diff options
| author | Brian Behlendorf <[email protected]> | 2019-07-12 13:27:24 -0700 |
|---|---|---|
| committer | Brian Behlendorf <[email protected]> | 2019-07-17 15:07:46 -0700 |
| commit | 041205afee7e151a0ac10c9b5314186cf65417dc (patch) | |
| tree | bbdb0946146595835459122812085230874e35e8 /module | |
| parent | a649768a1771236c4af783ec3f03b1d6da9b5862 (diff) | |
Linux 5.3 compat: rw_semaphore owner
Commit https://github.com/torvalds/linux/commit/94a9717b updated the
rwsem's owner field to contain additional flags describing the rwsem's
state. Rather then update the wrappers to mask out these bits, the
code no longer relies on the owner stored by the kernel. This does
increase the size of a krwlock_t but it makes the implementation
less sensitive to future kernel changes.
Reviewed-by: Tony Hutter <[email protected]>
Reviewed-by: Tomohiro Kusumi <[email protected]>
Signed-off-by: Brian Behlendorf <[email protected]>
Closes #9029
Diffstat (limited to 'module')
| -rw-r--r-- | module/spl/spl-rwlock.c | 3 |
1 files changed, 0 insertions, 3 deletions
diff --git a/module/spl/spl-rwlock.c b/module/spl/spl-rwlock.c index 86727ed19..886e16924 100644 --- a/module/spl/spl-rwlock.c +++ b/module/spl/spl-rwlock.c @@ -119,9 +119,6 @@ rwsem_tryupgrade(struct rw_semaphore *rwsem) if (__rwsem_tryupgrade(rwsem)) { rwsem_release(&rwsem->dep_map, 1, _RET_IP_); rwsem_acquire(&rwsem->dep_map, 0, 1, _RET_IP_); -#ifdef CONFIG_RWSEM_SPIN_ON_OWNER - rwsem->owner = current; -#endif return (1); } return (0); |