Author: kib Date: Tue Apr 2 13:49:32 2019 New Revision: 345800 URL: https://svnweb.freebsd.org/changeset/base/345800
Log: tmpfs: ignore tmpfs_set_status() if mount point is read-only. In particular, this fixes atimes still changing for ro tmpfs. tmpfs_set_status() gains tmpfs_mount * argument. Tested by: pho Sponsored by: The FreeBSD Foundation MFC after: 2 weeks Differential revision: https://reviews.freebsd.org/D19737 Modified: head/sys/fs/tmpfs/tmpfs.h head/sys/fs/tmpfs/tmpfs_fifoops.c head/sys/fs/tmpfs/tmpfs_subr.c head/sys/fs/tmpfs/tmpfs_vnops.c Modified: head/sys/fs/tmpfs/tmpfs.h ============================================================================== --- head/sys/fs/tmpfs/tmpfs.h Tue Apr 2 13:41:26 2019 (r345799) +++ head/sys/fs/tmpfs/tmpfs.h Tue Apr 2 13:49:32 2019 (r345800) @@ -437,8 +437,8 @@ void tmpfs_dir_destroy(struct tmpfs_mount *, struct tm struct tmpfs_dirent * tmpfs_dir_lookup(struct tmpfs_node *node, struct tmpfs_node *f, struct componentname *cnp); -int tmpfs_dir_getdents(struct tmpfs_node *, struct uio *, int, - u_long *, int *); +int tmpfs_dir_getdents(struct tmpfs_mount *, struct tmpfs_node *, + struct uio *, int, u_long *, int *); int tmpfs_dir_whiteout_add(struct vnode *, struct componentname *); void tmpfs_dir_whiteout_remove(struct vnode *, struct componentname *); int tmpfs_reg_resize(struct vnode *, off_t, boolean_t); @@ -452,7 +452,8 @@ int tmpfs_chtimes(struct vnode *, struct vattr *, stru void tmpfs_itimes(struct vnode *, const struct timespec *, const struct timespec *); -void tmpfs_set_status(struct tmpfs_node *node, int status); +void tmpfs_set_status(struct tmpfs_mount *tm, struct tmpfs_node *node, + int status); void tmpfs_update(struct vnode *); int tmpfs_truncate(struct vnode *, off_t); struct tmpfs_dirent *tmpfs_dir_first(struct tmpfs_node *dnode, Modified: head/sys/fs/tmpfs/tmpfs_fifoops.c ============================================================================== --- head/sys/fs/tmpfs/tmpfs_fifoops.c Tue Apr 2 13:41:26 2019 (r345799) +++ head/sys/fs/tmpfs/tmpfs_fifoops.c Tue Apr 2 13:49:32 2019 (r345800) @@ -56,7 +56,8 @@ tmpfs_fifo_close(struct vop_close_args *v) struct tmpfs_node *node; node = VP_TO_TMPFS_NODE(v->a_vp); - tmpfs_set_status(node, TMPFS_NODE_ACCESSED); + tmpfs_set_status(VFS_TO_TMPFS(v->a_vp->v_mount), node, + TMPFS_NODE_ACCESSED); tmpfs_update(v->a_vp); return (fifo_specops.vop_close(v)); } Modified: head/sys/fs/tmpfs/tmpfs_subr.c ============================================================================== --- head/sys/fs/tmpfs/tmpfs_subr.c Tue Apr 2 13:41:26 2019 (r345799) +++ head/sys/fs/tmpfs/tmpfs_subr.c Tue Apr 2 13:49:32 2019 (r345800) @@ -1110,7 +1110,8 @@ tmpfs_dir_destroy(struct tmpfs_mount *tmp, struct tmpf * error happens. */ static int -tmpfs_dir_getdotdent(struct tmpfs_node *node, struct uio *uio) +tmpfs_dir_getdotdent(struct tmpfs_mount *tm, struct tmpfs_node *node, + struct uio *uio) { int error; struct dirent dent; @@ -1130,7 +1131,7 @@ tmpfs_dir_getdotdent(struct tmpfs_node *node, struct u else error = uiomove(&dent, dent.d_reclen, uio); - tmpfs_set_status(node, TMPFS_NODE_ACCESSED); + tmpfs_set_status(tm, node, TMPFS_NODE_ACCESSED); return (error); } @@ -1143,7 +1144,8 @@ tmpfs_dir_getdotdent(struct tmpfs_node *node, struct u * error happens. */ static int -tmpfs_dir_getdotdotdent(struct tmpfs_node *node, struct uio *uio) +tmpfs_dir_getdotdotdent(struct tmpfs_mount *tm, struct tmpfs_node *node, + struct uio *uio) { int error; struct dirent dent; @@ -1174,7 +1176,7 @@ tmpfs_dir_getdotdotdent(struct tmpfs_node *node, struc else error = uiomove(&dent, dent.d_reclen, uio); - tmpfs_set_status(node, TMPFS_NODE_ACCESSED); + tmpfs_set_status(tm, node, TMPFS_NODE_ACCESSED); return (error); } @@ -1187,8 +1189,8 @@ tmpfs_dir_getdotdotdent(struct tmpfs_node *node, struc * error code if another error happens. */ int -tmpfs_dir_getdents(struct tmpfs_node *node, struct uio *uio, int maxcookies, - u_long *cookies, int *ncookies) +tmpfs_dir_getdents(struct tmpfs_mount *tm, struct tmpfs_node *node, + struct uio *uio, int maxcookies, u_long *cookies, int *ncookies) { struct tmpfs_dir_cursor dc; struct tmpfs_dirent *de; @@ -1209,7 +1211,7 @@ tmpfs_dir_getdents(struct tmpfs_node *node, struct uio */ switch (uio->uio_offset) { case TMPFS_DIRCOOKIE_DOT: - error = tmpfs_dir_getdotdent(node, uio); + error = tmpfs_dir_getdotdent(tm, node, uio); if (error != 0) return (error); uio->uio_offset = TMPFS_DIRCOOKIE_DOTDOT; @@ -1217,7 +1219,7 @@ tmpfs_dir_getdents(struct tmpfs_node *node, struct uio cookies[(*ncookies)++] = off = uio->uio_offset; /* FALLTHROUGH */ case TMPFS_DIRCOOKIE_DOTDOT: - error = tmpfs_dir_getdotdotdent(node, uio); + error = tmpfs_dir_getdotdotdent(tm, node, uio); if (error != 0) return (error); de = tmpfs_dir_first(node, &dc); @@ -1319,7 +1321,7 @@ tmpfs_dir_getdents(struct tmpfs_node *node, struct uio node->tn_dir.tn_readdir_lastn = off; node->tn_dir.tn_readdir_lastp = de; - tmpfs_set_status(node, TMPFS_NODE_ACCESSED); + tmpfs_set_status(tm, node, TMPFS_NODE_ACCESSED); return error; } @@ -1774,10 +1776,10 @@ tmpfs_chtimes(struct vnode *vp, struct vattr *vap, } void -tmpfs_set_status(struct tmpfs_node *node, int status) +tmpfs_set_status(struct tmpfs_mount *tm, struct tmpfs_node *node, int status) { - if ((node->tn_status & status) == status) + if ((node->tn_status & status) == status || tm->tm_ronly) return; TMPFS_NODE_LOCK(node); node->tn_status |= status; Modified: head/sys/fs/tmpfs/tmpfs_vnops.c ============================================================================== --- head/sys/fs/tmpfs/tmpfs_vnops.c Tue Apr 2 13:41:26 2019 (r345799) +++ head/sys/fs/tmpfs/tmpfs_vnops.c Tue Apr 2 13:49:32 2019 (r345800) @@ -481,7 +481,7 @@ tmpfs_read(struct vop_read_args *v) if (uio->uio_offset < 0) return (EINVAL); node = VP_TO_TMPFS_NODE(vp); - tmpfs_set_status(node, TMPFS_NODE_ACCESSED); + tmpfs_set_status(VFS_TO_TMPFS(vp->v_mount), node, TMPFS_NODE_ACCESSED); return (uiomove_object(node->tn_reg.tn_aobj, node->tn_size, uio)); } @@ -1188,25 +1188,30 @@ tmpfs_symlink(struct vop_symlink_args *v) } static int -tmpfs_readdir(struct vop_readdir_args *v) +tmpfs_readdir(struct vop_readdir_args *va) { - struct vnode *vp = v->a_vp; - struct uio *uio = v->a_uio; - int *eofflag = v->a_eofflag; - u_long **cookies = v->a_cookies; - int *ncookies = v->a_ncookies; - - int error; - ssize_t startresid; - int maxcookies; + struct vnode *vp; + struct uio *uio; + struct tmpfs_mount *tm; struct tmpfs_node *node; + u_long **cookies; + int *eofflag, *ncookies; + ssize_t startresid; + int error, maxcookies; + vp = va->a_vp; + uio = va->a_uio; + eofflag = va->a_eofflag; + cookies = va->a_cookies; + ncookies = va->a_ncookies; + /* This operation only makes sense on directory nodes. */ if (vp->v_type != VDIR) return ENOTDIR; maxcookies = 0; node = VP_TO_TMPFS_DIR(vp); + tm = VFS_TO_TMPFS(vp->v_mount); startresid = uio->uio_resid; @@ -1220,9 +1225,9 @@ tmpfs_readdir(struct vop_readdir_args *v) } if (cookies == NULL) - error = tmpfs_dir_getdents(node, uio, 0, NULL, NULL); + error = tmpfs_dir_getdents(tm, node, uio, 0, NULL, NULL); else - error = tmpfs_dir_getdents(node, uio, maxcookies, *cookies, + error = tmpfs_dir_getdents(tm, node, uio, maxcookies, *cookies, ncookies); /* Buffer was filled without hitting EOF. */ @@ -1258,7 +1263,7 @@ tmpfs_readlink(struct vop_readlink_args *v) error = uiomove(node->tn_link, MIN(node->tn_size, uio->uio_resid), uio); - tmpfs_set_status(node, TMPFS_NODE_ACCESSED); + tmpfs_set_status(VFS_TO_TMPFS(vp->v_mount), node, TMPFS_NODE_ACCESSED); return (error); } _______________________________________________ svn-src-head@freebsd.org mailing list https://lists.freebsd.org/mailman/listinfo/svn-src-head To unsubscribe, send any mail to "svn-src-head-unsubscr...@freebsd.org"
