * mp->m_rtrefc_maxlevels - 1); +} + /* * Logging inodes is really tricksy. They are logged in memory format, * which means that what we write into the log doesn't directly translate into @@ -255,10 +263,13 @@ xfs_rtalloc_log_count( * Compute the log reservation required to handle the refcount update * transaction. Refcount updates are always done via deferred log items. * - * This is calculated as: + * This is calculated as the max of: * Data device refcount updates (t1): * the agfs of the ags containing the blocks: nr_ops * sector size * the refcount btrees: nr_ops * 1 trees * (2 * max depth - 1) * block size + * Realtime refcount updates (t2); + * the rt refcount inode + * the rtrefcount btrees: nr_ops * 1 trees * (2 * max depth - 1) * block size */ static unsigned int xfs_refcount_log_reservation( @@ -266,12 +277,20 @@ xfs_refcount_log_reservation( unsigned int nr_ops) { unsigned int blksz = XFS_FSB_TO_B(mp, 1); + unsigned int t1, t2 = 0; if (!xfs_has_reflink(mp)) return 0; - return xfs_calc_buf_res(nr_ops, mp->m_sb.sb_sectsize) + - xfs_calc_buf_res(xfs_refcount_log_count(mp, nr_ops), blksz); + t1 = xfs_calc_buf_res(nr_ops, mp->m_sb.sb_sectsize) + + xfs_calc_buf_res(xfs_refcount_log_count(mp, nr_ops), blksz); + + if (xfs_has_realtime(mp)) + t2 = xfs_calc_inode_res(mp, 1) + + xfs_calc_buf_res(xfs_rtrefcount_log_count(mp, nr_ops), + blksz); + + return max(t1, t2); } /* |