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authorMatthew Ahrens <[email protected]>2013-08-30 01:19:35 -0800
committerBrian Behlendorf <[email protected]>2013-11-05 12:25:26 -0800
commit92bc214c2e00bd4a430eac1629f1bcf2fc590d51 (patch)
tree2f52bb1b45423ac9d7bd9c9d43299c953e72c0c9 /module/zfs/dmu.c
parentac72fac3eaa569902cad88053167f7d74e7fe7e4 (diff)
Illumos #4082
4082 zfs receive gets EFBIG from dmu_tx_hold_free() Reviewed by: Eric Schrock <[email protected]> Reviewed by: Christopher Siden <[email protected]> Reviewed by: George Wilson <[email protected]> Approved by: Richard Lowe <[email protected]> References: https://www.illumos.org/issues/4082 illumos/illumos-gate@5253393b09789ec67bec153b866d7285a1cf1645 Ported-by: Richard Yao <[email protected]> Signed-off-by: Brian Behlendorf <[email protected]> Issue #1775
Diffstat (limited to 'module/zfs/dmu.c')
-rw-r--r--module/zfs/dmu.c10
1 files changed, 10 insertions, 0 deletions
diff --git a/module/zfs/dmu.c b/module/zfs/dmu.c
index 1136e1d70..72fce35c5 100644
--- a/module/zfs/dmu.c
+++ b/module/zfs/dmu.c
@@ -672,6 +672,16 @@ dmu_free_long_range(objset_t *os, uint64_t object,
if (err != 0)
return (err);
err = dmu_free_long_range_impl(os, dn, offset, length);
+
+ /*
+ * It is important to zero out the maxblkid when freeing the entire
+ * file, so that (a) subsequent calls to dmu_free_long_range_impl()
+ * will take the fast path, and (b) dnode_reallocate() can verify
+ * that the entire file has been freed.
+ */
+ if (offset == 0 && length == DMU_OBJECT_END)
+ dn->dn_maxblkid = 0;
+
dnode_rele(dn, FTAG);
return (err);
}