David Howells 1dce27c5aa Wrap accesses to the fd_sets in struct fdtable ... Wrap accesses to the fd_sets in struct fdtable (for recording open files and close-on-exec flags) so that we can move away from using fd_sets since we abuse the fd_set structs by not allocating the full-sized structure under normal circumstances and by non-core code looking at the internals of the fd_sets. The first abuse means that use of FD_ZERO() on these fd_sets is not permitted, since that cannot be told about their abnormal lengths. This introduces six wrapper functions for setting, clearing and testing close-on-exec flags and fd-is-open flags: void __set_close_on_exec(int fd, struct fdtable *fdt); void __clear_close_on_exec(int fd, struct fdtable *fdt); bool close_on_exec(int fd, const struct fdtable *fdt); void __set_open_fd(int fd, struct fdtable *fdt); void __clear_open_fd(int fd, struct fdtable *fdt); bool fd_is_open(int fd, const struct fdtable *fdt); Note that I've prepended '__' to the names of the set/clear functions because they require the caller to hold a lock to use them. Note also that I haven't added wrappers for looking behind the scenes at the the array. Possibly that should exist too. Signed-off-by: David Howells <dhowells@redhat.com> Link: http://lkml.kernel.org/r/20120216174942.23314.1364.stgit@warthog.procyon.org.uk Signed-off-by: H. Peter Anvin <hpa@zytor.com> Cc: Al Viro <viro@zeniv.linux.org.uk>		2012-02-19 10:30:52 -08:00
..
ABI	Autogenerated GPG tag for Rusty D1ADB8F1: 15EE 8D6C AB0E 7F0C F999 BFCB D920 0E6C D1AD B8F1	2012-01-14 12:32:16 -08:00
accounting	Documentation: update cgroupfs mount point	2011-06-15 21:52:50 -07:00
acpi	acpi/apei/einj: Add extensions to EINJ from rev 5.0 of acpi spec	2012-01-18 01:14:17 -05:00
aoe	Documentation: update broken web addresses.	2010-08-04 15:21:40 +02:00
arm	ARM: move iotable mappings within the vmalloc region	2011-11-26 19:21:26 -05:00
auxdisplay
blackfin	doc: fix broken references	2011-09-27 18:08:04 +02:00
block	Documentation: drop as block elevator reference in switching-sched.txt	2011-11-04 12:01:48 -07:00
blockdev	cciss: auto engage SCSI mid layer at driver load time	2011-11-16 09:21:49 +01:00
cdrom	doc: fix broken references	2011-09-27 18:08:04 +02:00
cgroups	memcg: fix pgpgin/pgpgout documentation	2012-01-12 20:13:06 -08:00
connector	Documentation/: it's -> its where appropriate	2010-04-23 02:09:52 +02:00
console	doc: fix console doc typo	2010-02-24 13:51:32 +01:00
cpu-freq	Doc: cpufreq: Fix typo and outdated line	2011-11-08 10:23:29 +01:00
cpuidle
cris
crypto
development-process	Documentation: Update stable address	2011-12-12 14:14:31 -08:00
device-mapper	dm log userspace: fix comment hyphens	2011-10-31 20:21:22 +00:00
devicetree	Merge branch 'for-linus/i2c-33' of git://git.fluff.org/bjdooks/linux	2012-01-18 13:46:13 -08:00
DocBook	docbook: fix fatal errors in device-drivers docbook and add DMA Management section	2012-02-01 17:28:26 -08:00
driver-model	Documentation: devres: add allocation functions to list of supported calls	2012-01-24 10:47:42 -08:00
dvb	[media] dvb_get_firmware: updates for it913x	2011-12-11 09:00:48 -02:00
early-userspace
fault-injection	fault-injection: update documentation with the mmc module param	2011-10-26 16:32:13 -04:00
fb	fbdev: Add FOURCC-based format configuration API	2011-12-19 20:07:13 +00:00
filesystems	Wrap accesses to the fd_sets in struct fdtable	2012-02-19 10:30:52 -08:00
firmware_class	firmware: Update hotplug script	2010-08-05 13:53:34 -07:00
frv	doc: fix broken references	2011-09-27 18:08:04 +02:00
hid	HID: Move hiddev.txt to the new Documentation/hid directory	2011-03-22 11:43:51 +01:00
hwmon	hwmon: (sysfs-interface) Update tempX_type attribute to be more generic	2012-01-16 22:51:48 +01:00
i2c	i2c: Fix device name for 10-bit slave address	2011-11-23 11:33:07 +01:00
i2o	doc: i2o: fix typo 'Settting'	2011-06-07 16:06:01 +02:00
ia64	Fix common misspellings	2011-03-31 11:26:23 -03:00
ide
infiniband	Documentation: update broken web addresses.	2010-08-04 15:21:40 +02:00
input	Input: document device properties	2012-02-01 09:14:17 -08:00
ioctl	NVMe: New driver	2011-11-04 15:52:51 -04:00
isdn	doc: fix wrong arch/i386 references	2011-06-13 13:43:05 +02:00
ja_JP	Merge branch 'driver-core-next' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core-2.6	2011-07-25 23:06:24 -07:00
kbuild	kbuild: Add support for an "archheaders" target	2011-11-17 13:35:20 -08:00
kdump	[S390] Add s390x description to Documentation/kdump/kdump.txt	2011-12-27 11:27:13 +01:00
ko_KR	Docs/Kconfig: Update: osdl.org -> linuxfoundation.org	2010-11-15 23:50:13 +01:00
laptops	Documentation: thinkpad-acpi grammo fixes	2011-11-04 12:01:47 -07:00
leds	Documentation: fix leds-class.txt duplicated word	2011-11-04 12:01:48 -07:00
m68k	Documentation: add pointer to name_to_dev_t for root= values	2011-08-03 14:25:21 -10:00
make	kbuild: introduce HDR_ARCH_LIST for headers_install_all	2010-12-14 22:16:19 +01:00
mips	Fix common misspellings	2011-03-31 11:26:23 -03:00
misc-devices	Fix common misspellings	2011-03-31 11:26:23 -03:00
mmc	mmc: core: Fixup delayed work clock gating patch	2012-01-11 23:58:43 -05:00
mn10300
mtd	Documentation: update broken web addresses.	2010-08-04 15:21:40 +02:00
namespaces
netlabel	Documentation/: it's -> its where appropriate	2010-04-23 02:09:52 +02:00
networking	bonding: document undocumented active_slave sysfs entry.	2011-12-26 20:09:35 -05:00
nfc	NFC: Driver for NXP Semiconductors PN544 NFC chip.	2011-01-13 08:03:19 -08:00
parisc
PCI	doc: fix broken references	2011-09-27 18:08:04 +02:00
pcmcia	pcmcia: use autoconfiguration feature for ioports and iomem	2010-09-29 17:20:24 +02:00
power	PM / Documentation: Fix minor issue in freezing_of_tasks.txt	2012-01-19 23:22:49 +01:00
powerpc	Fix common misspellings	2011-03-31 11:26:23 -03:00
pps	pps: add parallel port PPS signal generator	2011-01-13 08:03:21 -08:00
prctl
pti	Kernel documentation for the PTI feature.	2011-05-13 16:31:00 -07:00
ptp	ptp: Added a brand new class driver for ptp clocks.	2011-05-23 13:01:00 -07:00
rapidio	RapidIO: documentation update	2011-11-02 16:07:02 -07:00
RCU	docs: Additional LWN links to RCU API	2011-12-11 10:32:23 -08:00
s390	[S390] Remove Kerntypes leftovers	2011-12-27 11:27:12 +01:00
scheduler	sched: Add documentation for bandwidth control	2011-08-14 12:03:58 +02:00
scsi	[SCSI] qla4xxx: Update license	2012-01-16 12:34:12 +04:00
security	Merge branch 'master'; commit 'v3.2-rc2' into next	2011-11-16 12:39:48 +11:00
serial	serial/documentation: fix documented name of DCD cpp symbol	2012-01-04 16:26:32 -08:00
sh	sh: clkfwk: Kill off unused clk_set_rate_ex().	2010-11-15 18:25:12 +09:00
sound	Merge branch 'topic/hda' into for-linus	2012-01-12 09:59:18 +01:00
sparc
spi	doc: fix broken references	2011-09-27 18:08:04 +02:00
sysctl	Documentation: add missing tainted bits to Documentation/sysctl/kernel.txt	2012-02-06 16:29:19 -08:00
target	target: tcm_mod_builder: small fixups	2011-12-14 11:38:25 +00:00
telephony	Fix common misspellings	2011-03-31 11:26:23 -03:00
thermal	thermal: Rename generate_netlink_event	2012-01-23 03:15:25 -05:00
timers	doc: fix broken references	2011-09-27 18:08:04 +02:00
trace	mm-tracepoint: fix documentation and examples	2012-01-10 16:30:41 -08:00
usb	USB: update documentation for usbmon	2012-01-04 16:04:30 -08:00
vDSO	Document the vDSO and add a reference parser	2011-07-14 17:57:09 -07:00
video4linux	[media] V4L2 Spec: fix extended control documentation	2012-01-16 09:37:53 -02:00
virtual	lguest: remove reference from Documentation/virtual/00-INDEX	2012-01-28 08:10:23 +10:30
vm	slub: document setting min order with debug_guardpage_minorder > 0	2012-01-12 20:13:04 -08:00
w1	Fix common misspellings	2011-03-31 11:26:23 -03:00
watchdog	watchdog: documentation: describe nowayout in coversion-guide	2012-01-06 15:26:14 +01:00
wimax
x86	x86-64, doc: Remove int 0xcc from entry_64.S documentation	2011-08-16 08:04:08 -07:00
zh_CN	remove the messy code file Documentation/zh_CN/SubmitChecklist	2011-09-26 16:18:41 -07:00
.gitignore	add random binaries to .gitignore	2010-04-08 11:34:34 +02:00
00-INDEX	Documentation: add Ramoops usage description	2011-08-13 18:34:03 -07:00
applying-patches.txt
atomic_ops.txt	doc: Add load/store guarantees to Documentation/atomic-ops.txt	2011-12-11 10:31:58 -08:00
bad_memory.txt
basic_profiling.txt
binfmt_misc.txt	Documentation: update broken web addresses.	2010-08-04 15:21:40 +02:00
braille-console.txt
bt8xxgpio.txt
btmrvl.txt
BUG-HUNTING
bus-virt-phys-mapping.txt	doc: fix broken references	2011-09-27 18:08:04 +02:00
cachetlb.txt	mm: convert mm->cpu_vm_cpumask into cpumask_var_t	2011-05-25 08:39:21 -07:00
Changes	Documentation/Changes: remove some really obsolete text	2011-07-11 16:48:38 -07:00
circular-buffers.txt	Document Linux's circular buffering capabilities	2010-03-24 16:31:22 -07:00
coccinelle.txt	coccinelle.txt: update documentation to include M= option	2012-01-14 22:25:56 +01:00
CodingStyle	Documentation: update CodingStyle use of braces	2011-11-04 12:01:47 -07:00
cpu-hotplug.txt	Fix common misspellings	2011-03-31 11:26:23 -03:00
cpu-load.txt
cputopology.txt	topology/sysfs: Provide book id and siblings attributes	2010-09-09 20:41:25 +02:00
dcdbas.txt
debugging-modules.txt
debugging-via-ohci1394.txt
dell_rbu.txt	Fix common misspellings	2011-03-31 11:26:23 -03:00
devices.txt	vhost-net: add module alias (v2.1)	2012-01-13 10:12:23 -08:00
digsig.txt	crypto: digital signature verification support	2011-11-09 12:10:37 +02:00
DMA-API-HOWTO.txt	Documentation/DMA-API-HOWTO.txt: fix misleading example	2011-07-26 16:49:45 -07:00
DMA-API.txt	include/linux/dma-mapping.h: add dma_zalloc_coherent()	2011-11-02 16:07:02 -07:00
DMA-attributes.txt
dma-buf-sharing.txt	dma-buf: Documentation update for Kconfig select	2012-01-13 10:27:33 +00:00
DMA-ISA-LPC.txt
dmaengine.txt	DMAEngine: Define interleaved transfer request api	2011-11-18 12:16:24 +05:30
dontdiff	[S390] Remove Kerntypes leftovers	2011-12-27 11:27:12 +01:00
dynamic-debug-howto.txt	Merge branch 'docs-next' of git://git.lwn.net/linux-2.6	2011-03-27 19:46:59 -07:00
edac.txt	Merge branch 'for-linus2' of git://git.profusion.mobi/users/lucas/linux-2.6	2011-04-07 11:14:49 -07:00
eisa.txt	Fix common misspellings	2011-03-31 11:26:23 -03:00
email-clients.txt	Documentation: email-clients: Add better Thunderbird information	2011-08-13 18:34:03 -07:00
feature-removal-schedule.txt	ARM: at91: removal of CAP9 SoC family	2012-01-20 15:08:38 +01:00
flexible-arrays.txt	flex_array: flex_array_prealloc takes a number of elements, not an end	2011-04-28 16:12:47 -04:00
futex-requeue-pi.txt
gcov.txt
gpio.txt	Revert "gpiolib: annotate gpio-intialization with __must_check"	2011-01-13 17:26:46 -08:00
highuid.txt
HOWTO	Documentation: Update stable address	2011-12-12 14:14:31 -08:00
hw_random.txt
hwspinlock.txt	hwspinlock/core: register a bank of hwspinlocks in a single API call	2011-09-21 19:45:34 +03:00
init.txt	init/main.c: improve usability in case of init binary failure	2010-03-06 11:26:29 -08:00
initrd.txt
intel_txt.txt	Documentation: update broken web addresses.	2010-08-04 15:21:40 +02:00
Intel-IOMMU.txt
io_ordering.txt
io-mapping.txt
iostats.txt	Documentation/iostats.txt: bit-size reference etc.	2011-03-23 20:44:18 +01:00
IPMI.txt	IPMI: Add the document description of ipmi_get_smi_info	2010-12-14 00:22:00 -05:00
IRQ-affinity.txt	bitmap, irq: add smp_affinity_list interface to /proc/irq	2011-05-25 08:39:45 -07:00
IRQ.txt
irqflags-tracing.txt	Fix common misspellings	2011-03-31 11:26:23 -03:00
isapnp.txt
java.txt
kernel-doc-nano-HOWTO.txt	docbook: warn on unused doc entries	2010-09-11 16:49:21 -07:00
kernel-docs.txt	doc: fix broken references	2011-09-27 18:08:04 +02:00
kernel-parameters.txt	Merge branch 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux	2012-01-18 15:51:48 -08:00
kmemcheck.txt
kmemleak.txt	kmemleak: Handle percpu memory allocation	2011-12-02 16:12:42 +00:00
kobject.txt	kobject: documentation: Update to refer to kset-example.c.	2010-03-19 07:12:20 -07:00
kprobes.txt	tree-wide: fix comment/printk typos	2010-11-01 15:38:34 -04:00
kref.txt	kref: Fix typo in kref documentation	2011-03-07 13:20:05 -08:00
ldm.txt	Documentation: update broken web addresses.	2010-08-04 15:21:40 +02:00
local_ops.txt
lockdep-design.txt	lockdep: Update documentation for lock-class leak detection	2011-12-11 10:31:23 -08:00
lockstat.txt	Documentation: Add statistics about nested locks	2011-05-28 17:03:29 +02:00
logo.gif
logo.txt
magic-number.txt	doc: fix wrong arch/i386 references	2011-06-13 13:43:05 +02:00
Makefile	[media] Remove the old V4L1 v4lgrab.c file	2010-12-29 08:17:12 -02:00
ManagementStyle
mca.txt	doc: fix wrong arch/i386 references	2011-06-13 13:43:05 +02:00
md.txt	md: create externally visible flags for supporting hot-replace.	2011-12-23 10:17:51 +11:00
media-framework.txt	doc: fix broken references	2011-09-27 18:08:04 +02:00
memory-barriers.txt	doc: fix broken references	2011-09-27 18:08:04 +02:00
memory-hotplug.txt	memory hotplug: Allow memory blocks to span multiple memory sections	2011-02-03 16:08:57 -08:00
memory.txt
mono.txt
mutex-design.txt	mutex: Fix annotations to include it in kernel-locking docbook	2010-09-03 08:19:51 +02:00
nmi_watchdog.txt
nommu-mmap.txt	nommu: fix malloc performance by adding uninitialized flag	2009-12-15 08:53:24 -08:00
numastat.txt
oops-tracing.txt	module,bug: Add TAINT_OOT_MODULE flag for modules not built in-tree	2011-11-07 07:54:42 +10:30
padata.txt	Documentation/padata.txt: fix typos etc.	2010-08-11 08:59:18 -07:00
parport-lowlevel.txt
parport.txt
pi-futex.txt
pinctrl.txt	pinctrl: fix some pinmux typos	2012-01-26 14:11:31 +01:00
pnp.txt	doc: capitalization and other minor fixes in pnp doc	2010-02-05 12:22:44 +01:00
preempt-locking.txt
printk-formats.txt	Documentation: update printk-formats.txt	2011-06-15 21:52:50 -07:00
prio_tree.txt
ramoops.txt	Documentation: add Ramoops usage description	2011-08-13 18:34:03 -07:00
rbtree.txt	Documentation: Update augmented rbtree documentation	2011-07-24 10:03:05 -07:00
rfkill.txt	doc: fix broken references	2011-09-27 18:08:04 +02:00
robust-futex-ABI.txt
robust-futexes.txt
rt-mutex-design.txt	variable name fix to Documentation/rt-mutex-design.txt	2010-06-05 17:39:09 +02:00
rt-mutex.txt
rtc.txt	RTC: Fix up rtc.txt documentation to reflect changes to generic rtc layer	2011-03-09 11:25:10 -08:00
SAK.txt
SecurityBugs	Fix common misspellings	2011-03-31 11:26:23 -03:00
serial-console.txt
sgi-ioc4.txt
sgi-visws.txt
SM501.txt
sparse.txt	update email address	2010-07-19 10:56:54 +02:00
spinlocks.txt	Documentation/spinlocks.txt: Remove reference to sti()/cli()	2011-07-11 12:45:04 -07:00
stable_api_nonsense.txt	doc: stable_api_nonsense.txt: fix paragraph to make more sense.	2011-03-30 12:02:05 +02:00
stable_kernel_rules.txt	stable: update documentation to ask for kernel version	2012-01-24 10:50:22 -08:00
SubmitChecklist	Documentation/SubmitChecklist: add RCU debug config options	2011-07-25 20:57:17 -07:00
SubmittingDrivers	Documentation: SubmittingDrivers: fix Linus's git tree URL	2011-08-13 18:34:03 -07:00
SubmittingPatches	Documentation: fix spelling error in SubmittingPatches	2011-08-13 18:34:02 -07:00
svga.txt
sysfs-rules.txt	Fix typos in comments	2010-03-16 11:47:56 +01:00
sysrq.txt	documentation: update sysrq.txt magic sysrq keys	2010-10-26 17:32:41 -07:00
unaligned-memory-access.txt
unicode.txt
unshare.txt
VGA-softcursor.txt
vgaarbiter.txt	misc latin1 to utf8 conversions	2012-01-02 13:04:55 +01:00
video-output.txt
volatile-considered-harmful.txt	Documentation/volatile-considered-harmful.txt: correct cpu_relax() documentation	2010-03-24 16:31:20 -07:00
workqueue.txt	workqueue: Document debugging tricks	2011-03-31 13:40:42 +02:00
xz.txt	decompressors: add XZ decompressor module	2011-01-13 08:03:24 -08:00
zorro.txt