kernel/linux.git/fs/ntfs/inode.h, branch v6.2

fs: make helpers idmap mount aware

2021-01-24T13:27:20+00:00

Extend some inode methods with an additional user namespace argument. A filesystem that is aware of idmapped mounts will receive the user namespace the mount has been marked with. This can be used for additional permission checking and also to enable filesystems to translate between uids and gids if they need to. We have implemented all relevant helpers in earlier patches. As requested we simply extend the exisiting inode method instead of introducing new ones. This is a little more code churn but it's mostly mechanical and doesnt't leave us with additional inode methods. Link: https://lore.kernel.org/r/20210121131959.646623-25-christian.brauner@ubuntu.com Cc: Christoph Hellwig Cc: David Howells Cc: Al Viro Cc: linux-fsdevel@vger.kernel.org Reviewed-by: Christoph Hellwig Signed-off-by: Christian Brauner

ntfs: fix ntfs_test_inode and ntfs_init_locked_inode function type

2020-08-07T18:33:21+00:00

Clang's Control Flow Integrity (CFI) is a security mechanism that can help prevent JOP chains, deployed extensively in downstream kernels used in Android. Its deployment is hindered by mismatches in function signatures. For this case, we make callbacks match their intended function signature, and cast parameters within them rather than casting the callback when passed as a parameter. When running `mount -t ntfs ...` we observe the following trace: Call trace: __cfi_check_fail+0x1c/0x24 name_to_dev_t+0x0/0x404 iget5_locked+0x594/0x5e8 ntfs_fill_super+0xbfc/0x43ec mount_bdev+0x30c/0x3cc ntfs_mount+0x18/0x24 mount_fs+0x1b0/0x380 vfs_kern_mount+0x90/0x398 do_mount+0x5d8/0x1a10 SyS_mount+0x108/0x144 el0_svc_naked+0x34/0x38 Signed-off-by: Luca Stefani Signed-off-by: Andrew Morton Tested-by: freak07 Reviewed-by: Nick Desaulniers Reviewed-by: Nathan Chancellor Acked-by: Anton Altaparmakov Link: http://lkml.kernel.org/r/20200718112513.533800-1-luca.stefani.ge1@gmail.com Signed-off-by: Linus Torvalds

treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 96

2019-05-24T15:37:53+00:00

Based on 1 normalized pattern(s): this program include file is free software you can redistribute it and or modify it under the terms of the gnu general public license as published by the free software foundation either version 2 of the license or at your option any later version this program include file 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 in the main directory of the linux [ntfs] distribution in the file copying if not write to the free software foundation inc 59 temple place suite 330 boston ma 02111 1307 usa extracted by the scancode license scanner the SPDX license identifier GPL-2.0-or-later has been chosen to replace the boilerplate/reference in 43 file(s). Signed-off-by: Thomas Gleixner Reviewed-by: Richard Fontana Reviewed-by: Allison Randal Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190520075212.517001706@linutronix.de Signed-off-by: Greg Kroah-Hartman

ntfs: switch to ->free_inode()

2019-05-02T02:43:26+00:00

move the synchronous stuff from ->destroy_inode() to ->evict_inode(), turn the RCU-delayed part into ->free_inode() Signed-off-by: Al Viro

fs: cleanup slight list_entry abuse

2015-06-23T22:01:59+00:00

list_entry is just a wrapper for container_of, but it is arguably wrong (and slightly confusing) to use it when the pointed-to struct member is not a struct list_head. Use container_of directly instead. Signed-off-by: Rasmus Villemoes Signed-off-by: Al Viro

ntfs: drop vmtruncate

2012-12-20T23:40:55+00:00

Removed vmtruncate Signed-off-by: Marco Stornelli Reviewed-by: Anton Altaparmakov Signed-off-by: Al Viro

vfs: switch ->show_options() to struct dentry *

2012-01-07T04:19:54+00:00

Signed-off-by: Al Viro

atomic: use

2011-07-26T23:49:47+00:00

This allows us to move duplicated code in (atomic_inc_not_zero() for now) to Signed-off-by: Arun Sharma Reviewed-by: Eric Dumazet Cc: Ingo Molnar Cc: David Miller Cc: Eric Dumazet Acked-by: Mike Frysinger Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds

convert remaining ->clear_inode() to ->evict_inode()

2010-08-09T20:48:37+00:00

Signed-off-by: Al Viro

pass writeback_control to ->write_inode

2010-03-05T18:25:52+00:00

This gives the filesystem more information about the writeback that is happening. Trond requested this for the NFS unstable write handling, and other filesystems might benefit from this too by beeing able to distinguish between the different callers in more detail. Signed-off-by: Christoph Hellwig Signed-off-by: Al Viro