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Garbage-collect vn_write_suspend_wait().

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Suggested and reviewed by:	tegge
Tested by:	pho
MFC after:	1 month
This commit is contained in:
Konstantin Belousov 2008-09-16 11:09:26 +00:00
parent 90446e360c
commit bdb8094763
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=183071
3 changed files with 2 additions and 62 deletions
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12
sys/gnu/fs/ext2fs/ext2_inode.c
View file

@ -481,7 +481,6 @@ ext2_inactive(ap)
if (ip->i_mode == 0)
goto out;
if (ip->i_nlink <= 0) {
(void) vn_write_suspend_wait(vp, NULL, V_WAIT);
error = ext2_truncate(vp, (off_t)0, 0, NOCRED, td);
ip->i_rdev = 0;
mode = ip->i_mode;
@ -489,15 +488,8 @@ ext2_inactive(ap)
ip->i_flag |= IN_CHANGE | IN_UPDATE;
ext2_vfree(vp, ip->i_number, mode);
}
if (ip->i_flag & (IN_ACCESS | IN_CHANGE | IN_MODIFIED | IN_UPDATE)) {
if ((ip->i_flag & (IN_CHANGE | IN_UPDATE | IN_MODIFIED)) == 0 &&
vn_write_suspend_wait(vp, NULL, V_NOWAIT)) {
ip->i_flag &= ~IN_ACCESS;
} else {
(void) vn_write_suspend_wait(vp, NULL, V_WAIT);
ext2_update(vp, 0);
}
}
if (ip->i_flag & (IN_ACCESS | IN_CHANGE | IN_MODIFIED | IN_UPDATE))
ext2_update(vp, 0);
out:
/*
* If we are done with the inode, reclaim it

50
sys/kern/vfs_vnops.c
View file

@ -966,56 +966,6 @@ vn_start_write(vp, mpp, flags)
return (error);
}
/*
* Secondary suspension. Used by operations such as vop_inactive
* routines that are needed by the higher level functions. These
* are allowed to proceed until all the higher level functions have
* completed (indicated by mnt_writeopcount dropping to zero). At that
* time, these operations are halted until the suspension is over.
*/
int
vn_write_suspend_wait(vp, mp, flags)
struct vnode *vp;
struct mount *mp;
int flags;
{
int error;
if (vp != NULL) {
if ((error = VOP_GETWRITEMOUNT(vp, &mp)) != 0) {
if (error != EOPNOTSUPP)
return (error);
return (0);
}
}
/*
* If we are not suspended or have not yet reached suspended
* mode, then let the operation proceed.
*/
if (mp == NULL)
return (0);
MNT_ILOCK(mp);
if (vp == NULL)
MNT_REF(mp);
if ((mp->mnt_kern_flag & MNTK_SUSPENDED) == 0) {
MNT_REL(mp);
MNT_IUNLOCK(mp);
return (0);
}
if (flags & V_NOWAIT) {
MNT_REL(mp);
MNT_IUNLOCK(mp);
return (EWOULDBLOCK);
}
/*
* Wait for the suspension to finish.
*/
error = msleep(&mp->mnt_flag, MNT_MTX(mp),
(PUSER - 1) | (flags & PCATCH) | PDROP, "suspfs", 0);
vfs_rel(mp);
return (error);
}
/*
* Secondary suspension. Used by operations such as vop_inactive
* routines that are needed by the higher level functions. These

2
sys/sys/vnode.h
View file

@ -629,8 +629,6 @@ int vn_stat(struct vnode *vp, struct stat *sb, struct ucred *active_cred,
int vn_start_write(struct vnode *vp, struct mount **mpp, int flags);
int vn_start_secondary_write(struct vnode *vp, struct mount **mpp,
int flags);
int vn_write_suspend_wait(struct vnode *vp, struct mount *mp,
int flags);
int vn_writechk(struct vnode *vp);
int vn_extattr_get(struct vnode *vp, int ioflg, int attrnamespace,
const char *attrname, int *buflen, char *buf, struct thread *td);