Author: mdf
Date: Sat Mar 30 15:09:04 2013
New Revision: 248933
URL: http://svnweb.freebsd.org/changeset/base/248933
Log:
Use a shared lock for VOP_GETEXTATTR, as it is a read-like operation.
MFC after: 1 week
Modified:
head/sys/kern/vfs_extattr.c
head/sys/kern/vfs_vnops.c
Modified: head/sys/kern/vfs_extattr.c
==============================================================================
--- head/sys/kern/vfs_extattr.c Sat Mar 30 13:30:27 2013 (r248932)
+++ head/sys/kern/vfs_extattr.c Sat Mar 30 15:09:04 2013 (r248933)
@@ -326,7 +326,7 @@ extattr_get_vp(struct vnode *vp, int att
size_t size, *sizep;
int error;
- vn_lock(vp, LK_EXCLUSIVE | LK_RETRY);
+ vn_lock(vp, LK_SHARED | LK_RETRY);
/*
* Slightly unusual semantics: if the user provides a NULL data
Modified: head/sys/kern/vfs_vnops.c
==============================================================================
--- head/sys/kern/vfs_vnops.c Sat Mar 30 13:30:27 2013 (r248932)
+++ head/sys/kern/vfs_vnops.c Sat Mar 30 15:09:04 2013 (r248933)
@@ -1758,7 +1758,7 @@ vn_extattr_get(struct vnode *vp, int iof
auio.uio_resid = *buflen;
if ((ioflg & IO_NODELOCKED) == 0)
- vn_lock(vp, LK_EXCLUSIVE | LK_RETRY);
+ vn_lock(vp, LK_SHARED | LK_RETRY);
ASSERT_VOP_LOCKED(vp, "IO_NODELOCKED with no vp lock held");
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