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compare: kamkow1:7660bcab825777d46038e1b7eacb085598e2a7eb
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2 Commits
cb126a853e ... 7660bcab82

Author SHA1 Message Date
kamkow1
7660bcab82 proc_wait_for () lock wait_proc to avoid races
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2026-04-16 22:00:42 +02:00
kamkow1
9346a10d74 idedrv Reject drive request if idedrv->current_req != NULL 2026-04-16 21:59:46 +02:00
2 changed files with 10 additions and 0 deletions
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6
kernel/device/storage/idedrv.c
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@@ -286,6 +286,9 @@ DEFINE_DEVICE_OP (idedrv_read) {
if (sector + sector_count > idedrv->sector_count)
return -ST_OOB_ERROR;
if (idedrv->current_req != NULL)
return -ST_TRY_AGAIN;
if (!ide_wait (idedrv->io, 100000, false, false))
return -ST_XDRV_READ_ERROR;
@@ -347,6 +350,9 @@ DEFINE_DEVICE_OP (idedrv_write) {
if (sector + sector_count > idedrv->sector_count)
return -ST_OOB_ERROR;
if (idedrv->current_req != NULL)
return -ST_TRY_AGAIN;
if (!ide_wait (idedrv->io, 100000, false, false))
return -ST_XDRV_WRITE_ERROR;

4
kernel/proc/proc.c
View File

@@ -378,7 +378,11 @@ void proc_kill (struct proc* proc, struct reschedule_ctx* rctx) {
}
void proc_wait_for (struct proc* proc, struct reschedule_ctx* rctx, struct proc* wait_proc) {
uint64_t fwp;
spin_lock (&wait_proc->lock, &fwp);
proc_sq_suspend (proc, &wait_proc->done_sq, NULL, 0, rctx, NULL, NULL);
spin_unlock (&wait_proc->lock, fwp);
}
void proc_irq_sched (void* arg, void* regs, bool user, struct reschedule_ctx* rctx) {