tag name | dax-locking-for-4.7 (11d4c0f27352fce3622c89c4b8dbdb79ca61027d) |
tag date | 2016-05-24 13:30:49 -0600 |
tagged by | Ross Zwisler <ross.zwisler@linux.intel.com> |
tagged object | commit 4d9a2c8746... |
Filesystem DAX locking for 4.7
- We use a bit in an exceptional radix tree entry as a lock bit and use it
similarly to how page lock is used for normal faults. This fixes races
between hole instantiation and read faults of the same index.
- Filesystem DAX PMD faults are disabled, and will be re-enabled when PMD
locking is implemented.
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