Revision f52afc93cd018fe6910133a05d44671192d1aeb0 authored by Jan Kara on 27 September 2018, 11:23:32 UTC, committed by Dan Williams on 27 September 2018, 17:56:15 UTC
When dax_lock_mapping_entry() has to sleep to obtain entry lock, it will
fail to unlock mapping->i_pages spinlock and thus immediately deadlock
against itself when retrying to grab the entry lock again. Fix the
problem by unlocking mapping->i_pages before retrying.
Fixes: c2a7d2a11552 ("filesystem-dax: Introduce dax_lock_mapping_entry()")
Reported-by: Barret Rhoden <brho@google.com>
Signed-off-by: Jan Kara <jack@suse.cz>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
1 parent 6bf4ca7
| File | Mode | Size |
|---|---|---|
| api-aead.rst | -rw-r--r-- | 1.0 KB |
| api-akcipher.rst | -rw-r--r-- | 789 bytes |
| api-digest.rst | -rw-r--r-- | 1.4 KB |
| api-intro.txt | -rw-r--r-- | 6.5 KB |
| api-kpp.rst | -rw-r--r-- | 1.3 KB |
| api-rng.rst | -rw-r--r-- | 446 bytes |
| api-samples.rst | -rw-r--r-- | 5.5 KB |
| api-skcipher.rst | -rw-r--r-- | 2.6 KB |
| api.rst | -rw-r--r-- | 725 bytes |
| architecture.rst | -rw-r--r-- | 15.4 KB |
| asymmetric-keys.txt | -rw-r--r-- | 15.5 KB |
| async-tx-api.txt | -rw-r--r-- | 9.1 KB |
| conf.py | -rw-r--r-- | 240 bytes |
| crypto_engine.rst | -rw-r--r-- | 1.9 KB |
| descore-readme.txt | -rw-r--r-- | 16.8 KB |
| devel-algos.rst | -rw-r--r-- | 9.5 KB |
| index.rst | -rw-r--r-- | 499 bytes |
| intro.rst | -rw-r--r-- | 3.1 KB |
| userspace-if.rst | -rw-r--r-- | 14.1 KB |
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