wireguard-linux/fs/ubifs/misc.h, branch jd/unified-crypt-queue

treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 336

2019-06-05T15:37:07Z

Based on 1 normalized pattern(s): this program is free software you can redistribute it and or modify it under the terms of the gnu general public license version 2 as published by the free software foundation this program is distributed in the hope that it will be useful but without any warranty without even the implied warranty of merchantability or fitness for a particular purpose see the gnu general public license for more details you should have received a copy of the gnu general public license along with this program if not write to the free software foundation inc 51 franklin st fifth floor boston ma 02110 1301 usa extracted by the scancode license scanner the SPDX license identifier GPL-2.0-only has been chosen to replace the boilerplate/reference in 246 file(s). Signed-off-by: Thomas Gleixner Reviewed-by: Alexios Zavras Reviewed-by: Allison Randal Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190530000436.674189849@linutronix.de Signed-off-by: Greg Kroah-Hartman

ubifs: Limit number of xattrs per inode

2019-05-07T19:58:31Z

Since we have to write one deletion inode per xattr into the journal, limit the max number of xattrs. In theory UBIFS supported up to 65535 xattrs per inode. But this never worked correctly, expect no powercuts happened. Now we support only as many xattrs as we can store in 50% of a LEB. Even for tiny flashes this allows dozens of xattrs per inode, which is for an embedded filesystem still fine. In case someone has existing inodes with much more xattrs, it is still possible to delete them. UBIFS will fall back to an non-atomic deletion mode. Reported-by: Stefan Agner Fixes: 1e51764a3c2ac ("UBIFS: add new flash file system") Signed-off-by: Richard Weinberger

ubifs: authentication: Add hashes to index nodes

2018-10-23T11:48:39Z

With this patch the hashes over the index nodes stored in the tree node cache are written to flash and are checked when read back from flash. The hash of the root index node is stored in the master node. During journal replay the hashes are regenerated from the read nodes and stored in the tree node cache. This means the nodes must previously be authenticated by other means. This is done in a later patch. Signed-off-by: Sascha Hauer Signed-off-by: Richard Weinberger

ubifs: Allow setting assert action as mount parameter

2018-08-14T22:25:21Z

Expose our three options to userspace. Signed-off-by: Richard Weinberger

ubifs: Pass struct ubifs_info to ubifs_assert()

2018-08-14T22:25:21Z

This allows us to have more context in ubifs_assert() and take different actions depending on the configuration. Signed-off-by: Richard Weinberger

fs: ubifs: replace CURRENT_TIME_SEC with current_time

2017-05-09T00:15:15Z

CURRENT_TIME_SEC is not y2038 safe. current_time() will be transitioned to use 64 bit time along with vfs in a separate patch. There is no plan to transition CURRENT_TIME_SEC to use y2038 safe time interfaces. current_time() returns timestamps according to the granularities set in the inode's super_block. The granularity check to call current_fs_time() or CURRENT_TIME_SEC is not required. Use current_time() directly to update inode timestamp. Use timespec_trunc during file system creation, before the first inode is created. Link: http://lkml.kernel.org/r/1491613030-11599-9-git-send-email-deepa.kernel@gmail.com Signed-off-by: Deepa Dinamani Reviewed-by: Arnd Bergmann Cc: Richard Weinberger Cc: Artem Bityutskiy Cc: Adrian Hunter Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds

fs/ubifs: remove unnecessary new_valid_dev check

2015-11-06T22:26:48Z

As currently new_valid_dev always returns 1, so new_valid_dev check is not needed, remove it. Signed-off-by: Yaowei Bai Reviewed-by: Richard Weinberger Signed-off-by: Artem Bityutskiy Signed-off-by: Richard Weinberger

UBIFS: introduce more I/O helpers

2011-07-04T07:54:33Z

Introduce the following I/O helper functions: 'ubifs_leb_read()', 'ubifs_leb_write()', 'ubifs_leb_change()', 'ubifs_leb_unmap()', 'ubifs_leb_map()', 'ubifs_is_mapped(). The idea is to wrap all UBI I/O functions in order to encapsulate various assertions and error path handling (error message, stack dump, switching to R/O mode). And there are some other benefits of this which will be used in the following patches. This patch does not switch whole UBIFS to use these functions yet. Signed-off-by: Artem Bityutskiy

UBIFS: harmonize znode flag helpers

2011-07-04T07:54:27Z

We have 3 znode flags: cow, obsolete, dirty. For the last flag we have a 'ubifs_zn_dirty()' helper function, but for the other 2 flags we use 'test_bit()' directly. This patch makes the situation more consistent and introduces helpers for the other 2 flags: 'ubifs_zn_cow()' and 'ubifs_zn_obsolete()'. Signed-off-by: Artem Bityutskiy

UBIFS: share the next_log_lnum helper

2011-05-16T11:12:12Z

We'll need to use the 'next_log_lnum()' helper function from log.c in the fixup code, so let's move it to misc.h. IOW, this is a preparation to the following free space fixup changes. Signed-off-by: Artem Bityutskiy