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author | Mateusz Guzik <mjg@FreeBSD.org> | 2020-01-31 08:37:35 +0000 |
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committer | Mateusz Guzik <mjg@FreeBSD.org> | 2020-01-31 08:37:35 +0000 |
commit | b076e113aff9d70e75e14e6c6990afd9b2dc339d (patch) | |
tree | 9a97fa3f1e10e1c77f1a2807210cbdcbeaee5646 /sys | |
parent | 1a78ac2416466ec599cc1134d8776ae8505ba2a5 (diff) | |
download | src-b076e113aff9d70e75e14e6c6990afd9b2dc339d.tar.gz src-b076e113aff9d70e75e14e6c6990afd9b2dc339d.zip |
zfs: provide macros to handle z_teardown_inactive_lock
Notes
Notes:
svn path=/head/; revision=357321
Diffstat (limited to 'sys')
4 files changed, 32 insertions, 14 deletions
diff --git a/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/sys/zfs_vfsops.h b/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/sys/zfs_vfsops.h index 8cd6360e4cf5..d32f14aa0774 100644 --- a/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/sys/zfs_vfsops.h +++ b/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/sys/zfs_vfsops.h @@ -90,6 +90,24 @@ struct zfsvfs { #endif }; +#define ZFS_TRYRLOCK_TEARDOWN_INACTIVE(zfsvfs) \ + rw_tryenter(&(zfsvfs)->z_teardown_inactive_lock, RW_READER) + +#define ZFS_RLOCK_TEARDOWN_INACTIVE(zfsvfs) \ + rw_enter(&(zfsvfs)->z_teardown_inactive_lock, RW_READER) + +#define ZFS_RUNLOCK_TEARDOWN_INACTIVE(zfsvfs) \ + rw_exit(&(zfsvfs)->z_teardown_inactive_lock) + +#define ZFS_WLOCK_TEARDOWN_INACTIVE(zfsvfs) \ + rw_enter(&(zfsvfs)->z_teardown_inactive_lock, RW_WRITER) + +#define ZFS_WUNLOCK_TEARDOWN_INACTIVE(zfsvfs) \ + rw_exit(&(zfsvfs)->z_teardown_inactive_lock) + +#define ZFS_WLOCK_TEARDOWN_INACTIVE_WLOCKED(zfsvfs) \ + RW_WRITE_HELD(&(zfsvfs)->z_teardown_inactive_lock) + /* * Normal filesystems (those not under .zfs/snapshot) have a total * file ID size limited to 12 bytes (including the length field) due to diff --git a/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/zfs_vfsops.c b/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/zfs_vfsops.c index a4bad68ded4a..10f526735943 100644 --- a/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/zfs_vfsops.c +++ b/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/zfs_vfsops.c @@ -2055,7 +2055,7 @@ zfsvfs_teardown(zfsvfs_t *zfsvfs, boolean_t unmounting) zfsvfs->z_log = NULL; } - rw_enter(&zfsvfs->z_teardown_inactive_lock, RW_WRITER); + ZFS_WLOCK_TEARDOWN_INACTIVE(zfsvfs); /* * If we are not unmounting (ie: online recv) and someone already @@ -2063,7 +2063,7 @@ zfsvfs_teardown(zfsvfs_t *zfsvfs, boolean_t unmounting) * or a reopen of z_os failed then just bail out now. */ if (!unmounting && (zfsvfs->z_unmounted || zfsvfs->z_os == NULL)) { - rw_exit(&zfsvfs->z_teardown_inactive_lock); + ZFS_WUNLOCK_TEARDOWN_INACTIVE(zfsvfs); rrm_exit(&zfsvfs->z_teardown_lock, FTAG); return (SET_ERROR(EIO)); } @@ -2091,7 +2091,7 @@ zfsvfs_teardown(zfsvfs_t *zfsvfs, boolean_t unmounting) */ if (unmounting) { zfsvfs->z_unmounted = B_TRUE; - rw_exit(&zfsvfs->z_teardown_inactive_lock); + ZFS_WUNLOCK_TEARDOWN_INACTIVE(zfsvfs); rrm_exit(&zfsvfs->z_teardown_lock, FTAG); } @@ -2437,7 +2437,7 @@ zfs_resume_fs(zfsvfs_t *zfsvfs, dsl_dataset_t *ds) znode_t *zp; ASSERT(RRM_WRITE_HELD(&zfsvfs->z_teardown_lock)); - ASSERT(RW_WRITE_HELD(&zfsvfs->z_teardown_inactive_lock)); + ASSERT(ZFS_WLOCK_TEARDOWN_INACTIVE_WLOCKED(zp->z_zfsvfs)); /* * We already own this, so just update the objset_t, as the one we @@ -2471,7 +2471,7 @@ zfs_resume_fs(zfsvfs_t *zfsvfs, dsl_dataset_t *ds) bail: /* release the VOPs */ - rw_exit(&zfsvfs->z_teardown_inactive_lock); + ZFS_WUNLOCK_TEARDOWN_INACTIVE(zfsvfs); rrm_exit(&zfsvfs->z_teardown_lock, FTAG); if (err) { diff --git a/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/zfs_vnops.c b/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/zfs_vnops.c index cd39ad56e24e..61cf98a39cad 100644 --- a/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/zfs_vnops.c +++ b/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/zfs_vnops.c @@ -4247,13 +4247,13 @@ zfs_inactive(vnode_t *vp, cred_t *cr, caller_context_t *ct) zfsvfs_t *zfsvfs = zp->z_zfsvfs; int error; - rw_enter(&zfsvfs->z_teardown_inactive_lock, RW_READER); + ZFS_RLOCK_TEARDOWN_INACTIVE(zfsvfs); if (zp->z_sa_hdl == NULL) { /* * The fs has been unmounted, or we did a * suspend/resume and this file no longer exists. */ - rw_exit(&zfsvfs->z_teardown_inactive_lock); + ZFS_RUNLOCK_TEARDOWN_INACTIVE(zfsvfs); vrecycle(vp); return; } @@ -4262,7 +4262,7 @@ zfs_inactive(vnode_t *vp, cred_t *cr, caller_context_t *ct) /* * Fast path to recycle a vnode of a removed file. */ - rw_exit(&zfsvfs->z_teardown_inactive_lock); + ZFS_RUNLOCK_TEARDOWN_INACTIVE(zfsvfs); vrecycle(vp); return; } @@ -4282,7 +4282,7 @@ zfs_inactive(vnode_t *vp, cred_t *cr, caller_context_t *ct) dmu_tx_commit(tx); } } - rw_exit(&zfsvfs->z_teardown_inactive_lock); + ZFS_RUNLOCK_TEARDOWN_INACTIVE(zfsvfs); } @@ -5333,10 +5333,10 @@ zfs_freebsd_need_inactive(ap) if (vn_need_pageq_flush(vp)) return (1); - if (!rw_tryenter(&zfsvfs->z_teardown_inactive_lock, RW_READER)) + if (!ZFS_TRYRLOCK_TEARDOWN_INACTIVE(zfsvfs)) return (1); need = (zp->z_sa_hdl == NULL || zp->z_unlinked || zp->z_atime_dirty); - rw_exit(&zfsvfs->z_teardown_inactive_lock); + ZFS_RUNLOCK_TEARDOWN_INACTIVE(zfsvfs); return (need); } @@ -5359,12 +5359,12 @@ zfs_freebsd_reclaim(ap) * zfs_znode_dmu_fini in zfsvfs_teardown during * force unmount. */ - rw_enter(&zfsvfs->z_teardown_inactive_lock, RW_READER); + ZFS_RLOCK_TEARDOWN_INACTIVE(zfsvfs); if (zp->z_sa_hdl == NULL) zfs_znode_free(zp); else zfs_zinactive(zp); - rw_exit(&zfsvfs->z_teardown_inactive_lock); + ZFS_RUNLOCK_TEARDOWN_INACTIVE(zfsvfs); vp->v_data = NULL; return (0); diff --git a/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/zfs_znode.c b/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/zfs_znode.c index 14b9298c2d34..4341be1a15ed 100644 --- a/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/zfs_znode.c +++ b/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/zfs_znode.c @@ -606,7 +606,7 @@ zfs_znode_dmu_fini(znode_t *zp) { ASSERT(MUTEX_HELD(ZFS_OBJ_MUTEX(zp->z_zfsvfs, zp->z_id)) || zp->z_unlinked || - RW_WRITE_HELD(&zp->z_zfsvfs->z_teardown_inactive_lock)); + ZFS_WLOCK_TEARDOWN_INACTIVE_WLOCKED(zp->z_zfsvfs)); sa_handle_destroy(zp->z_sa_hdl); zp->z_sa_hdl = NULL; |