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Handle zap_add() failures in mixed case mode

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With "casesensitivity=mixed", zap_add() could fail when the number of
files/directories with the same name (varying in case) exceed the
capacity of the leaf node of a Fatzap. This results in a ASSERT()
failure as zfs_link_create() does not expect zap_add() to fail. The fix
is to handle these failures and rollback the transactions.

Reviewed by: Matt Ahrens <mahrens@delphix.com>
Reviewed-by: Chunwei Chen <david.chen@nutanix.com>
Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: Sanjeev Bagewadi <sanjeev.bagewadi@gmail.com>
Closes #7011 
Closes #7054
This commit is contained in:
sanjeevbagewadi
2018-02-09 23:45:53 +05:30
committed by Brian Behlendorf
parent eb9c4532dd
commit cc63068e95
9 changed files with 290 additions and 32 deletions
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tests/runfiles/linux.run
+1 -1
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@@ -59,7 +59,7 @@ tags = ['functional', 'cachefile']
# 'mixed_none_lookup', 'mixed_none_lookup_ci', 'mixed_none_delete',
# 'mixed_formd_lookup', 'mixed_formd_lookup_ci', 'mixed_formd_delete']
[tests/functional/casenorm]
tests = ['case_all_values', 'norm_all_values']
tests = ['case_all_values', 'norm_all_values', 'mixed_create_failure']
tags = ['functional', 'casenorm']
[tests/functional/channel_program/lua_core]