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xfs: don't deplete the reserve pool when trying to shrink the fs
Every now and then, xfs/168 fails with this logged in dmesg:
Reserve blocks depleted! Consider increasing reserve pool size.
EXPERIMENTAL online shrink feature in use. Use at your own risk!
Per-AG reservation for AG 1 failed. Filesystem may run out of space.
Per-AG reservation for AG 1 failed. Filesystem may run out of space.
Error -28 reserving per-AG metadata reserve pool.
Corruption of in-memory data (0x8) detected at xfs_ag_shrink_space+0x23c/0x3b0 [xfs] (fs/xfs/libxfs/xfs_ag.c:1007). Shutting down filesystem.
It's silly to deplete the reserved blocks pool just to shrink the
filesystem, particularly since the fs goes down after that.
Fixes: fb2fc17201
("xfs: support shrinking unused space in the last AG")
Signed-off-by: Darrick J. Wong <djwong@kernel.org>
This commit is contained in:
parent
858fd168a9
commit
06f3ef6e17
1 changed files with 7 additions and 3 deletions
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@ -140,9 +140,13 @@ xfs_growfs_data_private(
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return -EINVAL;
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}
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error = xfs_trans_alloc(mp, &M_RES(mp)->tr_growdata,
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(delta > 0 ? XFS_GROWFS_SPACE_RES(mp) : -delta), 0,
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XFS_TRANS_RESERVE, &tp);
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if (delta > 0)
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error = xfs_trans_alloc(mp, &M_RES(mp)->tr_growdata,
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XFS_GROWFS_SPACE_RES(mp), 0, XFS_TRANS_RESERVE,
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&tp);
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else
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error = xfs_trans_alloc(mp, &M_RES(mp)->tr_growdata, -delta, 0,
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0, &tp);
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if (error)
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return error;
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