diff options
| author | alc <alc@FreeBSD.org> | 2006-10-22 04:28:14 +0000 |
|---|---|---|
| committer | alc <alc@FreeBSD.org> | 2006-10-22 04:28:14 +0000 |
| commit | cbcb760109a202fb847f48aa942a8b84b1e85015 (patch) | |
| tree | 4eda40daa4f02d9dd3c07a7a5c1c6363ac1f7f37 /sys/kern/vfs_bio.c | |
| parent | ab1a7ca9a2ebaf9bec6c13a545bd4c209c969ee7 (diff) | |
| download | FreeBSD-src-cbcb760109a202fb847f48aa942a8b84b1e85015.zip FreeBSD-src-cbcb760109a202fb847f48aa942a8b84b1e85015.tar.gz | |
Replace PG_BUSY with VPO_BUSY. In other words, changes to the page's
busy flag, i.e., VPO_BUSY, are now synchronized by the per-vm object
lock instead of the global page queues lock.
Diffstat (limited to 'sys/kern/vfs_bio.c')
| -rw-r--r-- | sys/kern/vfs_bio.c | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/sys/kern/vfs_bio.c b/sys/kern/vfs_bio.c index 904e84c..2e6e8ec 100644 --- a/sys/kern/vfs_bio.c +++ b/sys/kern/vfs_bio.c @@ -1519,7 +1519,7 @@ vfs_vmio_release(struct buf *bp) * the responsibility of the process that * busied the pages to deal with them. */ - if ((m->flags & PG_BUSY) || (m->busy != 0)) + if ((m->oflags & VPO_BUSY) || (m->busy != 0)) continue; if (m->wire_count == 0) { @@ -2879,7 +2879,7 @@ allocbuf(struct buf *bp, int size) * retry because it might have gotten freed out * from under us. * - * We can only test PG_BUSY here. Blocking on + * We can only test VPO_BUSY here. Blocking on * m->busy might lead to a deadlock: * * vm_fault->getpages->cluster_read->allocbuf @@ -3369,7 +3369,7 @@ vfs_page_set_valid(struct buf *bp, vm_ooffset_t off, int pageno, vm_page_t m) * This routine is called before a device strategy routine. * It is used to tell the VM system that paging I/O is in * progress, and treat the pages associated with the buffer - * almost as being PG_BUSY. Also the object paging_in_progress + * almost as being VPO_BUSY. Also the object paging_in_progress * flag is handled to make sure that the object doesn't become * inconsistant. * |
