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8b985bbfab
linux/fs
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Linus Torvalds de5cb0dcb7 Merge branch 'address-masking' 
Merge user access fast validation using address masking.

This allows architectures to optionally use a data dependent address
masking model instead of a conditional branch for validating user
accesses.  That avoids the Spectre-v1 speculation barriers.

Right now only x86-64 takes advantage of this, and not all architectures
will be able to do it.  It requires a guard region between the user and
kernel address spaces (so that you can't overflow from one to the
other), and an easy way to generate a guaranteed-to-fault address for
invalid user pointers.

Also note that this currently assumes that there is no difference
between user read and write accesses.  If extended to architectures like
powerpc, we'll also need to separate out the user read-vs-write cases.

* address-masking:
  x86: make the masked_user_access_begin() macro use its argument only once
  x86: do the user address masking outside the user access area
  x86: support user address masking instead of non-speculative conditional
2024-09-22 11:19:35 -07:00
..
9p netfs: Speed up buffered reading 2024-09-12 12:20:41 +02:00
adfs fs: Convert aops->write_begin to take a folio 2024-08-07 11:33:21 +02:00
affs affs-for-6.12-tag 2024-09-16 13:07:59 +02:00
afs netfs: Speed up buffered reading 2024-09-12 12:20:41 +02:00
autofs autofs: add per dentry expire timeout 2024-08-30 08:22:36 +02:00
bcachefs In the v6.12 scheduler development cycle we had 63 commits from 18 contributors: 2024-09-19 15:55:58 +02:00
befs befs: Convert befs_symlink_read_folio() to use folio_end_read() 2024-05-31 12:31:39 +02:00
bfs fs: Convert aops->write_begin to take a folio 2024-08-07 11:33:21 +02:00
btrfs for-6.12/block-20240913 2024-09-16 13:33:06 +02:00
cachefiles cachefiles, netfs: Fix write to partial block at EOF 2024-09-12 12:20:41 +02:00
ceph vfs-6.12.netfs 2024-09-16 12:13:31 +02:00
coda coda: use param->file for FSCONFIG_SET_FD 2024-08-19 13:45:03 +02:00
configfs fs/configfs: Add a callback to determine attribute visibility 2024-06-17 20:42:57 +02:00
cramfs vfs-6.11.module.description 2024-07-15 11:14:59 -07:00
crypto The usual shower of singleton fixes and minor series all over MM, 2024-05-19 09:21:03 -07:00
debugfs debugfs show actual source in /proc/mounts 2024-08-30 08:22:37 +02:00
devpts
dlm dlm: add missing -ENOMEM if alloc_workqueue() fails 2024-08-12 15:16:18 -05:00
ecryptfs fs: Convert aops->write_begin to take a folio 2024-08-07 11:33:21 +02:00
efivarfs efivarfs: Convert to new uid/gid option parsing helpers 2024-07-02 06:21:18 +02:00
efs vfs-6.11.module.description 2024-07-15 11:14:59 -07:00
erofs erofs: reject inodes with negative i_size 2024-09-12 23:00:09 +08:00
exfat fs: Convert aops->write_begin to take a folio 2024-08-07 11:33:21 +02:00
exportfs fhandle: relax open_by_handle_at() permission checks 2024-05-28 15:57:23 +02:00
ext2 vfs-6.12.file 2024-09-16 09:14:02 +02:00
ext4 Lots of cleanups and bug fixes this cycle, primarily in the block 2024-09-20 19:26:45 -07:00
f2fs fs: Convert aops->write_begin to take a folio 2024-08-07 11:33:21 +02:00
fat fs: Convert aops->write_begin to take a folio 2024-08-07 11:33:21 +02:00
freevxfs
fuse vfs-6.12.folio 2024-09-16 08:54:30 +02:00
gfs2 iomap: add a private argument for iomap_file_buffered_write 2024-09-03 15:01:23 +02:00
hfs fs: Convert aops->write_begin to take a folio 2024-08-07 11:33:21 +02:00
hfsplus fs: Convert aops->write_begin to take a folio 2024-08-07 11:33:21 +02:00
hostfs fs: Convert aops->write_begin to take a folio 2024-08-07 11:33:21 +02:00
hpfs fs: Convert aops->write_begin to take a folio 2024-08-07 11:33:21 +02:00
hugetlbfs fs: Convert aops->write_begin to take a folio 2024-08-07 11:33:21 +02:00
iomap vfs-6.12.blocksize 2024-09-20 17:53:17 -07:00
isofs \n 2024-07-17 13:11:42 -07:00
jbd2 jbd2: remove unneeded check of ret in jbd2_fc_get_buf 2024-08-26 23:49:15 -04:00
jffs2 jffs2: Use a folio in jffs2_garbage_collect_dnode() 2024-08-19 13:40:00 +02:00
jfs A few fixes for jfs 2024-09-19 06:38:43 +02:00
kernfs kernfs: mount: Remove unnecessary ‘NULL’ values from knparent 2024-05-04 19:02:39 +02:00
lockd lockd: Use *-y instead of *-objs in Makefile 2024-07-08 14:10:03 -04:00
minix buffer: Convert __block_write_begin() to take a folio 2024-08-07 11:33:36 +02:00
netfs vfs-6.12.netfs 2024-09-16 12:13:31 +02:00
nfs Many singleton patches - please see the various changelogs for details. 2024-09-21 08:20:50 -07:00
nfs_common fs: nfs: add missing MODULE_DESCRIPTION() macros 2024-07-08 13:47:24 -04:00
nfsd nfsd-6.11 fixes: 2024-09-01 06:55:47 +12:00
nilfs2 Many singleton patches - please see the various changelogs for details. 2024-09-21 08:20:50 -07:00
nls fs: nls: add missing MODULE_DESCRIPTION() macros 2024-06-03 16:37:07 +02:00
notify file: reclaim 24 bytes from f_owner 2024-08-28 13:05:39 +02:00
ntfs3 fs: Convert aops->write_begin to take a folio 2024-08-07 11:33:21 +02:00
ocfs2 Many singleton patches - please see the various changelogs for details. 2024-09-21 08:20:50 -07:00
omfs fs: Convert aops->write_begin to take a folio 2024-08-07 11:33:21 +02:00
openpromfs openpromfs: add missing MODULE_DESCRIPTION() macro 2024-06-20 09:46:01 +02:00
orangefs orangefs: Constify struct kobj_type 2024-09-20 19:34:00 -07:00
overlayfs overlayfs updates for 6.12 2024-09-19 06:33:18 +02:00
proc Many singleton patches - please see the various changelogs for details. 2024-09-21 08:20:50 -07:00
pstore drm next for 6.12-rc1 2024-09-19 10:18:15 +02:00
qnx4 qnx4: add MODULE_DESCRIPTION() 2024-05-28 11:52:53 +02:00
qnx6 qnx6: Convert directory handling to use kmap_local 2024-08-07 11:31:56 +02:00
quota sysctl: treewide: constify the ctl_table argument of proc_handlers 2024-07-24 20:59:29 +02:00
ramfs mm: switch mm->get_unmapped_area() to a flag 2024-04-25 20:56:25 -07:00
reiserfs buffer: Convert __block_write_begin() to take a folio 2024-08-07 11:33:36 +02:00
romfs romfs: fix romfs_read_folio() 2024-08-21 22:32:58 +02:00
smb 24 smb3 client fixes, about half cleanup, and SMB3.1.1 compression improvements, and also fixes for special file types with sfu mount option 2024-09-19 06:53:40 +02:00
squashfs Many singleton patches - please see the various changelogs for details. 2024-09-21 08:20:50 -07:00
sysfs Merge 6.9-rc5 into driver-core-next 2024-04-23 13:27:43 +02:00
sysv buffer: Convert __block_write_begin() to take a folio 2024-08-07 11:33:36 +02:00
tests execve: Move KUnit tests to tests/ subdirectory 2024-07-22 18:25:47 -07:00
tracefs eventfs: Use list_del_rcu() for SRCU protected list variable 2024-09-05 10:18:48 -04:00
ubifs vfs-6.12.file 2024-09-16 09:14:02 +02:00
udf vfs-6.12.file 2024-09-16 09:14:02 +02:00
ufs vfs-6.12.file 2024-09-16 09:14:02 +02:00
unicode unicode: add MODULE_DESCRIPTION() macros 2024-06-20 19:30:02 -04:00
vboxsf fs: Convert aops->write_end to take a folio 2024-08-07 11:32:02 +02:00
verity fsverity: expose verified fsverity built-in signatures to LSMs 2024-08-20 14:03:18 -04:00
xfs ALong with the usual shower of singleton patches, notable patch series in 2024-09-21 07:29:05 -07:00
zonefs iomap: add a private argument for iomap_file_buffered_write 2024-09-03 15:01:23 +02:00
aio.c fs/aio: Fix __percpu annotation of *cpu pointer in struct kioctx 2024-08-19 13:45:03 +02:00
anon_inodes.c fs: Create anon_inode_getfile_fmode() 2024-04-26 10:33:05 +02:00
attr.c nfsd-6.11 fixes: 2024-08-29 06:20:44 +12:00
backing-file.c backing-file: convert to using fops->splice_write 2024-08-23 13:08:31 +02:00
bad_inode.c
binfmt_elf_fdpic.c binfmt_elf_fdpic: fix AUXV size calculation when ELF_HWCAP2 is defined 2024-08-26 13:00:38 -07:00
binfmt_elf.c execve updates for v6.12-rc1 2024-09-18 11:53:31 +02:00
binfmt_flat.c binfmt_flat: Fix corruption when not offsetting data start 2024-08-09 20:19:00 -07:00
binfmt_misc.c vfs-6.11.module.description 2024-07-15 11:14:59 -07:00
binfmt_script.c fs: binfmt: add missing MODULE_DESCRIPTION() macros 2024-05-28 12:06:51 +02:00
bpf_fs_kfuncs.c bpf: Add kfunc bpf_get_dentry_xattr() to read xattr from dentry 2024-08-07 11:26:54 -07:00
buffer.c vfs-6.12.folio 2024-09-16 08:54:30 +02:00
char_dev.c
compat_binfmt_elf.c
coredump.c binfmt_elf: Dump smaller VMAs first in ELF cores 2024-08-12 11:23:25 -07:00
d_path.c
dax.c dax: use huge_zero_folio 2024-04-25 20:56:20 -07:00
dcache.c vfs-6.12.misc 2024-09-16 08:35:09 +02:00
direct-io.c fs/direct-io: Remove linux/prefetch.h include 2024-08-19 13:45:02 +02:00
drop_caches.c sysctl: treewide: constify the ctl_table argument of proc_handlers 2024-07-24 20:59:29 +02:00
eventfd.c
eventpoll.c eventpoll: Annotate data-race of busy_poll_usecs 2024-08-30 08:22:34 +02:00
exec.c ALong with the usual shower of singleton patches, notable patch series in 2024-09-21 07:29:05 -07:00
fcntl.c lsm/stable-6.12 PR 20240911 2024-09-16 18:19:47 +02:00
fhandle.c fhandle: expose u64 mount id to name_to_handle_at(2) 2024-09-05 11:39:17 +02:00
file_table.c slab updates for 6.12 2024-09-18 08:53:53 +02:00
file.c file: remove outdated comment after close_fd() 2024-08-30 08:22:33 +02:00
filesystems.c
fs_context.c
fs_parser.c fs_parse: add uid & gid option option parsing helpers 2024-07-02 06:20:49 +02:00
fs_pin.c
fs_struct.c
fs_types.c
fs-writeback.c inode: port __I_SYNC to var event 2024-08-30 08:22:39 +02:00
fsopen.c vfs: retire user_path_at_empty and drop empty arg from getname_flags 2024-06-05 17:03:57 +02:00
init.c
inode.c fs/inode: Prevent dump_mapping() accessing invalid dentry.d_name.name 2024-08-30 08:22:41 +02:00
internal.h file: reclaim 24 bytes from f_owner 2024-08-28 13:05:39 +02:00
ioctl.c fs/ioctl: Add a comment to keep the logic in sync with LSM policies 2024-05-13 06:58:35 +02:00
Kconfig mm/hugetlb: enforce that PMD PT sharing has split PMD PT locks 2024-09-01 20:25:51 -07:00
Kconfig.binfmt exec: Add KUnit test for bprm_stack_limits() 2024-06-19 13:13:55 -07:00
kernel_read_file.c
libfs.c vfs-6.12.folio 2024-09-16 08:54:30 +02:00
locks.c file: reclaim 24 bytes from f_owner 2024-08-28 13:05:39 +02:00
Makefile bpf: introduce new VFS based BPF kfuncs 2024-08-06 09:01:41 -07:00
mbcache.c
mnt_idmapping.c mnt_idmapping: Use kmemdup_array instead of kmemdup for multiple allocation 2024-08-30 08:22:41 +02:00
mount.h vfs-6.12.mount 2024-09-16 11:15:26 +02:00
mpage.c buffer: Remove calls to set and clear the folio error flag 2024-05-31 12:31:43 +02:00
namei.c vfs-6.12.folio 2024-09-16 08:54:30 +02:00
namespace.c vfs-6.12.mount 2024-09-16 11:15:26 +02:00
nsfs.c nsfs: iterate through mount namespaces 2024-08-09 12:46:59 +02:00
open.c fs: sort out the fallocate mode vs flag mess 2024-08-28 16:53:57 +02:00
pidfs.c pidfs: handle kernels without namespaces cleanly 2024-07-24 10:53:13 +02:00
pipe.c vfs-6.12.file 2024-09-16 09:14:02 +02:00
pnode.c
pnode.h
posix_acl.c fs: Use in_group_or_capable() helper to simplify the code 2024-08-30 08:22:37 +02:00
proc_namespace.c fs: rename show_mnt_opts -> show_vfsmnt_opts 2024-06-28 14:36:43 +02:00
read_write.c vfs-6.12.file 2024-09-16 09:14:02 +02:00
readdir.c readdir: Add missing quote in macro comment 2024-06-03 15:49:26 +02:00
remap_range.c vfs: export remap and write check helpers 2024-04-15 14:54:13 -07:00
select.c Merge branch 'address-masking' 2024-09-22 11:19:35 -07:00
seq_file.c seq_file: Simplify __seq_puts() 2024-05-02 16:28:20 +02:00
signalfd.c signal: Remove task argument from dequeue_signal() 2024-07-29 21:57:35 +02:00
splice.c remove call_{read,write}_iter() functions 2024-04-15 16:03:25 -04:00
stack.c
stat.c for-6.11/block-20240710 2024-07-15 14:20:22 -07:00
statfs.c
super.c vfs-6.12.misc 2024-09-16 08:35:09 +02:00
sync.c
sysctls.c
timerfd.c
userfaultfd.c mm/hugetlb: remove hugetlb_follow_page_mask() leftover 2024-09-01 20:25:57 -07:00
utimes.c
xattr.c vfs: Fix potential circular locking through setxattr() and removexattr() 2024-07-24 10:53:14 +02:00