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xfs: fix growfsrt failure during rt volume attach

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One more series to fix a transaction reservation overrun while
 trying to attach a very large rt volume to a filesystem.
 
 This has been running on the djcloud for months with no problems.  Enjoy!
 
 Signed-off-by: Darrick J. Wong <djwong@kernel.org>
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Merge tag 'fix-growfsrt-failures-6.8_2023-12-13' of https://git.kernel.org/pub/scm/linux/kernel/git/djwong/xfs-linux into xfs-6.8-mergeB

xfs: fix growfsrt failure during rt volume attach

One more series to fix a transaction reservation overrun while
trying to attach a very large rt volume to a filesystem.

Signed-off-by: Darrick J. Wong <djwong@kernel.org>
Signed-off-by: Chandan Babu R <chandanbabu@kernel.org>

* tag 'fix-growfsrt-failures-6.8_2023-12-13' of https://git.kernel.org/pub/scm/linux/kernel/git/djwong/xfs-linux:
  xfs: recompute growfsrtfree transaction reservation while growing rt volume
This commit is contained in:
Chandan Babu R 2023-12-14 10:50:35 +05:30
commit 19b366dae1
1 changed files with 5 additions and 0 deletions
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5
fs/xfs/xfs_rtalloc.c
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@ -1038,6 +1038,9 @@ xfs_growfs_rt(
nrsumblocks = xfs_rtsummary_blockcount(mp, nrsumlevels,
nsbp->sb_rbmblocks);
nmp->m_rsumsize = nrsumsize = XFS_FSB_TO_B(mp, nrsumblocks);
/* recompute growfsrt reservation from new rsumsize */
xfs_trans_resv_calc(nmp, &nmp->m_resv);
/*
* Start a transaction, get the log reservation.
*/
@ -1124,6 +1127,8 @@ xfs_growfs_rt(
*/
mp->m_rsumlevels = nrsumlevels;
mp->m_rsumsize = nrsumsize;
/* recompute growfsrt reservation from new rsumsize */
xfs_trans_resv_calc(mp, &mp->m_resv);
error = xfs_trans_commit(tp);
if (error)