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| author | Tejun Heo <tj@kernel.org> | 2024-03-25 07:21:03 -1000 |
|---|---|---|
| committer | Tejun Heo <tj@kernel.org> | 2024-03-25 07:21:03 -1000 |
| commit | 456a78eef2670d0e9521e87f35a056de8fec7fb2 (patch) | |
| tree | 15e8f19f5f70e9b72f508940dca95b554e8a665a /include/linux/workqueue.h | |
| parent | f09b10b6f442656524d2ee26e45966401a14f54b (diff) | |
| download | linux-456a78eef2670d0e9521e87f35a056de8fec7fb2.tar.gz linux-456a78eef2670d0e9521e87f35a056de8fec7fb2.tar.bz2 linux-456a78eef2670d0e9521e87f35a056de8fec7fb2.zip | |
workqueue: Remember whether a work item was on a BH workqueue
Add an off-queue flag, WORK_OFFQ_BH, that indicates whether the last
workqueue the work item was on was a BH one. This will be used to test
whether a work item is BH in cancel_sync path to implement atomic
cancel_sync'ing for BH work items.
Signed-off-by: Tejun Heo <tj@kernel.org>
Reviewed-by: Lai Jiangshan <jiangshanlai@gmail.com>
Diffstat (limited to 'include/linux/workqueue.h')
| -rw-r--r-- | include/linux/workqueue.h | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/include/linux/workqueue.h b/include/linux/workqueue.h index a5075969931b..777b0186317e 100644 --- a/include/linux/workqueue.h +++ b/include/linux/workqueue.h @@ -52,9 +52,10 @@ enum work_bits { * * MSB * [ pool ID ] [ disable depth ] [ OFFQ flags ] [ STRUCT flags ] - * 16 bits 0 bits 4 or 5 bits + * 16 bits 1 bit 4 or 5 bits */ WORK_OFFQ_FLAG_SHIFT = WORK_STRUCT_FLAG_BITS, + WORK_OFFQ_BH_BIT = WORK_OFFQ_FLAG_SHIFT, WORK_OFFQ_FLAG_END, WORK_OFFQ_FLAG_BITS = WORK_OFFQ_FLAG_END - WORK_OFFQ_FLAG_SHIFT, @@ -98,6 +99,7 @@ enum wq_misc_consts { }; /* Convenience constants - of type 'unsigned long', not 'enum'! */ +#define WORK_OFFQ_BH (1ul << WORK_OFFQ_BH_BIT) #define WORK_OFFQ_FLAG_MASK (((1ul << WORK_OFFQ_FLAG_BITS) - 1) << WORK_OFFQ_FLAG_SHIFT) #define WORK_OFFQ_DISABLE_MASK (((1ul << WORK_OFFQ_DISABLE_BITS) - 1) << WORK_OFFQ_DISABLE_SHIFT) #define WORK_OFFQ_POOL_NONE ((1ul << WORK_OFFQ_POOL_BITS) - 1) |