diff options
Diffstat (limited to 'sys/kern/uipc_syscalls.c')
| -rw-r--r-- | sys/kern/uipc_syscalls.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/sys/kern/uipc_syscalls.c b/sys/kern/uipc_syscalls.c index a14be72..a137875 100644 --- a/sys/kern/uipc_syscalls.c +++ b/sys/kern/uipc_syscalls.c @@ -1715,6 +1715,7 @@ sf_buf_mext(void *addr, void *args) m = sf_buf_page(args); sf_buf_free(args); + vm_page_lock(m); vm_page_lock_queues(); vm_page_unwire(m, 0); /* @@ -1725,6 +1726,7 @@ sf_buf_mext(void *addr, void *args) if (m->wire_count == 0 && m->object == NULL) vm_page_free(m); vm_page_unlock_queues(); + vm_page_unlock(m); if (addr == NULL) return; sfs = addr; @@ -2108,6 +2110,7 @@ retry_space: mbstat.sf_iocnt++; } if (error) { + vm_page_lock(pg); vm_page_lock_queues(); vm_page_unwire(pg, 0); /* @@ -2121,6 +2124,7 @@ retry_space: vm_page_free(pg); } vm_page_unlock_queues(); + vm_page_unlock(pg); VM_OBJECT_UNLOCK(obj); if (error == EAGAIN) error = 0; /* not a real error */ @@ -2134,6 +2138,7 @@ retry_space: if ((sf = sf_buf_alloc(pg, (mnw ? SFB_NOWAIT : SFB_CATCH))) == NULL) { mbstat.sf_allocfail++; + vm_page_lock(pg); vm_page_lock_queues(); vm_page_unwire(pg, 0); /* @@ -2142,6 +2147,7 @@ retry_space: if (pg->wire_count == 0 && pg->object == NULL) vm_page_free(pg); vm_page_unlock_queues(); + vm_page_unlock(pg); error = (mnw ? EAGAIN : EINTR); break; } |
