diff options
Diffstat (limited to 'sys/fs/tmpfs/tmpfs_subr.c')
| -rw-r--r-- | sys/fs/tmpfs/tmpfs_subr.c | 12 |
1 files changed, 7 insertions, 5 deletions
diff --git a/sys/fs/tmpfs/tmpfs_subr.c b/sys/fs/tmpfs/tmpfs_subr.c index 47ac2e6..b003b2c 100644 --- a/sys/fs/tmpfs/tmpfs_subr.c +++ b/sys/fs/tmpfs/tmpfs_subr.c @@ -38,9 +38,11 @@ __FBSDID("$FreeBSD$"); #include <sys/param.h> #include <sys/fnv_hash.h> +#include <sys/lock.h> #include <sys/namei.h> #include <sys/priv.h> #include <sys/proc.h> +#include <sys/rwlock.h> #include <sys/stat.h> #include <sys/systm.h> #include <sys/sysctl.h> @@ -1270,7 +1272,7 @@ tmpfs_reg_resize(struct vnode *vp, off_t newsize, boolean_t ignerr) tmpfs_pages_check_avail(tmp, newpages - oldpages) == 0) return (ENOSPC); - VM_OBJECT_LOCK(uobj); + VM_OBJECT_WLOCK(uobj); if (newsize < oldsize) { /* * Zero the truncated part of the last page. @@ -1290,9 +1292,9 @@ retry: } else if (vm_pager_has_page(uobj, idx, NULL, NULL)) { m = vm_page_alloc(uobj, idx, VM_ALLOC_NORMAL); if (m == NULL) { - VM_OBJECT_UNLOCK(uobj); + VM_OBJECT_WUNLOCK(uobj); VM_WAIT; - VM_OBJECT_LOCK(uobj); + VM_OBJECT_WLOCK(uobj); goto retry; } else if (m->valid != VM_PAGE_BITS_ALL) { ma[0] = m; @@ -1312,7 +1314,7 @@ retry: if (ignerr) m = NULL; else { - VM_OBJECT_UNLOCK(uobj); + VM_OBJECT_WUNLOCK(uobj); return (EIO); } } @@ -1334,7 +1336,7 @@ retry: } } uobj->size = newpages; - VM_OBJECT_UNLOCK(uobj); + VM_OBJECT_WUNLOCK(uobj); TMPFS_LOCK(tmp); tmp->tm_pages_used += (newpages - oldpages); |
