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WSL2-Linux-Kernel
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WSL2-Linux-Kernel/drivers/ide
История
Borislav Petkov 2c8fc86760 ide-disk: Fix request requeuing 
Simon Kirby reported that on his RAID setup with idedisk underneath
the box OOMs after a couple of days of runtime. Running with
CONFIG_DEBUG_KMEMLEAK pointed to idedisk_prep_fn() which unconditionally
allocates an ide_cmd struct. However, ide_requeue_and_plug() can be
called more than once per request, either from the request issue or the
IRQ handler path and do blk_peek_request() ends up in idedisk_prep_fn()
repeatedly, allocating a struct ide_cmd everytime and "forgetting" the
previous pointer.

Make sure the code reuses the old allocated chunk.

Reported-and-tested-by: Simon Kirby <sim@hostway.ca>
Cc: <stable@kernel.org> [ 39.x, 3.0.x ]
Link: http://marc.info/?l=linux-kernel&m=131667641517919
Link: http://lkml.kernel.org/r/20110922072643.GA27232@hostway.ca
Signed-off-by: Borislav Petkov <bp@alien8.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
 		2011-10-03 14:28:18 -04:00
..
Kconfig kconfig: rename CONFIG_EMBEDDED to CONFIG_EXPERT 2011-01-20 17:02:05 -08:00
Makefile ide: change to new flag variable 2011-03-17 14:05:34 +01:00
aec62xx.c ide: change ->set_dma_mode method parameters 2010-01-19 01:45:29 -08:00
ali14xx.c ide: change ->set_pio_mode method parameters 2010-01-19 01:44:41 -08:00
alim15x3.c alim15x3: fix handling of UDMA enable bit 2010-01-19 01:52:31 -08:00
amd74xx.c amd74xx: use ->pio_mode value to determine pair device speed 2010-01-19 01:52:32 -08:00
at91_ide.c ide: change ->set_pio_mode method parameters 2010-01-19 01:44:41 -08:00
atiixp.c ide: change ->set_dma_mode method parameters 2010-01-19 01:45:29 -08:00
au1xxx-ide.c Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/ide-next-2.6 2010-03-04 08:24:06 -08:00
buddha.c ide: move ack_intr() method into 'struct ide_port_ops' (take 2) 2009-06-15 18:52:58 +02:00
cmd64x.c cmd64x: fix handling of address setup timings 2010-01-19 01:52:32 -08:00
cmd640.c cmd640: fix kernel oops in test_irq() method 2010-05-11 00:08:03 -07:00
cs5520.c ide: change ->set_dma_mode method parameters 2010-01-19 01:45:29 -08:00
cs5530.c ide: change ->set_dma_mode method parameters 2010-01-19 01:45:29 -08:00
cs5535.c cs5535: use ->pio_mode value to determine pair device speed 2010-01-19 01:52:33 -08:00
cs5536.c cs5536: use ->pio_mode value to determine pair device speed 2010-01-19 01:52:33 -08:00
cy82c693.c drivers/ide/cy82c693.c: Add missing pci_dev_put 2011-08-04 01:30:34 -07:00
delkin_cb.c ide: remove hw_regs_t typedef 2009-05-17 19:12:25 +02:00
dtc2278.c ide: change ->set_pio_mode method parameters 2010-01-19 01:44:41 -08:00
falconide.c ide: move ack_intr() method into 'struct ide_port_ops' (take 2) 2009-06-15 18:52:58 +02:00
gayle.c m68k: amiga - Amiga Gayle IDE platform device conversion 2010-05-26 19:51:09 +02:00
hpt366.c hpt366: fix clock turnaround 2010-10-26 10:17:29 -07:00
ht6560b.c Update broken web addresses in the kernel. 2010-10-18 11:03:14 +02:00
icside.c Merge branch 'master' of master.kernel.org:/pub/scm/linux/kernel/git/davem/ide-2.6 2010-03-02 23:57:59 -08:00
ide-4drives.c ide: remove hw_regs_t typedef 2009-05-17 19:12:25 +02:00
ide-acpi.c ide: fix use after free in ide-acpi 2010-11-22 11:37:21 -08:00
ide-atapi.c block: remove per-queue plugging 2011-03-10 08:52:07 +01:00
ide-cd.c ide-cd: signedness warning fix again 2011-06-11 15:06:48 -07:00
ide-cd.h ide: Convert to bdops->check_events() 2011-03-09 19:54:27 +01:00
ide-cd_ioctl.c ide: unexport DISK_EVENT_MEDIA_CHANGE for ide-gd and ide-cd 2011-04-21 19:43:59 +02:00
ide-cd_verbose.c
…
ide-cs.c pcmcia: Convert pcmcia_device_id declarations to const 2011-05-06 07:46:22 +02:00
ide-devsets.c include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h 2010-03-30 22:02:32 +09:00
ide-disk.c ide-disk: Fix request requeuing 2011-10-03 14:28:18 -04:00
ide-disk.h
…
ide-disk_ioctl.c block: autoconvert trivial BKL users to private mutex 2010-10-05 15:01:10 +02:00
ide-disk_proc.c include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h 2010-03-30 22:02:32 +09:00
ide-dma-sff.c ide: remove wmb() from ide-dma-sff.c and scc_pata.c 2009-04-08 14:12:49 +02:00
ide-dma.c ide: clean up timed out request handling 2010-10-26 10:17:30 -07:00
ide-eh.c block: remove wrappers for request type/flags 2010-08-07 18:17:56 +02:00
ide-floppy.c Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/ide-2.6 2011-05-22 22:08:32 -07:00
ide-floppy.h
…
ide-floppy_ioctl.c block: autoconvert trivial BKL users to private mutex 2010-10-05 15:01:10 +02:00
ide-floppy_proc.c ide: convert to ->proc_fops 2009-09-01 17:52:57 -07:00
ide-gd.c ide: unexport DISK_EVENT_MEDIA_CHANGE for ide-gd and ide-cd 2011-04-21 19:43:59 +02:00
ide-gd.h ide: move ->failed_pc to ide_drive_t 2009-03-27 12:46:34 +01:00
ide-generic.c ide: remove hw_regs_t typedef 2009-05-17 19:12:25 +02:00
ide-h8300.c ide: remove hw_regs_t typedef 2009-05-17 19:12:25 +02:00
ide-io-std.c ide: refactor tf_read() method 2009-04-08 14:13:03 +02:00
ide-io.c ide: always ensure that blk_delay_queue() is called if we have pending IO 2011-04-05 23:52:49 +02:00
ide-ioctls.c include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h 2010-03-30 22:02:32 +09:00
ide-iops.c ide: add SATA cable detection support 2010-01-19 01:41:57 -08:00
ide-legacy.c ide: remove hw_regs_t typedef 2009-05-17 19:12:25 +02:00
ide-lib.c Merge branch 'master' into for-2.6.31 2009-05-22 20:28:35 +02:00
ide-park.c block: remove per-queue plugging 2011-03-10 08:52:07 +01:00
ide-pci-generic.c pata_piccolo: Driver for old Toshiba chipsets 2009-12-03 14:35:31 -05:00
ide-pio-blacklist.c
…
ide-pm.c block: remove wrappers for request type/flags 2010-08-07 18:17:56 +02:00
ide-pnp.c ide: remove hw_regs_t typedef 2009-05-17 19:12:25 +02:00
ide-probe.c ide: Fix ordering of procfs registry. 2010-09-13 21:34:25 -07:00
ide-proc.c include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h 2010-03-30 22:02:32 +09:00
ide-scan-pci.c ide/ide-scan-pci.c: Use for_each_pci_dev(). 2011-05-16 14:24:46 -07:00
ide-sysfs.c ide: move sysfs support to ide-sysfs.c 2009-01-02 16:12:48 +01:00
ide-tape.c Merge branch 'llseek' of git://git.kernel.org/pub/scm/linux/kernel/git/arnd/bkl 2010-10-22 10:52:56 -07:00
ide-taskfile.c Fix common misspellings 2011-03-31 11:26:23 -03:00
ide-timings.c ide: ide_timing_compute() fixup 2010-01-19 11:30:09 -08:00
ide-xfer-mode.c ide: make ide_get_best_pio_mode() static 2010-01-19 01:52:36 -08:00
ide.c ide: use module_param_named rather than module_param_call 2010-08-11 23:04:39 +09:30
ide_platform.c ide: Fix irq flags madness 2011-08-04 01:29:51 -07:00
it821x.c include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h 2010-03-30 22:02:32 +09:00
it8172.c ide: change ->set_dma_mode method parameters 2010-01-19 01:45:29 -08:00
it8213.c ide: change ->set_dma_mode method parameters 2010-01-19 01:45:29 -08:00
jmicron.c ide: change ->set_dma_mode method parameters 2010-01-19 01:45:29 -08:00
macide.c ide: move ack_intr() method into 'struct ide_port_ops' (take 2) 2009-06-15 18:52:58 +02:00
ns87415.c ide: refactor tf_read() method 2009-04-08 14:13:03 +02:00
opti621.c ide: change ->set_pio_mode method parameters 2010-01-19 01:44:41 -08:00
palm_bk3710.c treewide: Convert uses of struct resource to resource_size(ptr) 2011-06-10 14:55:36 +02:00
pdc202xx_new.c ide: change ->set_dma_mode method parameters 2010-01-19 01:45:29 -08:00
pdc202xx_old.c pdc202xx_old: ignore "FIFO empty" bit in test_irq() method 2010-04-22 19:11:24 -07:00
piix.c Fix common misspellings 2011-03-31 11:26:23 -03:00
pmac.c drivers/ide/pmac.c: Remove unnecessary casts of pci_get_drvdata 2010-11-22 11:38:08 -08:00
q40ide.c ide: move ack_intr() method into 'struct ide_port_ops' (take 2) 2009-06-15 18:52:58 +02:00
qd65xx.c ide: change ->set_pio_mode method parameters 2010-01-19 01:44:41 -08:00
qd65xx.h ide: do not access ide_drive_t 'drive_data' field directly 2009-06-15 22:13:44 +02:00
rapide.c include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h 2010-03-30 22:02:32 +09:00
rz1000.c rz1000: apply chipset quirks early (v2) 2008-12-29 20:27:33 +01:00
sc1200.c include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h 2010-03-30 22:02:32 +09:00
scc_pata.c Merge branch 'master' of master.kernel.org:/pub/scm/linux/kernel/git/davem/ide-2.6 2010-03-02 23:57:59 -08:00
serverworks.c ide: change ->set_dma_mode method parameters 2010-01-19 01:45:29 -08:00
setup-pci.c ide: re-implement ide_pci_init_one() on top of ide_pci_init_two() 2009-06-10 14:37:21 +02:00
sgiioc4.c ide: change ->set_dma_mode method parameters 2010-01-19 01:45:29 -08:00
siimage.c siimage: use ->pio_mode value to determine pair device speed 2010-01-19 01:52:35 -08:00
sis5513.c Fix common misspellings 2011-03-31 11:26:23 -03:00
sl82c105.c ide: change ->set_dma_mode method parameters 2010-01-19 01:45:29 -08:00
slc90e66.c ide: change ->set_dma_mode method parameters 2010-01-19 01:45:29 -08:00
tc86c001.c ide: change ->set_dma_mode method parameters 2010-01-19 01:45:29 -08:00
triflex.c Fix common misspellings 2011-03-31 11:26:23 -03:00
trm290.c ide: turn selectproc() method into dev_select() method (take 5) 2009-03-31 20:15:32 +02:00
tx4938ide.c tx493xide: use min_t() macro instead of min() 2010-08-09 03:17:55 -07:00
tx4939ide.c treewide: Convert uses of struct resource to resource_size(ptr) 2011-06-10 14:55:36 +02:00
umc8672.c ide: change ->set_pio_mode method parameters 2010-01-19 01:44:41 -08:00
via82cxxx.c Fix common misspellings 2011-03-31 11:26:23 -03:00