diff options
| author | Juri Lelli <[email protected]> | 2018-02-13 19:55:18 +0100 |
|---|---|---|
| committer | Ingo Molnar <[email protected]> | 2018-02-14 12:01:22 +0100 |
| commit | e5684bbfc3f03480d6ba2150f133630fb510d3eb (patch) | |
| tree | 04ffd26f60f4138ab031e194a43284c9bcdd2ad1 | |
| parent | 7246a966b6784a9a72f3d8bcc2784cddee459967 (diff) | |
Documentation/locking/lockdep: Update info about states
Commit:
d92a8cfcb37e ("locking/lockdep: Rework FS_RECLAIM annotation")
removed the 'reclaim_fs' lockdep STATE.
Reflect the change in the documentation.
While we are at it, also clarify the formula to calculate the number of state bits.
Signed-off-by: Juri Lelli <[email protected]>
Acked-by: Peter Zijlstra (Intel) <[email protected]>
Cc: Jonathan Corbet <[email protected]>
Cc: Linus Torvalds <[email protected]>
Cc: Peter Zijlstra <[email protected]>
Cc: Thomas Gleixner <[email protected]>
Cc: [email protected]
Link: http://lkml.kernel.org/r/[email protected]
Signed-off-by: Ingo Molnar <[email protected]>
| -rw-r--r-- | Documentation/locking/lockdep-design.txt | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/Documentation/locking/lockdep-design.txt b/Documentation/locking/lockdep-design.txt index 9de1c158d44c..e341c2f34e68 100644 --- a/Documentation/locking/lockdep-design.txt +++ b/Documentation/locking/lockdep-design.txt @@ -27,7 +27,8 @@ lock-class. State ----- -The validator tracks lock-class usage history into 4n + 1 separate state bits: +The validator tracks lock-class usage history into 4 * nSTATEs + 1 separate +state bits: - 'ever held in STATE context' - 'ever held as readlock in STATE context' @@ -37,7 +38,6 @@ The validator tracks lock-class usage history into 4n + 1 separate state bits: Where STATE can be either one of (kernel/locking/lockdep_states.h) - hardirq - softirq - - reclaim_fs - 'ever used' [ == !unused ] |