diff options
| author | kib <kib@FreeBSD.org> | 2016-09-22 08:56:54 +0000 |
|---|---|---|
| committer | kib <kib@FreeBSD.org> | 2016-09-22 08:56:54 +0000 |
| commit | 924101bf21d10b51836d7a3b03634c22c4959183 (patch) | |
| tree | b90887f5eae8f4a49803cd8ddf1529356c13b5de /sys/ufs/ffs | |
| parent | 2db21703b6fa0a8620e01220b5a3981323e5babb (diff) | |
| download | FreeBSD-src-924101bf21d10b51836d7a3b03634c22c4959183.zip FreeBSD-src-924101bf21d10b51836d7a3b03634c22c4959183.tar.gz | |
MFC r305592:
Partially lift suspension when ffs_reload() finished with cgs and
going to re-read inodes.
Diffstat (limited to 'sys/ufs/ffs')
| -rw-r--r-- | sys/ufs/ffs/ffs_extern.h | 3 | ||||
| -rw-r--r-- | sys/ufs/ffs/ffs_suspend.c | 2 | ||||
| -rw-r--r-- | sys/ufs/ffs/ffs_vfsops.c | 16 |
3 files changed, 16 insertions, 5 deletions
diff --git a/sys/ufs/ffs/ffs_extern.h b/sys/ufs/ffs/ffs_extern.h index 203bc66..56f5cd8 100644 --- a/sys/ufs/ffs/ffs_extern.h +++ b/sys/ufs/ffs/ffs_extern.h @@ -106,6 +106,9 @@ void ffs_susp_uninitialize(void); #define FFSV_FORCEINSMQ 0x0001 +#define FFSR_FORCE 0x0001 +#define FFSR_UNSUSPEND 0x0002 + extern struct vop_vector ffs_vnodeops1; extern struct vop_vector ffs_fifoops1; extern struct vop_vector ffs_vnodeops2; diff --git a/sys/ufs/ffs/ffs_suspend.c b/sys/ufs/ffs/ffs_suspend.c index 450282c..926dba3 100644 --- a/sys/ufs/ffs/ffs_suspend.c +++ b/sys/ufs/ffs/ffs_suspend.c @@ -235,7 +235,7 @@ ffs_susp_dtor(void *data) KASSERT((mp->mnt_kern_flag & MNTK_SUSPEND) != 0, ("MNTK_SUSPEND not set")); - error = ffs_reload(mp, curthread, 1); + error = ffs_reload(mp, curthread, FFSR_FORCE | FFSR_UNSUSPEND); if (error != 0) panic("failed to unsuspend writes on %s", fs->fs_fsmnt); diff --git a/sys/ufs/ffs/ffs_vfsops.c b/sys/ufs/ffs/ffs_vfsops.c index d644b73..b28b742 100644 --- a/sys/ufs/ffs/ffs_vfsops.c +++ b/sys/ufs/ffs/ffs_vfsops.c @@ -573,11 +573,13 @@ ffs_cmount(struct mntarg *ma, void *data, uint64_t flags) * 2) re-read superblock from disk. * 3) re-read summary information from disk. * 4) invalidate all inactive vnodes. - * 5) invalidate all cached file data. - * 6) re-read inode data for all active vnodes. + * 5) clear MNTK_SUSPEND2 and MNTK_SUSPENDED flags, allowing secondary + * writers, if requested. + * 6) invalidate all cached file data. + * 7) re-read inode data for all active vnodes. */ int -ffs_reload(struct mount *mp, struct thread *td, int force) +ffs_reload(struct mount *mp, struct thread *td, int flags) { struct vnode *vp, *mvp, *devvp; struct inode *ip; @@ -592,7 +594,7 @@ ffs_reload(struct mount *mp, struct thread *td, int force) ump = VFSTOUFS(mp); MNT_ILOCK(mp); - if ((mp->mnt_flag & MNT_RDONLY) == 0 && force == 0) { + if ((mp->mnt_flag & MNT_RDONLY) == 0 && (flags & FFSR_FORCE) == 0) { MNT_IUNLOCK(mp); return (EINVAL); } @@ -682,6 +684,12 @@ ffs_reload(struct mount *mp, struct thread *td, int force) size = fs->fs_ncg * sizeof(u_int8_t); fs->fs_contigdirs = (u_int8_t *)space; bzero(fs->fs_contigdirs, size); + if ((flags & FFSR_UNSUSPEND) != 0) { + MNT_ILOCK(mp); + mp->mnt_kern_flag &= ~(MNTK_SUSPENDED | MNTK_SUSPEND2); + wakeup(&mp->mnt_flag); + MNT_IUNLOCK(mp); + } loop: MNT_VNODE_FOREACH_ALL(vp, mp, mvp) { |
