diff options
| author | Darrick J. Wong <djwong@kernel.org> | 2022-08-17 16:08:34 -0700 |
|---|---|---|
| committer | Darrick J. Wong <djwong@kernel.org> | 2022-11-09 19:07:55 -0800 |
| commit | a655e57681073a3f63c39d42b2206657ad11f34e (patch) | |
| tree | 4e80a7ebb297930a030a48906352089b86082ec3 /fs/xfs/xfs_trans.c | |
| parent | 15d265aafa2b50f03bae08a19ad0575706ad3ead (diff) | |
xfs: use shifting and masking when converting rt extents, if possiblerefactor-rt-unit-conversions_2022-11-09
Avoid the costs of integer division (32-bit and 64-bit) if the realtime
extent size is a power of two.
Signed-off-by: Darrick J. Wong <djwong@kernel.org>
Diffstat (limited to 'fs/xfs/xfs_trans.c')
| -rw-r--r-- | fs/xfs/xfs_trans.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/fs/xfs/xfs_trans.c b/fs/xfs/xfs_trans.c index 3e81826c9a0a..f39c5daeef86 100644 --- a/fs/xfs/xfs_trans.c +++ b/fs/xfs/xfs_trans.c @@ -710,6 +710,10 @@ xfs_trans_unreserve_and_mod_sb( mp->m_sb.sb_agcount += tp->t_agcount_delta; mp->m_sb.sb_imax_pct += tp->t_imaxpct_delta; mp->m_sb.sb_rextsize += tp->t_rextsize_delta; + if (tp->t_rextsize_delta) { + mp->m_rtxblklog = log2_if_power2(mp->m_sb.sb_rextsize); + mp->m_rtxblkmask = mask64_if_power2(mp->m_sb.sb_rextsize); + } mp->m_sb.sb_rbmblocks += tp->t_rbmblocks_delta; mp->m_sb.sb_rblocks += tp->t_rblocks_delta; mp->m_sb.sb_rextents += tp->t_rextents_delta; |