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authoralc <alc@FreeBSD.org>2002-12-27 06:52:32 +0000
committeralc <alc@FreeBSD.org>2002-12-27 06:52:32 +0000
commita221c3d42210dd3ee0ab8e04d36ee6dda21c1278 (patch)
tree823bf93e876fa2605ac69e59727436adf7e4c40e /sys
parentb9ffe85ed268c0991ac3ab9c47b5a89ae1d58afa (diff)
downloadFreeBSD-src-a221c3d42210dd3ee0ab8e04d36ee6dda21c1278.zip
FreeBSD-src-a221c3d42210dd3ee0ab8e04d36ee6dda21c1278.tar.gz
Hold the page queues lock when calling vm_page_flag_clear().
Diffstat (limited to 'sys')
-rw-r--r--sys/kern/vfs_bio.c6
1 files changed, 6 insertions, 0 deletions
diff --git a/sys/kern/vfs_bio.c b/sys/kern/vfs_bio.c
index 6890642..c44e1c6 100644
--- a/sys/kern/vfs_bio.c
+++ b/sys/kern/vfs_bio.c
@@ -1251,7 +1251,9 @@ brelse(struct buf * bp)
int had_bogus = 0;
m = bp->b_pages[i];
+ vm_page_lock_queues();
vm_page_flag_clear(m, PG_ZERO);
+ vm_page_unlock_queues();
/*
* If we hit a bogus page, fixup *all* the bogus pages
@@ -2220,6 +2222,7 @@ vfs_setdirty(struct buf *bp)
vm_offset_t boffset;
vm_offset_t eoffset;
+ vm_page_lock_queues();
/*
* test the pages to see if they have been modified directly
* by users through the VM system.
@@ -2247,6 +2250,7 @@ vfs_setdirty(struct buf *bp)
}
eoffset = ((i + 1) << PAGE_SHIFT) - (bp->b_offset & PAGE_MASK);
+ vm_page_unlock_queues();
/*
* Fit it to the buffer.
*/
@@ -3440,7 +3444,9 @@ vfs_bio_clrbuf(struct buf *bp)
}
}
bp->b_pages[i]->valid |= mask;
+ vm_page_lock_queues();
vm_page_flag_clear(bp->b_pages[i], PG_ZERO);
+ vm_page_unlock_queues();
}
bp->b_resid = 0;
} else {
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