diff options
| author | jeff <jeff@FreeBSD.org> | 2003-10-05 06:43:03 +0000 |
|---|---|---|
| committer | jeff <jeff@FreeBSD.org> | 2003-10-05 06:43:03 +0000 |
| commit | 29b3b781c2d4719782f46f1de18aadd6aeac1b87 (patch) | |
| tree | 7dbe283484bf6ca737b531492fd34aaebf310dd3 /sys/gnu | |
| parent | 2afc542330b163fbeee6747befdc667df1d6e5ca (diff) | |
| download | FreeBSD-src-29b3b781c2d4719782f46f1de18aadd6aeac1b87.zip FreeBSD-src-29b3b781c2d4719782f46f1de18aadd6aeac1b87.tar.gz | |
- File systems that wish to inspect the vnode contents or their private
v_data field before calling vget/vn_lock must check VI_XLOCK manually to
be sure that v_data is still valid. Implement this check in two places
here.
Diffstat (limited to 'sys/gnu')
| -rw-r--r-- | sys/gnu/ext2fs/ext2_vfsops.c | 8 | ||||
| -rw-r--r-- | sys/gnu/fs/ext2fs/ext2_vfsops.c | 8 |
2 files changed, 16 insertions, 0 deletions
diff --git a/sys/gnu/ext2fs/ext2_vfsops.c b/sys/gnu/ext2fs/ext2_vfsops.c index b8b15be..c9544c1 100644 --- a/sys/gnu/ext2fs/ext2_vfsops.c +++ b/sys/gnu/ext2fs/ext2_vfsops.c @@ -577,6 +577,10 @@ loop: } nvp = TAILQ_NEXT(vp, v_nmntvnodes); VI_LOCK(vp); + if (vp->v_iflag & VI_XLOCK) { + VI_UNLOCK(vp); + continue; + } mtx_unlock(&mntvnode_mtx); /* * Step 4: invalidate all inactive vnodes. @@ -906,6 +910,10 @@ loop: goto loop; nvp = TAILQ_NEXT(vp, v_nmntvnodes); VI_LOCK(vp); + if (vp->v_iflag & VI_XLOCK) { + VI_UNLOCK(vp); + continue; + } mtx_unlock(&mntvnode_mtx); ip = VTOI(vp); if (vp->v_type == VNON || diff --git a/sys/gnu/fs/ext2fs/ext2_vfsops.c b/sys/gnu/fs/ext2fs/ext2_vfsops.c index b8b15be..c9544c1 100644 --- a/sys/gnu/fs/ext2fs/ext2_vfsops.c +++ b/sys/gnu/fs/ext2fs/ext2_vfsops.c @@ -577,6 +577,10 @@ loop: } nvp = TAILQ_NEXT(vp, v_nmntvnodes); VI_LOCK(vp); + if (vp->v_iflag & VI_XLOCK) { + VI_UNLOCK(vp); + continue; + } mtx_unlock(&mntvnode_mtx); /* * Step 4: invalidate all inactive vnodes. @@ -906,6 +910,10 @@ loop: goto loop; nvp = TAILQ_NEXT(vp, v_nmntvnodes); VI_LOCK(vp); + if (vp->v_iflag & VI_XLOCK) { + VI_UNLOCK(vp); + continue; + } mtx_unlock(&mntvnode_mtx); ip = VTOI(vp); if (vp->v_type == VNON || |
