Konstantin Khlebnikov e9aba5158a tty: rework pty count limiting ... After adding devpts multiple-insrances sysctl kernel.pty.max limit pty count for each devpts instance independently, while kernel.pty.nr shows total pty count. This patch restores sysctl kernel.pty.max as global limit (4096 by default), adds pty reseve for main devpts (mounted without "newinstance" argument), and new sysctl to tune it: kernel.pty.reserve (1024 by default) Also it adds devpts mount option "max=%d" to limit pty count for each devpts instance independently. (by default NR_UNIX98_PTY_MAX == 2^20) Thus devpts instances in containers cannot eat up all available pty even if we didn't set any limits, while with "max" argument we can adjust limits more precisely. Plus, now open("/dev/ptmx") return -ENOSPC in case lack of pty indexes, this is more informative than -EIO. Signed-off-by: Konstantin Khlebnikov <khlebnikov@openvz.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>		2012-01-24 14:01:01 -08:00
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9p	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ericvh/v9fs	2012-01-10 15:09:01 -08:00
adfs	vfs: switch ->show_options() to struct dentry *	2012-01-06 23:19:54 -05:00
affs	affs: propagate umode_t	2012-01-03 22:55:04 -05:00
afs	switch ->create() to umode_t	2012-01-03 22:54:53 -05:00
autofs4	autofs4 - fix deal with autofs4_write races	2012-01-13 08:30:49 -08:00
befs	vfs: fix the stupidity with i_dentry in inode destructors	2012-01-03 22:52:40 -05:00
bfs	switch ->create() to umode_t	2012-01-03 22:54:53 -05:00
btrfs	Merge branch 'btrfs' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs	2012-01-17 15:52:51 -08:00
cachefiles	fs: move code out of buffer.c	2012-01-03 22:54:07 -05:00
ceph	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/sage/ceph-client	2012-01-13 10:29:21 -08:00
cifs	Merge branch 'for-linus2' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs	2012-01-08 12:19:57 -08:00
coda	coda: switch coda_cnode_make() to sane API as well, clean coda_lookup()	2012-01-10 11:13:16 -05:00
configfs	configfs: convert to umode_t	2012-01-03 22:54:57 -05:00
cramfs	Merge branches 'vfsmount-guts', 'umode_t' and 'partitions' into Z	2012-01-06 23:15:54 -05:00
debugfs	Merge branch 'for-linus2' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs	2012-01-08 12:19:57 -08:00
devpts	tty: rework pty count limiting	2012-01-24 14:01:01 -08:00
dlm	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/teigland/linux-dlm	2012-01-10 14:55:55 -08:00
ecryptfs	vfs: switch ->show_options() to struct dentry *	2012-01-06 23:19:54 -05:00
efs	vfs: fix the stupidity with i_dentry in inode destructors	2012-01-03 22:52:40 -05:00
exofs	Merge branch 'for-linus' of git://git.open-osd.org/linux-open-osd	2012-01-09 12:51:01 -08:00
exportfs	…
ext2	Merge branch 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs	2012-01-09 12:51:21 -08:00
ext3	Merge branch 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs	2012-01-09 12:51:21 -08:00
ext4	Merge branch 'for_linus' into for_linus_merged	2012-01-10 11:54:07 -05:00
fat	Merge branch 'usb-next' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb	2012-01-09 12:09:47 -08:00
freevxfs	fs: propagate umode_t, misc bits	2012-01-03 22:55:10 -05:00
fscache	…
fuse	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mszeredi/fuse	2012-01-12 12:39:21 -08:00
gfs2	GFS2: Fix nlink setting on inode creation	2012-01-11 12:35:05 +00:00
hfs	vfs: switch ->show_options() to struct dentry *	2012-01-06 23:19:54 -05:00
hfsplus	hfsplus: creation of hidden dir on mount can fail	2012-01-10 17:48:52 -05:00
hostfs	vfs: switch ->show_options() to struct dentry *	2012-01-06 23:19:54 -05:00
hpfs	switch ->mknod() to umode_t	2012-01-03 22:54:54 -05:00
hppfs	vfs: for usbfs, etc. internal vfsmounts ->mnt_sb->s_root == ->mnt_root	2012-01-03 22:52:41 -05:00
hugetlbfs	mm: compaction: introduce sync-light migration for use by compaction	2012-01-12 20:13:09 -08:00
isofs	isofs: inode leak on mount failure	2012-01-09 10:48:11 -05:00
jbd	Merge branch 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs	2012-01-09 12:51:21 -08:00
jbd2	Merge branch 'for_linus' into for_linus_merged	2012-01-10 11:54:07 -05:00
jffs2	MTD pull for 3.3	2012-01-10 13:45:22 -08:00
jfs	Merge branch 'pm-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm	2012-01-08 13:10:57 -08:00
lockd	module_param: make bool parameters really bool (drivers & misc)	2012-01-13 09:32:20 +10:30
logfs	MTD pull for 3.3	2012-01-10 13:45:22 -08:00
minix	Merge branch 'for-linus2' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs	2012-01-08 12:19:57 -08:00
ncpfs	vfs: switch ->show_options() to struct dentry *	2012-01-06 23:19:54 -05:00
nfs	NFS client bugfixes and cleanups for Linux 3.3 (pull 2)	2012-01-16 15:08:13 -08:00
nfs_common	…
nfsd	Merge branch 'for-3.3' of git://linux-nfs.org/~bfields/linux	2012-01-14 12:26:41 -08:00
nilfs2	Merge branch 'pm-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm	2012-01-08 13:10:57 -08:00
nls	…
notify	fsnotify: don't BUG in fsnotify_destroy_mark()	2012-01-14 18:01:42 -08:00
ntfs	module_param: avoid bool abuse, add bint for special cases.	2012-01-13 09:32:17 +10:30
ocfs2	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/teigland/linux-dlm	2012-01-10 14:55:55 -08:00
omfs	omfs: propagate umode_t	2012-01-03 22:55:01 -05:00
openpromfs	vfs: fix the stupidity with i_dentry in inode destructors	2012-01-03 22:52:40 -05:00
proc	Merge branches 'sched-urgent-for-linus', 'perf-urgent-for-linus' and 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip	2012-01-19 14:53:06 -08:00
pstore	…
qnx4	qnx4: don't leak ->BitMap on late failure exits	2012-01-19 13:54:36 -05:00
quota	vfs: prefer ->dentry->d_sb to ->mnt->mnt_sb	2012-01-06 23:16:53 -05:00
ramfs	pohmelfs: propagate umode_t	2012-01-03 22:55:07 -05:00
reiserfs	reiserfs: don't lock root inode searching	2012-01-10 16:30:54 -08:00
romfs	MTD pull for 3.3	2012-01-10 13:45:22 -08:00
squashfs	Merge git://git.kernel.org/pub/scm/linux/kernel/git/pkl/squashfs-next	2012-01-13 10:34:57 -08:00
sysfs	sysfs: propagate umode_t	2012-01-03 22:55:03 -05:00
sysv	vfs: prefer ->dentry->d_sb to ->mnt->mnt_sb	2012-01-06 23:16:53 -05:00
ubifs	UBIFS: fix non-debug configuration build	2012-01-15 13:46:02 +02:00
udf	Merge branch 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs	2012-01-09 12:51:21 -08:00
ufs	vfs: switch ->show_options() to struct dentry *	2012-01-06 23:19:54 -05:00
xfs	xfs: cleanup xfs_file_aio_write	2012-01-17 15:12:33 -06:00
Kconfig	Merge branch 'for-linus' of git://git.open-osd.org/linux-open-osd	2012-01-09 12:51:01 -08:00
Kconfig.binfmt	fs: binfmt_elf: create Kconfig variable for PIE randomization	2012-01-10 16:30:51 -08:00
Makefile	Merge branches 'vfsmount-guts', 'umode_t' and 'partitions' into Z	2012-01-06 23:15:54 -05:00
aio.c	Unused iocbs in a batch should not be accounted as active.	2012-01-13 20:39:44 -08:00
anon_inodes.c	…
attr.c	switch is_sxid() to umode_t	2012-01-03 22:55:11 -05:00
bad_inode.c	switch ->mknod() to umode_t	2012-01-03 22:54:54 -05:00
binfmt_aout.c	…
binfmt_elf.c	fs: binfmt_elf: create Kconfig variable for PIE randomization	2012-01-10 16:30:51 -08:00
binfmt_elf_fdpic.c	…
binfmt_em86.c	…
binfmt_flat.c	…
binfmt_misc.c	vfs: prefer ->dentry->d_sb to ->mnt->mnt_sb	2012-01-06 23:16:53 -05:00
binfmt_script.c	…
binfmt_som.c	…
bio-integrity.c	…
bio.c	…
block_dev.c	vfs: cache request_queue in struct block_device	2012-01-12 20:13:12 -08:00
buffer.c	fs: move code out of buffer.c	2012-01-03 22:54:07 -05:00
char_dev.c	char_dev.c: fix up some whitespace errors	2011-12-13 11:18:17 -08:00
compat.c	switch open and mkdir syscalls to umode_t	2012-01-03 22:55:19 -05:00
compat_binfmt_elf.c	…
compat_ioctl.c	Merge branch 'v4l_for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media	2012-01-15 12:49:56 -08:00
dcache.c	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/sage/ceph-client	2012-01-13 10:29:21 -08:00
dcookies.c	…
direct-io.c	dio: optimize cache misses in the submission path	2012-01-12 20:13:12 -08:00
drop_caches.c	…
eventfd.c	…
eventpoll.c	epoll: limit paths	2012-01-12 20:13:04 -08:00
exec.c	tracepoint: add tracepoints for debugging oom_score_adj	2012-01-10 16:30:44 -08:00
fcntl.c	…
fhandle.c	vfs: prefer ->dentry->d_sb to ->mnt->mnt_sb	2012-01-06 23:16:53 -05:00
fifo.c	…
file.c	…
file_table.c	vfs: prevent remount read-only if pending removes	2012-01-06 23:20:13 -05:00
filesystems.c	vfs: convert fs_supers to hlist	2012-01-03 22:52:39 -05:00
fs-writeback.c	Merge branch 'writeback-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/wfg/linux	2012-01-10 16:59:59 -08:00
fs_struct.c	…
generic_acl.c	…
inode.c	vfs: remove printk from set_nlink()	2012-01-17 16:39:47 -05:00
internal.h	vfs: protect remounting superblock read-only	2012-01-06 23:20:12 -05:00
ioctl.c	vfs: fix up ENOIOCTLCMD error handling	2012-01-05 15:40:12 -08:00
ioprio.c	block, cfq: unlink cfq_io_context's immediately	2011-12-14 00:33:39 +01:00
libfs.c	fs: move code out of buffer.c	2012-01-03 22:54:07 -05:00
locks.c	vfs: fix handling of lock allocation failure in lease-break case	2011-12-26 10:25:26 -08:00
mbcache.c	…
mount.h	vfs: keep list of mounts for each superblock	2012-01-06 23:20:12 -05:00
mpage.c	fs: remove unneeded plug in mpage_readpages()	2012-01-12 09:19:54 +01:00
namei.c	audit: do not call audit_getname on error	2012-01-17 16:17:01 -05:00
namespace.c	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial	2012-01-08 13:21:22 -08:00
no-block.c	…
open.c	switch security_path_chmod() to struct path *	2012-01-06 23:16:53 -05:00
pipe.c	pipe: fail cleanly when root tries F_SETPIPE_SZ with big size	2012-01-12 20:13:04 -08:00
pnode.c	vfs: switch pnode.h macros to struct mount *	2012-01-03 22:57:11 -05:00
pnode.h	vfs: switch pnode.h macros to struct mount *	2012-01-03 22:57:11 -05:00
posix_acl.c	…
proc_namespace.c	vfs: switch ->show_options() to struct dentry *	2012-01-06 23:19:54 -05:00
read_write.c	…
read_write.h	…
readdir.c	…
select.c	…
seq_file.c	constify seq_file stuff	2012-01-03 22:52:40 -05:00
signalfd.c	…
splice.c	fs: move code out of buffer.c	2012-01-03 22:54:07 -05:00
stack.c	…
stat.c	…
statfs.c	vfs: new helper - vfs_ustat()	2012-01-03 22:53:07 -05:00
super.c	wake up s_wait_unfrozen when ->freeze_fs fails	2012-01-17 16:38:47 -05:00
sync.c	fs: move code out of buffer.c	2012-01-03 22:54:07 -05:00
timerfd.c	…
utimes.c	…
xattr.c	vfs: mnt_drop_write_file()	2012-01-03 22:52:40 -05:00
xattr_acl.c	…