Guillaume Knispel 5ae87e79ec poll/select: avoid arithmetic overflow in __estimate_accuracy() ... __estimate_accuracy() was prone to integer overflow, for example if *tv == {2147, 483648000} on a 32 bit computer (or even for delays as small as {429, 500000000} if the task is niced). Because the result was already forced between 0 and 100ms, the effect of the overflow was not too problematic, but the use of the hrtimer range feature was not optimal in overflow cases. This patch ensures that there can not be an integer overflow in this function. Signed-off-by: Guillaume Knispel <gknispel@proformatique.com> Cc: Alexander Viro <viro@zeniv.linux.org.uk> Cc: Arjan van de Ven <arjan@infradead.org> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Heiko Carstens <heiko.carstens@de.ibm.com> Cc: Tejun Heo <tj@kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>		2009-09-23 07:39:27 -07:00
..
9p
adfs
affs
afs	const: make file_lock_operations const	2009-09-22 07:17:25 -07:00
autofs	trivial: remove unnecessary semicolons	2009-09-21 15:14:58 +02:00
autofs4	autofs4 - fix missed case when changing to use struct path	2009-08-31 17:44:05 -10:00
befs	const: mark remaining super_operations const	2009-09-22 07:17:24 -07:00
bfs
btrfs	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial	2009-09-22 07:51:45 -07:00
cachefiles
cifs	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial	2009-09-22 07:51:45 -07:00
coda
configfs	writeback: add name to backing_dev_info	2009-09-11 09:20:26 +02:00
cramfs
debugfs
devpts
dlm	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/teigland/dlm	2009-09-18 09:19:10 -07:00
ecryptfs	const: mark remaining address_space_operations const	2009-09-22 07:17:24 -07:00
efs
exofs
exportfs
ext2	const: make block_device_operations const	2009-09-22 07:17:25 -07:00
ext3	const: make struct super_block::s_qcop const	2009-09-22 07:17:24 -07:00
ext4	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial	2009-09-22 07:51:45 -07:00
fat	fat: Opencode sync_page_range_nolock()	2009-09-14 17:08:17 +02:00
freevxfs
fscache
fuse	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mszeredi/fuse	2009-09-18 09:23:03 -07:00
gfs2	trivial: fix typo "to to" in multiple files	2009-09-21 15:14:55 +02:00
hfs
hfsplus
hostfs
hpfs
hppfs
hugetlbfs	hugetlbfs: allow the creation of files suitable for MAP_PRIVATE on the vfs internal mount	2009-09-22 07:17:41 -07:00
isofs
jbd	jbd: Annotate transaction start also for journal_restart()	2009-09-16 17:44:10 +02:00
jbd2	writeback: get rid of wbc->for_writepages	2009-09-16 15:16:18 +02:00
jffs2	const: mark remaining export_operations const	2009-09-22 07:17:24 -07:00
jfs	jffs2/jfs/xfs: switch over to 'check_acl' rather than 'permission()'	2009-09-08 11:09:04 -07:00
lockd	Merge branch 'for-2.6.32' of git://linux-nfs.org/~bfields/linux	2009-09-22 07:54:33 -07:00
minix
ncpfs
nfs	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial	2009-09-22 07:51:45 -07:00
nfs_common
nfsd	Merge branch 'for-2.6.32' of git://linux-nfs.org/~bfields/linux	2009-09-22 07:54:33 -07:00
nilfs2	const: mark remaining inode_operations as const	2009-09-22 07:17:24 -07:00
nls
notify	inotify: update the group mask on mark addition	2009-08-28 12:51:14 -04:00
ntfs	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial	2009-09-22 07:51:45 -07:00
ocfs2	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial	2009-09-22 07:51:45 -07:00
omfs	const: mark remaining inode_operations as const	2009-09-22 07:17:24 -07:00
openpromfs
partitions	const: make block_device_operations const	2009-09-22 07:17:25 -07:00
proc	oom: fix oom_adjust_write() input sanity check	2009-09-22 07:17:39 -07:00
qnx4
quota	const: make struct super_block::s_qcop const	2009-09-22 07:17:24 -07:00
ramfs	writeback: add name to backing_dev_info	2009-09-11 09:20:26 +02:00
reiserfs	const: make struct super_block::s_qcop const	2009-09-22 07:17:24 -07:00
romfs	const: mark remaining inode_operations as const	2009-09-22 07:17:24 -07:00
smbfs	smbfs: read buffer overflow	2009-09-23 07:39:27 -07:00
squashfs	const: mark remaining super_operations const	2009-09-22 07:17:24 -07:00
sysfs	Merge branch 'writeback' of git://git.kernel.dk/linux-2.6-block	2009-09-11 09:17:05 -07:00
sysv
ubifs	const: mark remaining address_space_operations const	2009-09-22 07:17:24 -07:00
udf	udf: Fix possible corruption when close races with write	2009-09-14 19:13:01 +02:00
ufs
xfs	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial	2009-09-22 07:51:45 -07:00
aio.c	mm: move use_mm/unuse_mm from aio.c to mm/	2009-09-22 07:17:42 -07:00
anon_inodes.c
attr.c
bad_inode.c
binfmt_aout.c
binfmt_elf.c	mm: add get_dump_page	2009-09-22 07:17:40 -07:00
binfmt_elf_fdpic.c	mm: add get_dump_page	2009-09-22 07:17:40 -07:00
binfmt_em86.c
binfmt_flat.c
binfmt_misc.c
binfmt_script.c
binfmt_som.c
bio-integrity.c
bio.c
block_dev.c	const: make block_device_operations const	2009-09-22 07:17:25 -07:00
buffer.c	writeback: switch to per-bdi threads for flushing data	2009-09-11 09:20:25 +02:00
char_dev.c	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound-2.6	2009-09-11 09:19:35 -07:00
compat.c	exec: do not sleep in TASK_TRACED under ->cred_guard_mutex	2009-09-05 11:30:42 -07:00
compat_binfmt_elf.c
compat_ioctl.c
dcache.c
dcookies.c
direct-io.c
drop_caches.c
eventfd.c
eventpoll.c
exec.c	perf: Do the big rename: Performance Counters -> Performance Events	2009-09-21 14:28:04 +02:00
fcntl.c
fifo.c
file.c
file_table.c
filesystems.c
fs-writeback.c	writeback: fix possible bdi writeback refcounting problem	2009-09-16 15:18:53 +02:00
fs_struct.c
generic_acl.c
inode.c	const: mark remaining inode_operations as const	2009-09-22 07:17:24 -07:00
internal.h
ioctl.c
ioprio.c
Kconfig	tmpfs: depend on shmem	2009-09-22 07:17:41 -07:00
Kconfig.binfmt
libfs.c
locks.c	const: make lock_manager_operations const	2009-09-22 07:17:25 -07:00
Makefile
mbcache.c
mpage.c
namei.c	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/security-testing-2.6	2009-09-11 08:55:49 -07:00
namespace.c
nfsctl.c
no-block.c
open.c	CRED: Add some configurable debugging [try #6]	2009-09-02 21:29:01 +10:00
pipe.c
pnode.c
pnode.h
posix_acl.c
read_write.c
read_write.h
readdir.c
select.c	poll/select: avoid arithmetic overflow in __estimate_accuracy()	2009-09-23 07:39:27 -07:00
seq_file.c
signalfd.c
splice.c	Merge branch 'for-2.6.32' of git://git.kernel.dk/linux-2.6-block	2009-09-14 17:55:15 -07:00
stack.c
stat.c
super.c	const: mark remaining super_operations const	2009-09-22 07:17:24 -07:00
sync.c	fs: Assign bdi in super_block	2009-09-16 15:18:51 +02:00
timerfd.c
utimes.c
xattr.c	VFS: Factor out part of vfs_setxattr so it can be called from the SELinux hook for inode_setsecctx.	2009-09-10 10:11:22 +10:00
xattr_acl.c