Al Viro
fa728ded21
alloc_fdtable(): change calling conventions.
...
[ Upstream commit 1d3b4bec3ce55e0c46cdce7d0402dbd6b4af3a3d ]
First of all, tell it how many slots do we want, not which slot
is wanted. It makes one caller (dup_fd()) more straightforward
and doesn't harm another (expand_fdtable()).
Furthermore, make it return ERR_PTR() on failure rather than
returning NULL. Simplifies the callers.
Simplify the size calculation, while we are at it - note that we
always have slots_wanted greater than BITS_PER_LONG. What the
rules boil down to is
* use the smallest power of two large enough to give us
that many slots
* on 32bit skip 64 and 128 - the minimal capacity we want
there is 256 slots (i.e. 1Kb fd array).
* on 64bit don't skip anything, the minimal capacity is
128 - and we'll never be asked for 64 or less. 128 slots means
1Kb fd array, again.
* on 128bit, if that ever happens, don't skip anything -
we'll never be asked for 128 or less, so the fd array allocation
will be at least 2Kb.
Reviewed-by: Christian Brauner <brauner@kernel.org>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2025-08-28 16:21:37 +02:00
..
9p
fs/9p: drop inodes immediately on non-.L too
2024-05-17 11:43:53 +02:00
adfs
affs
affs: don't write overlarge OFS data block size fields
2025-04-10 14:29:42 +02:00
afs
afs: Fix directory format encoding struct
2025-03-13 12:42:52 +01:00
autofs
autofs: fix memory leak of waitqueues in autofs_catatonic_mode
2023-09-23 11:00:02 +02:00
befs
bfs
btrfs
btrfs: populate otime when logging an inode item
2025-08-28 16:21:35 +02:00
cachefiles
cachefiles: fix memory leak in cachefiles_add_cache()
2024-03-06 14:36:10 +00:00
ceph
ceph: fix possible integer overflow in ceph_zero_objects()
2025-07-17 18:24:50 +02:00
cifs
cifs: Fix UAF in cifs_demultiplex_thread()
2025-08-28 16:21:36 +02:00
coda
configfs
configfs: Do not override creating attribute file failure in populate_attrs()
2025-06-27 11:02:50 +01:00
cramfs
crypto
debugfs
new helper: lookup_positive_unlocked()
2023-09-23 10:59:40 +02:00
devpts
dlm
dlm: fix plock lookup when using multiple lockspaces
2023-09-23 10:59:55 +02:00
ecryptfs
ecryptfs: Fix buffer size for tag 66 packet
2024-06-16 13:28:32 +02:00
efivarfs
efivarfs: Fix error on non-existent file
2025-01-09 13:23:28 +01:00
efs
erofs
erofs: fix incorrect symlink detection in fast symlink
2025-01-09 13:23:27 +01:00
exportfs
ext2
ext2: fix datatype of block number in ext2_xattr_set2()
2023-09-23 11:00:04 +02:00
ext4
ext4: fix reserved gdt blocks handling in fsmap
2025-08-28 16:21:31 +02:00
f2fs
f2fs: fix to avoid out-of-boundary access in dnode page
2025-08-28 16:21:35 +02:00
fat
fat: fix uninitialized variable
2024-11-08 16:20:47 +01:00
freevxfs
fscache
fuse
virtiofs: add filesystem context source name check
2025-05-02 07:39:21 +02:00
gfs2
gfs2: move msleep to sleepable context
2025-06-27 11:02:50 +01:00
hfs
hfs: fix not erasing deleted b-tree node issue
2025-08-28 16:21:24 +02:00
hfsplus
hfsplus: don't use BUG_ON() in hfsplus_create_attributes_file()
2025-08-28 16:21:24 +02:00
hostfs
hpfs
hugetlbfs
mm: update memfd seal write check to include F_SEAL_WRITE
2025-08-28 16:21:36 +02:00
iomap
iomap: Set all uptodate bits for an Uptodate page
2024-03-01 13:13:35 +01:00
isofs
isofs: Verify inode mode when loading from disk
2025-08-28 16:21:15 +02:00
jbd2
jbd2: prevent softlockup in jbd2_log_do_checkpoint()
2025-08-28 16:21:31 +02:00
jffs2
jffs2: check jffs2_prealloc_raw_node_refs() result in few other places
2025-06-27 11:02:56 +01:00
jfs
jfs: upper bound check of tree index in dbAllocAG
2025-08-28 16:21:28 +02:00
kernfs
fs/kernfs/dir: obey S_ISGID
2024-02-23 08:25:03 +01:00
lockd
fs: lockd: avoid possible wrong NULL parameter
2023-09-23 10:59:48 +02:00
minix
nfs
nfs: fix UAF in direct writes
2025-08-28 16:21:37 +02:00
nfs_common
nfsd
nfsd: handle get_client_locked() failure in nfsd4_setclientid_confirm()
2025-08-28 16:21:34 +02:00
nilfs2
nilfs2: reject invalid file types when reading inodes
2025-08-28 16:21:18 +02:00
nls
fs/nls: make load_nls() take a const parameter
2023-09-23 10:59:38 +02:00
notify
fanotify: disallow mount/sb marks on kernel internal pseudo fs
2023-07-27 08:37:26 +02:00
ntfs
ocfs2
ocfs2: stop quota recovery before disabling quotas
2025-06-04 14:32:27 +02:00
omfs
openpromfs
openpromfs: finish conversion to the new mount API
2024-06-16 13:28:32 +02:00
orangefs
fs/orangefs: use snprintf() instead of sprintf()
2025-08-28 16:21:27 +02:00
overlayfs
ovl: Check for NULL d_inode() in ovl_dentry_upper()
2025-07-17 18:24:51 +02:00
proc
fix proc_sys_compare() handling of in-lookup dentries
2025-07-17 18:25:01 +02:00
pstore
pstore/ram: Fix crash when setting number of cpus to an odd number
2024-02-23 08:24:55 +01:00
qnx4
qnx6
quota
quota: flush quota_release_work upon quota writeback
2024-12-14 19:44:42 +01:00
ramfs
reiserfs
reiserfs: Check the return value from __getblk()
2023-09-23 10:59:40 +02:00
romfs
squashfs
squashfs: fix memory leak in squashfs_fill_super
2025-08-28 16:21:32 +02:00
sysfs
fs: sysfs: Fix reference leak in sysfs_break_active_protection()
2024-05-02 16:18:32 +02:00
sysv
sysv: don't call sb_bread() with pointers_lock held
2024-04-13 12:51:38 +02:00
tracefs
tracefs: Add missing lockdown check to tracefs_create_dir()
2023-09-23 11:00:06 +02:00
ubifs
ubifs: skip dumping tnc tree when zroot is null
2025-03-13 12:42:59 +01:00
udf
udf: Verify partition map count
2025-08-28 16:21:24 +02:00
ufs
unicode
Revert "unicode: Don't special case ignorable code points"
2024-12-14 19:44:55 +01:00
verity
fsverity: skip PKCS#7 parser when keyring is empty
2023-09-23 10:59:55 +02:00
xfs
xfs: don't drop errno values when we fail to ficlone the entire range
2024-12-19 18:05:03 +01:00
aio.c
fs/aio: Check IOCB_AIO_RW before the struct aio_kiocb conversion
2024-04-13 12:51:29 +02:00
anon_inodes.c
attr.c
attr: block mode changes of symlinks
2023-09-23 11:00:06 +02:00
bad_inode.c
binfmt_aout.c
binfmt_elf.c
binfmt_elf_fdpic.c
fs: binfmt_elf_efpic: don't use missing interpreter's properties
2024-09-04 13:14:54 +02:00
binfmt_em86.c
binfmt_flat.c
binfmt_flat: Fix integer overflow bug on 32 bit systems
2025-03-13 12:43:07 +01:00
binfmt_misc.c
binfmt_misc: cleanup on filesystem umount
2024-09-04 13:14:53 +02:00
binfmt_script.c
block_dev.c
block: Don't invalidate pagecache for invalid falloc modes
2024-01-08 11:29:48 +01:00
buffer.c
fs/buffer: fix use-after-free when call bh_read() helper
2025-08-28 16:21:32 +02:00
char_dev.c
compat.c
compat_binfmt_elf.c
compat_ioctl.c
lsm: new security_file_ioctl_compat() hook
2024-02-23 08:25:15 +01:00
coredump.c
coredump: hand a pidfd to the usermode coredump helper
2025-06-04 14:32:36 +02:00
d_path.c
dax.c
dcache.c
fs: better handle deep ancestor chains in is_subdir()
2024-07-27 10:38:32 +02:00
dcookies.c
direct-io.c
drop_caches.c
eventfd.c
eventfd: prevent underflow for eventfd semaphores
2023-09-23 10:59:40 +02:00
eventpoll.c
epoll: Add synchronous wakeup support for ep_poll_callback
2025-01-09 13:23:32 +01:00
exec.c
parisc: Fix stack start for ADDR_NO_RANDOMIZE personality
2024-11-08 16:20:40 +01:00
fcntl.c
fs: Fix file_set_fowner LSM hook inconsistencies
2024-11-08 16:20:34 +01:00
fhandle.c
do_sys_name_to_handle(): use kzalloc() to fix kernel-infoleak
2024-03-26 18:22:13 -04:00
file.c
alloc_fdtable(): change calling conventions.
2025-08-28 16:21:37 +02:00
file_table.c
filesystems.c
fs/filesystems: Fix potential unsigned integer underflow in fs_name()
2025-06-27 11:02:50 +01:00
fs-writeback.c
fs_context.c
fs: avoid empty option when generating legacy mount string
2023-07-27 08:37:25 +02:00
fs_parser.c
fs_pin.c
fs_struct.c
fs_types.c
fsopen.c
inode.c
vfs: fix race between evice_inodes() and find_inode()&iput()
2024-11-08 16:20:34 +01:00
internal.h
fs: Establish locking order for unrelated directories
2023-07-27 08:37:26 +02:00
io_uring.c
io_uring: fail NOP if non-zero op flags is passed in
2024-06-16 13:28:48 +02:00
ioctl.c
Kconfig
nfs: add missing selections of CONFIG_CRC32
2025-05-02 07:39:20 +02:00
Kconfig.binfmt
libfs.c
locks.c
filelock: Correct the filelock owner in fcntl_setlk/fcntl_setlk64
2024-09-04 13:15:02 +02:00
Makefile
mbcache.c
mount.h
mpage.c
namei.c
fuse: don't truncate cached, mutated symlink
2025-04-10 14:29:36 +02:00
namespace.c
use uniform permission checks for all mount propagation changes
2025-08-28 16:21:32 +02:00
no-block.c
nsfs.c
open.c
ftruncate: pass a signed offset
2024-07-05 09:08:31 +02:00
pipe.c
pnode.c
pnode.h
posix_acl.c
proc_namespace.c
read_write.c
readdir.c
select.c
fs/select: rework stack allocation hack for clang
2024-03-26 18:22:13 -04:00
seq_file.c
signalfd.c
splice.c
stack.c
stat.c
statfs.c
super.c
fs: explicitly unregister per-superblock BDIs
2024-11-08 16:20:26 +01:00
sync.c
ovl: skip overlayfs superblocks at global sync
2023-12-08 08:44:27 +01:00
timerfd.c
userfaultfd.c
utimes.c
xattr.c