Date: Sat, 31 Jan 2015 12:27:19 +0000 (UTC) From: Konstantin Belousov <kib@FreeBSD.org> To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org Subject: svn commit: r277969 - head/sys/fs/tmpfs Message-ID: <201501311227.t0VCRJQb032862@svn.freebsd.org>
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Author: kib Date: Sat Jan 31 12:27:18 2015 New Revision: 277969 URL: https://svnweb.freebsd.org/changeset/base/277969 Log: POSIX states that write(2) "shall mark for update the last data modification and last file status change timestamps of the file". Currently, tmpfs only modifies ctime when file was extended. Since r277828 followed tmpfs_write(), mmaped writes also do not modify ctime. Fix this, by updating both ctime and mtime for writes to tmpfs files. Sponsored by: The FreeBSD Foundation MFC after: 2 weeks Modified: head/sys/fs/tmpfs/tmpfs_subr.c head/sys/fs/tmpfs/tmpfs_vnops.c Modified: head/sys/fs/tmpfs/tmpfs_subr.c ============================================================================== --- head/sys/fs/tmpfs/tmpfs_subr.c Sat Jan 31 12:17:07 2015 (r277968) +++ head/sys/fs/tmpfs/tmpfs_subr.c Sat Jan 31 12:27:18 2015 (r277969) @@ -1434,7 +1434,8 @@ tmpfs_check_mtime(struct vnode *vp) if ((obj->flags & OBJ_TMPFS_DIRTY) != 0) { obj->flags &= ~OBJ_TMPFS_DIRTY; node = VP_TO_TMPFS_NODE(vp); - node->tn_status |= TMPFS_NODE_MODIFIED; + node->tn_status |= TMPFS_NODE_MODIFIED | + TMPFS_NODE_CHANGED; } VM_OBJECT_WUNLOCK(obj); } Modified: head/sys/fs/tmpfs/tmpfs_vnops.c ============================================================================== --- head/sys/fs/tmpfs/tmpfs_vnops.c Sat Jan 31 12:17:07 2015 (r277968) +++ head/sys/fs/tmpfs/tmpfs_vnops.c Sat Jan 31 12:27:18 2015 (r277969) @@ -483,7 +483,7 @@ tmpfs_write(struct vop_write_args *v) error = uiomove_object(node->tn_reg.tn_aobj, node->tn_size, uio); node->tn_status |= TMPFS_NODE_ACCESSED | TMPFS_NODE_MODIFIED | - (extended ? TMPFS_NODE_CHANGED : 0); + TMPFS_NODE_CHANGED; if (node->tn_mode & (S_ISUID | S_ISGID)) { if (priv_check_cred(v->a_cred, PRIV_VFS_RETAINSUGID, 0)) node->tn_mode &= ~(S_ISUID | S_ISGID);
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