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| author | David S. Miller <davem@sunset.davemloft.net> | 2007-04-26 20:39:14 -0700 |
|---|---|---|
| committer | David S. Miller <davem@sunset.davemloft.net> | 2007-04-26 20:39:14 -0700 |
| commit | 39bf09493042200b967cdf2ee6e3f670b7963903 (patch) | |
| tree | 081f76ef36a7ac43dd756dea1f9201caba7c821b /fs/afs/internal.h | |
| parent | 68c708fd5e90f6d178c84bb7e641589eb2842319 (diff) | |
| download | op-kernel-dev-39bf09493042200b967cdf2ee6e3f670b7963903.zip op-kernel-dev-39bf09493042200b967cdf2ee6e3f670b7963903.tar.gz | |
[AFS]: Eliminate cmpxchg() usage in vlocation code.
cmpxchg() is not available on every processor so can't
be used in generic code.
Replace with spinlock protection on the ->state changes,
wakeups, and wait loops.
Add what appears to be a missing wakeup on transition
to AFS_VL_VALID state in afs_vlocation_updater().
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'fs/afs/internal.h')
| -rw-r--r-- | fs/afs/internal.h | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/fs/afs/internal.h b/fs/afs/internal.h index 73bfa0b..6dd3197 100644 --- a/fs/afs/internal.h +++ b/fs/afs/internal.h @@ -219,7 +219,7 @@ struct afs_vlocation { struct afs_volume *vols[3]; /* volume access record pointer (index by type) */ wait_queue_head_t waitq; /* status change waitqueue */ time_t update_at; /* time at which record should be updated */ - rwlock_t lock; /* access lock */ + spinlock_t lock; /* access lock */ afs_vlocation_state_t state; /* volume location state */ unsigned short upd_rej_cnt; /* ENOMEDIUM count during update */ unsigned short upd_busy_cnt; /* EBUSY count during update */ |
