| .. | .. |
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| 209 | 209 | |
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| 210 | 210 | #ifdef CONFIG_PREEMPT |
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| 211 | 211 | ldr r8, [tsk, #TI_PREEMPT] @ get preempt count |
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| 212 | | - ldr r0, [tsk, #TI_FLAGS] @ get flags |
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| 213 | 212 | teq r8, #0 @ if preempt count != 0 |
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| 213 | + bne 1f @ return from exeption |
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| 214 | + ldr r0, [tsk, #TI_FLAGS] @ get flags |
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| 215 | + tst r0, #_TIF_NEED_RESCHED @ if NEED_RESCHED is set |
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| 216 | + blne svc_preempt @ preempt! |
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| 217 | + |
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| 218 | + ldr r8, [tsk, #TI_PREEMPT_LAZY] @ get preempt lazy count |
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| 219 | + teq r8, #0 @ if preempt lazy count != 0 |
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| 214 | 220 | movne r0, #0 @ force flags to 0 |
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| 215 | | - tst r0, #_TIF_NEED_RESCHED |
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| 221 | + tst r0, #_TIF_NEED_RESCHED_LAZY |
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| 216 | 222 | blne svc_preempt |
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| 223 | +1: |
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| 217 | 224 | #endif |
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| 218 | 225 | |
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| 219 | 226 | svc_exit r5, irq = 1 @ return from exception |
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| .. | .. |
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| 228 | 235 | 1: bl preempt_schedule_irq @ irq en/disable is done inside |
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| 229 | 236 | ldr r0, [tsk, #TI_FLAGS] @ get new tasks TI_FLAGS |
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| 230 | 237 | tst r0, #_TIF_NEED_RESCHED |
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| 238 | + bne 1b |
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| 239 | + tst r0, #_TIF_NEED_RESCHED_LAZY |
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| 231 | 240 | reteq r8 @ go again |
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| 232 | | - b 1b |
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| 241 | + ldr r0, [tsk, #TI_PREEMPT_LAZY] @ get preempt lazy count |
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| 242 | + teq r0, #0 @ if preempt lazy count != 0 |
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| 243 | + beq 1b |
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| 244 | + ret r8 @ go again |
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| 245 | + |
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| 233 | 246 | #endif |
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| 234 | 247 | |
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| 235 | 248 | __und_fault: |
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