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We can call ia64_flush_dirty() when the corresponding process is

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locked or not. As such, use PROC_LOCKED() to determine which case
it is and lock the process when not.
This commit is contained in:
Marcel Moolenaar 2008-05-21 05:15:27 +00:00
parent 99f233296d
commit 0fbd447b92
1 changed files with 6 additions and 3 deletions
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9
sys/ia64/ia64/machdep.c
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@ -1106,7 +1106,7 @@ ia64_flush_dirty(struct thread *td, struct _special *r)
struct iovec iov; struct iovec iov;
struct uio uio; struct uio uio;
uint64_t bspst, kstk, rnat; uint64_t bspst, kstk, rnat;
int error; int error, locked;
if (r->ndirty == 0) if (r->ndirty == 0)
return (0); return (0);
@ -1127,7 +1127,9 @@ ia64_flush_dirty(struct thread *td, struct _special *r)
r->rnat = (bspst > kstk && (bspst & 0x1ffL) < (kstk & 0x1ffL)) r->rnat = (bspst > kstk && (bspst & 0x1ffL) < (kstk & 0x1ffL))
? *(uint64_t*)(kstk | 0x1f8L) : rnat; ? *(uint64_t*)(kstk | 0x1f8L) : rnat;
} else { } else {
PHOLD(td->td_proc); locked = PROC_LOCKED(td->td_proc);
if (!locked)
PHOLD(td->td_proc);
iov.iov_base = (void*)(uintptr_t)kstk; iov.iov_base = (void*)(uintptr_t)kstk;
iov.iov_len = r->ndirty; iov.iov_len = r->ndirty;
uio.uio_iov = &iov; uio.uio_iov = &iov;
@ -1145,7 +1147,8 @@ ia64_flush_dirty(struct thread *td, struct _special *r)
*/ */
if (uio.uio_resid != 0 && error == 0) if (uio.uio_resid != 0 && error == 0)
error = ENOSPC; error = ENOSPC;
PRELE(td->td_proc); if (!locked)
PRELE(td->td_proc);
} }
r->bspstore += r->ndirty; r->bspstore += r->ndirty;