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8a4c2495b1
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Alexey Korolev 8a4c2495b1 MTD: nandsim: use less RAM 
Nandsim consumes ~2x more RAM than the density of simulated device.
It becomes critical if we need to simulate 256MB NAND and run stress tests
on it.

We investigated the reasons. nandsim allocates space for pages using kmalloc
function. The size of LP nand page is 2112 bytes.
kmalloc gets space from slab pools by chunks 2^n. So if we need to kmalloc
2112 bytes, 4096 bytes will be consumed by system.
The best way to avoid this issue would be using kmem_cache allocations. AFAIK
this mechanism specially designed to handle cases when arrays of allocations
are used.

Signed-off-by: Alexey Korolev <akorolev@infradead.org>
Tested-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com>
Acked-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com>
Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com>
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
2008-12-10 13:35:23 +00:00
..
accessibility
acpi Revert "ACPI: battery: Convert discharge energy rate to current properly" 2008-12-05 13:30:03 -08:00
amba
ata ata: Fix experimental tags 2008-12-09 00:44:29 -05:00
atm ATM: horizon, fix hrz_probe fail path 2008-11-29 20:42:28 -08:00
auxdisplay
base sysfs: Fix return values for sysdev_store_{ulong,int} 2008-10-29 15:03:49 -07:00
block [PATCH] fix bogus argument of blkdev_put() in pktcdvd 2008-12-04 04:22:59 -05:00
bluetooth bpa10x: free sk_buff with kfree_skb 2008-10-31 00:40:19 -07:00
cdrom gdrom: Fix compile error 2008-10-28 17:46:02 +09:00
char Fix incorrect use of loose in tty/serial drivers 2008-12-05 13:40:52 -08:00
clocksource
connector
cpufreq
cpuidle regression: disable timer peek-ahead for 2.6.28 2008-11-09 16:28:42 -08:00
crypto fix talitos 2008-11-30 10:03:36 -08:00
dca [4/4] dca: fixup initialization dependency 2008-11-10 15:01:03 -08:00
dio
dma dmaengine: struct device - replace bus_id with dev_name(), dev_set_name() 2008-11-11 13:12:33 -07:00
edac i82875p_edac: fix module remove 2008-12-01 19:55:25 -08:00
eisa
firewire firewire: fw-sbp2: another iPod mini quirk entry 2008-11-25 21:38:31 +01:00
firmware trivial: dmi_scan typo 2008-11-07 08:25:43 -08:00
gpio gpiolib: extend gpio label column width in debugfs file 2008-11-19 18:49:57 -08:00
gpu drm/i915: Disable the GM965 MSI errata workaround. 2008-12-09 15:37:24 +10:00
hid HID: Apple ALU wireless keyboards are bluetooth devices 2008-11-28 15:09:26 +01:00
hwmon hwmon: applesmc: make applesmc load automatically on startup 2008-12-01 19:55:24 -08:00
i2c i2c-parport: Fix misplaced parport_release call 2008-11-28 15:24:39 +01:00
ide ide: build-fix for CONFIG_BLK_DEV_IDEDMA_PMAC=n 2008-12-08 17:52:05 +01:00
idle i7300_idle: Kconfig, show menu only on x86_64 2008-10-28 00:14:47 -04:00
ieee1394 ieee1394: sbp2: fix race condition in state change 2008-11-29 17:07:56 +01:00
infiniband Merge branches 'ehca' and 'mlx4' into for-linus 2008-12-01 10:11:50 -08:00
input Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input 2008-11-30 11:05:21 -08:00
isdn hysdn: fix writing outside the field on 64 bits 2008-12-03 21:01:28 -08:00
leds remove unused #include <version.h>'s 2008-11-01 09:50:12 -07:00
lguest
macintosh rackmeter section fixes 2008-11-30 10:03:37 -08:00
mca
md block: fix setting of max_segment_size and seg_boundary mask 2008-12-03 12:55:55 +01:00
media em28xx: remove backward compat macro added on a previous fix 2008-12-01 18:04:14 -02:00
memstick [PATCH] switch memstick 2008-10-21 07:48:33 -04:00
message drivers/message/i2o/iop.c: cleanup kerneldoc 2008-12-05 13:40:52 -08:00
mfd mfd: Correct WM8350 I2C return code usage 2008-11-16 19:58:47 +01:00
misc sgi-gru: call fs_initcall() if statically linked 2008-12-02 15:51:35 -08:00
mmc mmc: struct device - replace bus_id with dev_name(), dev_set_name() 2008-11-08 21:37:46 +01:00
mtd MTD: nandsim: use less RAM 2008-12-10 13:35:23 +00:00
net zd1211rw: use unaligned safe memcmp() in-place of compare_ether_addr() 2008-12-05 09:18:35 -05:00
nubus
of OF-device: Don't overwrite numa_node in device registration 2008-10-31 16:12:01 +11:00
oprofile oprofile: fix memory ordering 2008-10-27 19:15:41 +01:00
parisc [PATCH] introduce fmode_t, do annotations 2008-10-21 07:47:06 -04:00
parport parport_serial: fix array overflow 2008-12-01 19:55:24 -08:00
pci Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6 2008-12-02 15:55:05 -08:00
pcmcia pcmcia: ensure correct logging in do_io_probe 2008-11-09 21:47:47 +01:00
pnp drivers: remove duplicated #include 2008-11-04 08:18:19 -08:00
power
ps3 powerpc/ps3: Fix compile error in ps3-lpm.c 2008-11-05 19:59:08 +11:00
rapidio rapidio section noise 2008-11-30 10:03:37 -08:00
regulator regulator: Use menuconfig in Kconfig 2008-11-09 14:49:23 +00:00
rtc Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc-2.6 2008-12-02 15:55:43 -08:00
s390 [SCSI] zfcp: prevent double decrement on host_busy while being busy 2008-12-01 10:18:20 -06:00
sbus Revert "of_platform_driver noise on sparce" 2008-12-01 07:55:14 -08:00
scsi [PATCH 1/2] kill FMODE_NDELAY_NOW 2008-12-04 04:22:57 -05:00
serial Fix incorrect use of loose in tty/serial drivers 2008-12-05 13:40:52 -08:00
sh
sn
spi spi: fix spi_s3c24xx_gpio num_chipselect 2008-12-01 19:55:24 -08:00
ssb SSB: hide empty sub menu 2008-11-10 13:50:17 -08:00
staging Don't ask twice about not including staging drivers 2008-11-09 12:47:04 -08:00
tc
telephony telephony: trivial: fix up email address 2008-11-11 09:30:23 -08:00
thermal
uio saner FASYNC handling on file close 2008-11-01 09:49:46 -07:00
usb Fix incorrect use of loose in tty/serial drivers 2008-12-05 13:40:52 -08:00
uwb
video radeonfb: Disable new color expand acceleration unless explicitely enabled 2008-12-09 08:24:38 -08:00
virtio
w1 W1_MASTER_DS1WM should depend on HAVE_CLK 2008-11-30 10:03:36 -08:00
watchdog iTCO_wdt: fix typo when setting TCO_EN bit 2008-12-03 16:20:19 -08:00
xen xen: fix scrub_page() 2008-11-17 19:11:26 +01:00
zorro
Kconfig regulator: Build on non-ARM platforms 2008-10-28 21:47:17 +00:00
Makefile Merge branch 'for-upstream' of git://git.kernel.org/pub/scm/linux/kernel/git/dvrabel/uwb 2008-10-26 16:35:46 -07:00