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Share-lock a vnode where possible.

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This commit is contained in:
Pawel Jakub Dawidek 2007-05-02 01:03:10 +00:00
parent 5bec66402b
commit 57504dcfaf
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=169199
6 changed files with 8 additions and 8 deletions
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4
sys/cddl/compat/opensolaris/kern/opensolaris_kobj.c
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@ -123,7 +123,7 @@ kobj_get_filesize_vnode(struct _buf *file, uint64_t *size)
struct vattr va;
int error;
vn_lock(vp, LK_EXCLUSIVE | LK_RETRY, td);
vn_lock(vp, LK_SHARED | LK_RETRY, td);
error = VOP_GETATTR(vp, &va, td->td_ucred, td);
VOP_UNLOCK(vp, 0, td);
if (error == 0)
@ -176,7 +176,7 @@ kobj_read_file_vnode(struct _buf *file, char *buf, unsigned size, unsigned off)
auio.uio_resid = size;
auio.uio_td = td;
vn_lock(vp, LK_EXCLUSIVE | LK_RETRY, td);
vn_lock(vp, LK_SHARED | LK_RETRY, td);
error = VOP_READ(vp, &auio, IO_UNIT | IO_SYNC, td->td_ucred);
VOP_UNLOCK(vp, 0, td);
return (error != 0 ? -1 : size - auio.uio_resid);

2
sys/cddl/compat/opensolaris/kern/opensolaris_vfs.c
View File

@ -187,7 +187,7 @@ domount(kthread_t *td, vnode_t *vp, const char *fstype, char *fspath,
/*
* Allocate and initialize the filesystem.
*/
vn_lock(vp, LK_EXCLUSIVE | LK_RETRY, td);
vn_lock(vp, LK_SHARED | LK_RETRY, td);
mp = vfs_mount_alloc(vp, vfsp, fspath, td);
VOP_UNLOCK(vp, 0, td);

2
sys/cddl/contrib/opensolaris/uts/common/fs/zfs/zfs_ctldir.c
View File

@ -934,7 +934,7 @@ zfsctl_traverse_begin(vnode_t **vpp, kthread_t *td)
return (ENOENT);
err = traverse(vpp);
if (err == 0)
vn_lock(*vpp, LK_EXCLUSIVE | LK_RETRY, td);
vn_lock(*vpp, LK_SHARED | LK_RETRY, td);
return (err);
}

4
sys/compat/opensolaris/kern/opensolaris_kobj.c
View File

@ -123,7 +123,7 @@ kobj_get_filesize_vnode(struct _buf *file, uint64_t *size)
struct vattr va;
int error;
vn_lock(vp, LK_EXCLUSIVE | LK_RETRY, td);
vn_lock(vp, LK_SHARED | LK_RETRY, td);
error = VOP_GETATTR(vp, &va, td->td_ucred, td);
VOP_UNLOCK(vp, 0, td);
if (error == 0)
@ -176,7 +176,7 @@ kobj_read_file_vnode(struct _buf *file, char *buf, unsigned size, unsigned off)
auio.uio_resid = size;
auio.uio_td = td;
vn_lock(vp, LK_EXCLUSIVE | LK_RETRY, td);
vn_lock(vp, LK_SHARED | LK_RETRY, td);
error = VOP_READ(vp, &auio, IO_UNIT | IO_SYNC, td->td_ucred);
VOP_UNLOCK(vp, 0, td);
return (error != 0 ? -1 : size - auio.uio_resid);

2
sys/compat/opensolaris/kern/opensolaris_vfs.c
View File

@ -187,7 +187,7 @@ domount(kthread_t *td, vnode_t *vp, const char *fstype, char *fspath,
/*
* Allocate and initialize the filesystem.
*/
vn_lock(vp, LK_EXCLUSIVE | LK_RETRY, td);
vn_lock(vp, LK_SHARED | LK_RETRY, td);
mp = vfs_mount_alloc(vp, vfsp, fspath, td);
VOP_UNLOCK(vp, 0, td);

2
sys/contrib/opensolaris/uts/common/fs/zfs/zfs_ctldir.c
View File

@ -934,7 +934,7 @@ zfsctl_traverse_begin(vnode_t **vpp, kthread_t *td)
return (ENOENT);
err = traverse(vpp);
if (err == 0)
vn_lock(*vpp, LK_EXCLUSIVE | LK_RETRY, td);
vn_lock(*vpp, LK_SHARED | LK_RETRY, td);
return (err);
}