Christoph Hellwig 4246a0b63b block: add a bi_error field to struct bio ... Currently we have two different ways to signal an I/O error on a BIO: (1) by clearing the BIO_UPTODATE flag (2) by returning a Linux errno value to the bi_end_io callback The first one has the drawback of only communicating a single possible error (-EIO), and the second one has the drawback of not beeing persistent when bios are queued up, and are not passed along from child to parent bio in the ever more popular chaining scenario. Having both mechanisms available has the additional drawback of utterly confusing driver authors and introducing bugs where various I/O submitters only deal with one of them, and the others have to add boilerplate code to deal with both kinds of error returns. So add a new bi_error field to store an errno value directly in struct bio and remove the existing mechanisms to clean all this up. Signed-off-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Hannes Reinecke <hare@suse.de> Reviewed-by: NeilBrown <neilb@suse.com> Signed-off-by: Jens Axboe <axboe@fb.com>		2015-07-29 08:55:15 -06:00
..
ABI	platform-drivers-x86 got 4.2	2015-07-01 18:55:34 -07:00
accounting
acpi	ACPI: Constify ACPI device IDs in documentation	2015-06-19 01:14:15 +02:00
aoe
arm	Allwinner late changes for 4.2	2015-07-09 15:08:44 -07:00
arm64
auxdisplay
backlight
blackfin
block	block: add a bi_error field to struct bio	2015-07-29 08:55:15 -06:00
blockdev	zram: add dynamic device add/remove functionality	2015-06-25 17:00:36 -07:00
bus-devices
cdrom
cgroups	Merge branch 'for-4.2' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/cgroup	2015-06-26 19:50:04 -07:00
cma
connector
console
cpu-freq	Documentation updates for 4.2	2015-06-24 20:01:36 -07:00
cpuidle
cris
crypto
development-process
device-mapper	dm stats: collect and report histogram of IO latencies	2015-06-17 12:40:40 -04:00
devicetree	Minor fixes for omaps against v4.2-rc1. Mostly just minor dts changes	2015-07-09 15:38:16 -07:00
dmaengine	Merge branch 'topic/pxa' into for-linus	2015-06-25 09:21:58 +05:30
DocBook	Merge branch 'drm-next' of git://people.freedesktop.org/~airlied/linux	2015-06-26 13:18:51 -07:00
driver-model
dvb
early-userspace
EDID
extcon
fault-injection
fb
features
filesystems	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs	2015-07-04 19:36:06 -07:00
firmware_class
fmc
frv
gpio	Documentation updates for 4.2	2015-06-24 20:01:36 -07:00
hid
hwmon	hwmon: Document which I2C addresses can be probed	2015-07-03 14:39:05 +02:00
i2c	Merge branch 'i2c/for-4.2' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux	2015-06-25 18:42:39 -07:00
ia64
ide
infiniband
input	Doc: Change wikipedia's URL from http to https	2015-06-22 10:14:05 -06:00
ioctl	fuse: device fd clone	2015-07-01 16:26:08 +02:00
isdn
ja_JP
kbuild	kbuild: Allow arch Makefiles to override {cpp,ld,c}flags	2015-07-06 11:09:00 +05:30
kdump
ko_KR
laptops
leds	Merge branch 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/cooloney/linux-leds	2015-07-01 19:09:11 -07:00
locking
m68k
memory-devices
metag
mic	Char/Misc driver patches for 4.2-rc1	2015-06-26 14:51:15 -07:00
mips
misc-devices	Pratyush Anand has moved	2015-06-25 17:00:38 -07:00
mmc
mn10300
mtd
namespaces
netlabel
networking	netconsole: implement extended console support	2015-06-25 17:00:39 -07:00
nfc
nios2
nvdimm	libnvdimm: Non-Volatile Devices	2015-06-26 11:23:38 -04:00
parisc
PCI
pcmcia
phy
platform
power	PM / hibernate: clarify resume documentation	2015-07-07 01:18:11 +02:00
powerpc	powerpc/tm: Abort syscalls in active transactions	2015-06-19 17:10:28 +10:00
pps	Doc:pps: Fix typo in pps.txt	2015-06-22 09:59:28 -06:00
prctl	Documentation/prctl: don't build tsc tests when cross compiling	2015-06-22 16:05:04 -06:00
pti
ptp
rapidio
RCU	Documentation updates for 4.2	2015-06-24 20:01:36 -07:00
s390
scheduler
scsi	Merge branch 'for-4.2/sg' of git://git.kernel.dk/linux-block	2015-06-25 15:22:36 -07:00
security
serial	Doc: serial-rs485.txt: update RS485 driver interface	2015-06-12 17:39:51 -07:00
sh
sound
spi
sysctl	coredump: use from_kuid/kgid when formatting corename	2015-06-25 17:00:43 -07:00
target	Merge branch 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/nab/target-pending	2015-07-04 14:13:43 -07:00
thermal
timers
tpm
trace
usb	USB patches for 4.2-rc1	2015-06-26 15:59:26 -07:00
vDSO	Documentation/vDSO: don't build tests when cross compiling	2015-06-22 16:04:57 -06:00
video4linux	[media] Documentation: update cardlists	2015-06-09 18:43:47 -03:00
virtual
vm	zswap: runtime enable/disable	2015-06-25 17:00:37 -07:00
w1
watchdog	watchdog: omap_wdt: early_enable module parameter	2015-07-01 16:43:17 +02:00
wimax
x86	x86/asm/entry/64: Update path names	2015-07-02 11:08:50 +02:00
xtensa
zh_CN	Documentation updates for 4.2	2015-06-24 20:01:36 -07:00
00-INDEX
applying-patches.txt
assoc_array.txt
atomic_ops.txt
bad_memory.txt
basic_profiling.txt
bcache.txt
binfmt_misc.txt
braille-console.txt
bt8xxgpio.txt
btmrvl.txt
BUG-HUNTING
bus-virt-phys-mapping.txt
cachetlb.txt
Changes
circular-buffers.txt
clk.txt
coccinelle.txt
CodeOfConflict
CodingStyle
cpu-hotplug.txt
cpu-load.txt
cputopology.txt
crc32.txt
dcdbas.txt
debugging-modules.txt
debugging-via-ohci1394.txt	Doc: Change wikipedia's URL from http to https	2015-06-22 10:14:05 -06:00
dell_rbu.txt
devices.txt
digsig.txt
DMA-API-HOWTO.txt	Documentation updates for 4.2	2015-06-24 20:01:36 -07:00
DMA-API.txt
DMA-attributes.txt
dma-buf-sharing.txt
DMA-ISA-LPC.txt
dontdiff
dynamic-debug-howto.txt
edac.txt	EDAC: Update Documentation/edac.txt	2015-06-24 18:17:40 +02:00
efi-stub.txt
eisa.txt
email-clients.txt
flexible-arrays.txt
futex-requeue-pi.txt
gcov.txt
gdb-kernel-debugging.txt
highuid.txt
HOWTO
hsi.txt
hw_random.txt
hwspinlock.txt
init.txt
initrd.txt
Intel-IOMMU.txt
intel_txt.txt
io-mapping.txt
io_ordering.txt
iostats.txt
IPMI.txt
IRQ-affinity.txt
IRQ-domain.txt
IRQ.txt
irqflags-tracing.txt
isapnp.txt
java.txt
kasan.txt
kernel-doc-nano-HOWTO.txt
kernel-docs.txt
kernel-parameters.txt	Additional ACPICA material for v4.2-rc1	2015-07-02 17:11:28 -07:00
kernel-per-CPU-kthreads.txt
kmemcheck.txt
kmemleak.txt	Doc: Change wikipedia's URL from http to https	2015-06-22 10:14:05 -06:00
kobject.txt
kprobes.txt
kref.txt
kselftest.txt
ldm.txt
local_ops.txt
lockup-watchdogs.txt	watchdog: add watchdog_cpumask sysctl to assist nohz	2015-06-24 17:49:40 -07:00
logo.gif
logo.txt
lzo.txt
magic-number.txt
mailbox.txt
Makefile
ManagementStyle
md-cluster.txt
md.txt	doc:md: fix typo in md.txt.	2015-06-23 06:49:44 -06:00
media-framework.txt
memory-barriers.txt	Merge branch 'locking-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip	2015-06-22 14:54:22 -07:00
memory-hotplug.txt
module-signing.txt
mono.txt
nommu-mmap.txt
ntb.txt	NTB: Rename Intel code names to platform names	2015-07-04 14:09:25 -04:00
numastat.txt
oops-tracing.txt
padata.txt
parport-lowlevel.txt
parport.txt
percpu-rw-semaphore.txt
phy.txt
pi-futex.txt
pinctrl.txt
pnp.txt
preempt-locking.txt
printk-formats.txt
pwm.txt
ramoops.txt
rbtree.txt
remoteproc.txt	remoteproc: introduce rproc_get_by_phandle API	2015-06-16 21:12:52 +03:00
rfkill.txt
robust-futex-ABI.txt
robust-futexes.txt
rpmsg.txt
rtc.txt
SAK.txt
SecurityBugs
serial-console.txt
sgi-ioc4.txt
SM501.txt
smsc_ece1099.txt
sparse.txt
stable_api_nonsense.txt
stable_kernel_rules.txt
static-keys.txt
SubmitChecklist
SubmittingDrivers
SubmittingPatches
svga.txt
sysfs-rules.txt
sysrq.txt
this_cpu_ops.txt
unaligned-memory-access.txt
unicode.txt
unshare.txt
vfio.txt	vfio: powerpc/spapr: Support Dynamic DMA windows	2015-06-11 15:16:55 +10:00
VGA-softcursor.txt
vgaarbiter.txt
video-output.txt
vme_api.txt	Documentation: mention vme_master_mmap() in VME API	2015-06-12 17:26:56 -07:00
volatile-considered-harmful.txt
workqueue.txt
xillybus.txt
xz.txt
zorro.txt