Arnd Bergmann a0bccba5f5 fs/select: rework stack allocation hack for clang ... [ Upstream commit ddb9fd7a544088ed70eccbb9f85e9cc9952131c1 ] A while ago, we changed the way that select() and poll() preallocate a temporary buffer just under the size of the static warning limit of 1024 bytes, as clang was frequently going slightly above that limit. The warnings have recently returned and I took another look. As it turns out, clang is not actually inherently worse at reserving stack space, it just happens to inline do_select() into core_sys_select(), while gcc never inlines it. Annotate do_select() to never be inlined and in turn remove the special case for the allocation size. This should give the same behavior for both clang and gcc all the time and once more avoids those warnings. Fixes: ad312f95d4 ("fs/select: avoid clang stack usage warning") Signed-off-by: Arnd Bergmann <arnd@arndb.de> Link: https://lore.kernel.org/r/20240216202352.2492798-1-arnd@kernel.org Reviewed-by: Kees Cook <keescook@chromium.org> Reviewed-by: Andi Kleen <ak@linux.intel.com> Reviewed-by: Jan Kara <jack@suse.cz> Signed-off-by: Christian Brauner <brauner@kernel.org> Signed-off-by: Sasha Levin <sashal@kernel.org>		2024-03-26 18:21:47 -04:00
..
9p	9p: missing chunk of "fs/9p: Don't update file type when updating file attributes"	2022-06-22 14:13:12 +02:00
adfs
affs	affs: initialize fsdata in affs_truncate()	2023-02-01 08:23:11 +01:00
afs	afs: Fix endless loop in directory parsing	2024-03-06 14:37:49 +00:00
autofs	autofs: fix memory leak of waitqueues in autofs_catatonic_mode	2023-09-23 11:01:04 +02:00
befs
bfs
btrfs	btrfs: dev-replace: properly validate device names	2024-03-06 14:37:49 +00:00
cachefiles	cachefiles: fix memory leak in cachefiles_add_cache()	2024-03-06 14:37:50 +00:00
ceph	ceph: prevent use-after-free in encode_cap_msg()	2024-02-23 08:42:29 +01:00
cifs	cifs: add a warning when the in-flight count goes negative	2024-03-01 13:16:46 +01:00
coda	coda: Avoid partial allocation of sig_inputArgs	2023-03-11 16:39:51 +01:00
configfs	Revert "configfs: fix a race in configfs_lookup()"	2023-09-21 09:45:15 +02:00
cramfs
crypto	fscrypt: fix keyring memory leak on mount failure	2022-11-10 18:14:25 +01:00
debugfs	debugfs: fix automount d_fsdata usage	2024-01-25 14:37:36 -08:00
devpts	fsnotify: fix fsnotify hooks in pseudo filesystems	2022-02-01 17:25:39 +01:00
dlm	dlm: fix plock lookup when using multiple lockspaces	2023-09-19 12:20:22 +02:00
ecryptfs	ecryptfs: Reject casefold directory inodes	2024-02-23 08:42:05 +01:00
efivarfs	efivarfs: force RO when remounting if SetVariable is not supported	2024-01-25 14:37:40 -08:00
efs
erofs	erofs: fix lz4 inplace decompression	2024-03-01 13:16:48 +01:00
exfat	exfat: support handle zero-size directory	2023-11-28 16:54:52 +00:00
exportfs
ext2	ext2: fix datatype of block number in ext2_xattr_set2()	2023-09-23 11:01:07 +02:00
ext4	ext4: convert to exclusive lock while inserting delalloc extents	2024-03-15 10:48:21 -04:00
f2fs	f2fs: fix write pointers on zoned device after roll forward	2024-02-23 08:42:11 +01:00
fat	fat: add ratelimit to fat*_ent_bread()	2022-06-09 10:20:58 +02:00
freevxfs
fscache	fscache: Fix cookie key hashing	2021-09-18 13:40:15 +02:00
fuse	fuse: dax: set fc->dax to NULL in fuse_dax_conn_free()	2023-12-20 15:44:30 +01:00
gfs2	gfs2: Fix kernel NULL pointer dereference in gfs2_rgrp_dump	2024-01-25 14:37:42 -08:00
hfs	hfs: fix missing hfs_bnode_get() in __hfs_bnode_create	2023-03-11 16:39:55 +01:00
hfsplus	fs: hfsplus: remove WARN_ON() from hfsplus_cat_{read,write}_inode()	2023-05-30 12:57:47 +01:00
hostfs
hpfs
hugetlbfs	mm: hugetlb pages should not be reserved by shmat() if SHM_NORESERVE	2024-03-15 10:48:22 -04:00
iomap	xfs: use current->journal_info for detecting transaction recursion	2022-07-07 17:52:19 +02:00
isofs	isofs: Fix out of bound access for corrupted isofs image	2021-11-12 14:58:33 +01:00
jbd2	jbd2: Fix wrongly judgement for buffer head removing while doing checkpoint	2024-03-01 13:16:47 +01:00
jffs2	jffs2: reduce stack usage in jffs2_build_xattr_subsystem()	2023-07-27 08:44:13 +02:00
jfs	jfs: fix array-index-out-of-bounds in diNewExt	2024-02-23 08:42:04 +01:00
kernfs	fs/kernfs/dir: obey S_ISGID	2024-02-23 08:42:14 +01:00
lockd	fs: lockd: avoid possible wrong NULL parameter	2023-09-19 12:20:15 +02:00
minix	minix: fix bug when opening a file with O_DIRECT	2022-04-13 21:01:01 +02:00
nfs	NFSv4.1/pnfs: Ensure we handle the error NFS4ERR_RETURNCONFLICT	2024-01-25 14:37:43 -08:00
nfs_common
nfsd	nfsd: lock_rename() needs both directories to live on the same fs	2023-12-08 08:46:10 +01:00
nilfs2	nilfs2: replace WARN_ONs for invalid DAT metadata block requests	2024-02-23 08:42:32 +01:00
nls	fs/nls: make load_nls() take a const parameter	2023-09-19 12:20:04 +02:00
notify	fanotify: disallow mount/sb marks on kernel internal pseudo fs	2023-07-27 08:44:15 +02:00
ntfs	ntfs: check overflow when iterating ATTR_RECORDs	2022-11-25 17:45:57 +01:00
ocfs2	fs: ocfs2: namei: check return value of ocfs2_add_entry()	2023-09-19 12:20:09 +02:00
omfs
openpromfs
orangefs	orangefs: Fix kmemleak in orangefs_{kernel,client}_debug_init()	2023-01-14 10:16:20 +01:00
overlayfs	ima: detect changes to the backing overlay file	2023-11-28 16:54:57 +00:00
proc	watchdog: move softlockup_panic back to early_param	2023-11-28 16:54:56 +00:00
pstore	pstore/ram: Fix crash when setting number of cpus to an odd number	2024-02-23 08:42:04 +01:00
qnx4	qnx4: work around gcc false positive warning bug	2021-09-30 10:11:08 +02:00
qnx6
quota	quota: explicitly forbid quota files from being encrypted	2023-11-28 16:54:58 +00:00
ramfs	shmem: use ramfs_kill_sb() for kill_sb method of ramfs-based tmpfs	2023-07-27 08:44:13 +02:00
reiserfs	reiserfs: Check the return value from __getblk()	2023-09-19 12:20:06 +02:00
romfs
squashfs	revert "squashfs: harden sanity check in squashfs_read_xattr_id_table"	2023-02-22 12:55:56 +01:00
sysfs
sysv	fs/sysv: Null check to prevent null-ptr-deref bug	2023-08-11 11:57:53 +02:00
tracefs	tracefs: Add missing lockdown check to tracefs_create_dir()	2023-09-23 11:01:10 +02:00
ubifs	ubifs: ubifs_symlink: Fix memleak of inode->i_link in error path	2024-02-23 08:41:54 +01:00
udf	udf: initialize newblock to 0	2023-09-19 12:20:23 +02:00
ufs
unicode
vboxsf	vboxfs: fix broken legacy mount signature checking	2021-10-17 10:43:33 +02:00
verity	fsverity: skip PKCS#7 parser when keyring is empty	2023-09-19 12:20:22 +02:00
xfs	xfs: verify buffer contents when we skip log replay	2023-06-14 11:09:59 +02:00
zonefs	zonefs: Improve error handling	2024-03-01 13:16:43 +01:00
aio.c	fs/aio: Restrict kiocb_set_cancel_fn() to I/O submitted via libaio	2024-03-01 13:16:51 +01:00
anon_inodes.c
attr.c	attr: block mode changes of symlinks	2023-09-23 11:01:09 +02:00
bad_inode.c
binfmt_aout.c
binfmt_elf_fdpic.c	fs: binfmt_elf_efpic: fix personality for ELF-FDPIC	2023-10-10 21:53:35 +02:00
binfmt_elf.c	fs/binfmt_elf: Fix memory leak in load_elf_binary()	2022-11-03 23:57:49 +09:00
binfmt_em86.c
binfmt_flat.c	binfmt_flat: do not stop relocating GOT entries prematurely on riscv	2022-06-09 10:20:47 +02:00
binfmt_misc.c	binfmt_misc: fix shift-out-of-bounds in check_special_flags	2023-01-14 10:16:13 +01:00
binfmt_script.c
block_dev.c	block: Don't invalidate pagecache for invalid falloc modes	2024-01-15 18:48:03 +01:00
buffer.c	mm: fs: initialize fsdata passed to write_begin/write_end interface	2022-11-25 17:45:56 +01:00
char_dev.c	chardev: fix error handling in cdev_device_add()	2023-01-14 10:15:59 +01:00
compat_binfmt_elf.c
coredump.c	coredump: Limit what can interrupt coredumps	2023-01-04 11:39:22 +01:00
d_path.c
dax.c	dax: fix cache flush on PMD-mapped pages	2022-06-09 10:21:16 +02:00
dcache.c	fast_dput(): handle underflows gracefully	2024-02-23 08:42:10 +01:00
dcookies.c
direct-io.c
drop_caches.c
eventfd.c	eventfd: prevent underflow for eventfd semaphores	2023-09-19 12:20:06 +02:00
eventpoll.c	epoll: ep_autoremove_wake_function should use list_del_init_careful	2023-06-21 15:45:37 +02:00
exec.c	exec: Fix error handling in begin_new_exec()	2024-02-23 08:41:58 +01:00
fcntl.c	fcntl: fix potential deadlocks for &fown_struct.lock	2022-10-30 09:41:18 +01:00
fhandle.c	do_sys_name_to_handle(): use kzalloc() to fix kernel-infoleak	2024-03-26 18:21:47 -04:00
file_table.c	SUNRPC: Ensure we flush any closed sockets before xs_xprt_free()	2022-05-18 10:23:48 +02:00
file.c	file: reinstate f_pos locking optimization for regular files	2023-08-11 11:57:53 +02:00
filesystems.c
fs_context.c	fs: avoid empty option when generating legacy mount string	2023-07-27 08:44:13 +02:00
fs_parser.c
fs_pin.c
fs_struct.c
fs_types.c
fs-writeback.c	writeback: fix call of incorrect macro	2023-05-17 11:48:10 +02:00
fsopen.c
init.c
inode.c	fs: add ctime accessors infrastructure	2023-12-08 08:46:15 +01:00
internal.h	fs: Establish locking order for unrelated directories	2023-07-27 08:44:13 +02:00
ioctl.c	lsm: new security_file_ioctl_compat() hook	2024-02-23 08:41:53 +01:00
Kconfig
Kconfig.binfmt
kernel_read_file.c	vfs: check fd has read access in kernel_read_file_from_fd()	2021-10-27 09:56:51 +02:00
libfs.c	libfs: add DEFINE_SIMPLE_ATTRIBUTE_SIGNED for signed value	2023-01-14 10:15:19 +01:00
locks.c	locks: fix KASAN: use-after-free in trace_event_raw_event_filelock_lock	2023-09-23 11:01:04 +02:00
Makefile	io_uring: import 5.15-stable io_uring	2023-01-04 11:39:23 +01:00
mbcache.c	mbcache: Avoid nesting of cache->c_list_lock under bit locks	2023-01-14 10:16:50 +01:00
mount.h
mpage.c
namei.c	rename(): fix the locking of subdirectories	2024-02-23 08:41:54 +01:00
namespace.c	fs: indicate request originates from old mount API	2024-01-25 14:37:42 -08:00
no-block.c
nsfs.c
open.c	open: make RESOLVE_CACHED correctly test for O_TMPFILE	2023-08-11 11:57:53 +02:00
pipe.c	pipe: wakeup wr_wait after setting max_usage	2024-02-23 08:42:00 +01:00
pnode.c	pnode: terminate at peers of source	2023-01-14 10:16:27 +01:00
pnode.h
posix_acl.c
proc_namespace.c
read_write.c	vfs: fix copy_file_range() averts filesystem freeze protection	2022-12-19 12:27:30 +01:00
readdir.c
remap_range.c	fs/remap: constrain dedupe of EOF blocks	2022-07-21 21:20:01 +02:00
select.c	fs/select: rework stack allocation hack for clang	2024-03-26 18:21:47 -04:00
seq_file.c	seq_file: disallow extremely large seq buffer allocations	2021-07-20 16:05:59 +02:00
signalfd.c	io_uring: disable polling pollfree files	2022-09-05 10:28:58 +02:00
splice.c	Revert "fs: check FMODE_LSEEK to control internal pipe splicing"	2022-10-17 17:26:07 +02:00
stack.c
stat.c	stat: fix inconsistency between struct stat and struct compat_stat	2022-04-27 13:53:54 +02:00
statfs.c	statfs: enforce statfs[64] structure initialization	2023-05-30 12:57:55 +01:00
super.c	fs: Protect reconfiguration of sb read-write from racing writes	2023-08-11 11:57:54 +02:00
sync.c	vfs: make sync_filesystem return errors from ->sync_fs	2022-08-31 17:15:14 +02:00
timerfd.c
userfaultfd.c	userfaultfd: open userfaultfds with O_RDONLY	2022-10-26 13:25:17 +02:00
utimes.c
xattr.c	fs: don't audit the capability check in simple_xattr_list()	2023-01-14 10:15:16 +01:00