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| author | Liam R. Howlett <Liam.Howlett@oracle.com> | 2023-11-01 20:16:25 +0300 |
|---|---|---|
| committer | Andrew Morton <akpm@linux-foundation.org> | 2023-12-12 21:56:58 +0300 |
| commit | 067311d33e650adfe7ae23765959ddcc1ba18510 (patch) | |
| tree | 68062bfddccd0ef9e9faca77845bbaf1ccb108ae /lib/kobject_uevent.c | |
| parent | 271f61a8b41dcd86e1ecc2e0455bcc071bc7dde4 (diff) | |
| download | linux-067311d33e650adfe7ae23765959ddcc1ba18510.tar.xz | |
maple_tree: separate ma_state node from status
The maple tree node is overloaded to keep status as well as the active
node. This, unfortunately, results in a re-walk on underflow or overflow.
Since the maple state has room, the status can be placed in its own enum
in the structure. Once an underflow/overflow is detected, certain modes
can restore the status to active and others may need to re-walk just that
one node to see the entry.
The status being an enum has the benefit of detecting unhandled status in
switch statements.
[Liam.Howlett@oracle.com: fix comments about MAS_*]
Link: https://lkml.kernel.org/r/20231106154124.614247-1-Liam.Howlett@oracle.com
[Liam.Howlett@oracle.com: update forking to separate maple state and node]
Link: https://lkml.kernel.org/r/20231106154551.615042-1-Liam.Howlett@oracle.com
[Liam.Howlett@oracle.com: fix mas_prev() state separation code]
Link: https://lkml.kernel.org/r/20231207193319.4025462-1-Liam.Howlett@oracle.com
Link: https://lkml.kernel.org/r/20231101171629.3612299-9-Liam.Howlett@oracle.com
Signed-off-by: Liam R. Howlett <Liam.Howlett@oracle.com>
Cc: Peng Zhang <zhangpeng.00@bytedance.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Diffstat (limited to 'lib/kobject_uevent.c')
0 files changed, 0 insertions, 0 deletions