Value of count is used to decide when to replenish rx buffers. If it is
equal or above 8 we replenish the buffers. Ensure there is no starvation
by initializing count to 8 - thus forcing replenish at first iteration.
This is helpful when rx receives batches of buffers smaller than 8.
Signed-off-by: Mohamed Abbas <mabbas@linux.intel.com>
Signed-off-by: Reinette Chatre <reinette.chatre@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
This patch prevents sending host commands when rfkill is on
Signed-off-by: Gregory Greenman <gregory.greenman@intel.com>
Signed-off-by: Tomas Winkler <tomas.winkler@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
The geos information is set up during probe and should only
be removed during pci_remove, not during _down.
This is a temporary fix until the setting of the status bits
have been cleaned up (to explicitly match all setting with
clearing of status bits).
Signed-off-by: Reinette Chatre <reinette.chatre@intel.com>
Signed-off-by: Tomas Winkler <tomas.winkler@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Enable workaround for poor link stalls by link quality instead of link
speed. Using link speed caused workaround be active always on 802.11b
networks which reduced performance and not even catch all stalls.
Signed-off-by: Jussi Kivilinna <jussi.kivilinna@mbnet.fi>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
when setting up the tx descriptors for the hardware we must account for any
padding between the header and the data we might have added previously. frame
len is the length of the frame in the air (including FCS but no padding) and
buffer len is the length of the buffer (including padding, but without FCS).
changing the way ah_setup_tx_desc is called: now excluding the FCS, since it's
easier to add that in the function where we need it.
before this fix we sent trailing zero bytes after the packet (because frame len
included the padding) which was not a big problem without WEP, but with WEP
this resultes in a wrong WEP checksum and the packet is discarded - which is
how i noticed at all ;)
an easy way to run into header padding problems, btw, is to connect to a QoS
(WME) enabled access point (eg. madwifi) - QoS data frames are 2 byte longer
and will require padding.
this patch applies on top of luis latest patch series from 04.02.2008.
drivers/net/wireless/ath5k/base.c: Changes-licensed-under: 3-Clause-BSD
drivers/net/wireless/ath5k/hw.c: Changes-licensed-under: ISC
Signed-off-by: Bruno Randolf <bruno@thinktube.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
With assists from Russell King <rmk+kernel@arm.linux.org.uk> and
Andrew Morton <akpm@linux-foundation.org>...
Signed-off-by: John W. Linville <linville@tuxdriver.com>
.. and I really need to call it something else. Maybe it is time to
bring back the weasel series, since weasels always make me feel good
about a kernel.
* 'for-linus' of master.kernel.org:/home/rmk/linux-2.6-arm: (30 commits)
[ARM] constify function pointer tables
[ARM] 4823/1: AT91 section fix
[ARM] 4824/1: pxa: clear RDH bit after any reset
[ARM] pxa: remove debugging PM: printk
ARM: OMAP1: Misc clean-up
ARM: OMAP1: Update defconfigs for omap1
ARM: OMAP1: Palm Tungsten E board clean-up
ARM: OMAP1: Use I2C bus registration helper for omap1
ARM: OMAP1: Remove omap_sram_idle()
ARM: OMAP1: PM fixes for OMAP1
ARM: OMAP1: Use MMC multislot structures for Siemens SX1 board
ARM: OMAP1: Make omap1 use MMC multislot structures
ARM: OMAP1: Change the comments to C style
ARM: OMAP1: Make omap1 boards to use omap_nand_platform_data
ARM: OMAP: Add helper module for board specific I2C bus registration
ARM: OMAP: Add dmtimer support for OMAP3
ARM: OMAP: Pre-3430 clean-up for dmtimer.c
ARM: OMAP: Add DMA support for chaining and 3430
ARM: OMAP: Add 24xx GPIO debounce support
ARM: OMAP: Get rid of unnecessary ifdefs in GPIO code
...
We want to allow different implementations of pci_raw_ops for standard
and extended config space on x86. Rather than clutter generic code with
knowledge of this, we make pci_raw_ops private to x86 and use it to
implement the new raw interface -- raw_pci_read() and raw_pci_write().
Signed-off-by: Matthew Wilcox <willy@linux.intel.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Thanks to Loic Prylli <loic@myri.com>, who originally proposed
this idea.
Always using legacy configuration mechanism for the legacy config space
and extended mechanism (mmconf) for the extended config space is
a simple and very logical approach. It's supposed to resolve all
known mmconf problems. It still allows per-device quirks (tweaking
dev->cfg_size). It also allows to get rid of mmconf fallback code.
Signed-off-by: Ivan Kokshaysky <ink@jurassic.park.msu.ru>
Signed-off-by: Matthew Wilcox <willy@linux.intel.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Commit 8811930dc7 ("splice: missing user
pointer access verification") added the proper access_ok() calls to
copy_from_user_mmap_sem() which ensures we can copy the struct iovecs
from userspace to the kernel.
But we also must check whether we can access the actual memory region
pointed to by the struct iovec to fix the access checks properly.
Signed-off-by: Bastian Blank <waldi@debian.org>
Acked-by: Oliver Pinter <oliver.pntr@gmail.com>
Cc: Jens Axboe <jens.axboe@oracle.com>
Cc: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Pekka Enberg <penberg@cs.helsinki.fi>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Commit 954415e33e ("[PKT_SCHED] ematch:
tcf_em_destroy robustness") removed a cast on em->data when
passing it to kfree(), but em->data is an integer type that can
hold pointers as well as other values so the cast is necessary.
Signed-off-by: David S. Miller <davem@davemloft.net>
hrtimer_nanosleep_restart() clears/restores restart_block->fn. This is
pointless and complicates its usage. Note that if sys_restart_syscall()
doesn't actually happen, we have a bogus "pending" restart->fn anyway,
this is harmless.
Signed-off-by: Oleg Nesterov <oleg@tv-sign.ru>
Cc: Alexey Dobriyan <adobriyan@sw.ru>
Cc: Pavel Emelyanov <xemul@sw.ru>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Toyo Abe <toyoa@mvista.com>
Cc: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Spotted by Pavel Emelyanov and Alexey Dobriyan.
compat_sys_nanosleep() implicitly uses hrtimer_nanosleep_restart(), this can't
work. Make a suitable compat_nanosleep_restart() helper.
Introduced by commit c70878b4e0
hrtimer: hook compat_sys_nanosleep up to high res timer code
Also, set ->addr_limit = KERNEL_DS before doing hrtimer_nanosleep(), this func
was changed by the previous patch and now takes the "__user *" parameter.
Thanks to Ingo Molnar for fixing the bug in this patch.
Signed-off-by: Oleg Nesterov <oleg@tv-sign.ru>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Alexey Dobriyan <adobriyan@sw.ru>
Cc: Pavel Emelyanov <xemul@sw.ru>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Toyo Abe <toyoa@mvista.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Spotted by Pavel Emelyanov and Alexey Dobriyan.
hrtimer_nanosleep() sets restart_block->arg1 = rmtp, but this rmtp points to
the local variable which lives in the caller's stack frame. This means that
if sys_restart_syscall() actually happens and it is interrupted as well, we
don't update the user-space variable, but write into the already dead stack
frame.
Introduced by commit 04c227140f
hrtimer: Rework hrtimer_nanosleep to make sys_compat_nanosleep easier
Change the callers to pass "__user *rmtp" to hrtimer_nanosleep(), and change
hrtimer_nanosleep() to use copy_to_user() to actually update *rmtp.
Small problem remains. man 2 nanosleep states that *rtmp should be written if
nanosleep() was interrupted (it says nothing whether it is OK to update *rmtp
if nanosleep returns 0), but (with or without this patch) we can dirty *rem
even if nanosleep() returns 0.
NOTE: this patch doesn't change compat_sys_nanosleep(), because it has other
bugs. Fixed by the next patch.
Signed-off-by: Oleg Nesterov <oleg@tv-sign.ru>
Cc: Alexey Dobriyan <adobriyan@sw.ru>
Cc: Michael Kerrisk <mtk.manpages@googlemail.com>
Cc: Pavel Emelyanov <xemul@sw.ru>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Toyo Abe <toyoa@mvista.com>
Cc: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
include/linux/hrtimer.h | 2 -
kernel/hrtimer.c | 51 +++++++++++++++++++++++++-----------------------
kernel/posix-timers.c | 14 +------------
3 files changed, 30 insertions(+), 37 deletions(-)
clocksource initialization and error accumulation. This corrects a 280ppm
drift seen on some systems using acpi_pm, and affects other clocksources as
well (likely to a lesser degree).
Signed-off-by: John Stultz <johnstul@us.ibm.com>
Cc: Roman Zippel <zippel@linux-m68k.org>
Cc: Steven Rostedt <rostedt@goodmis.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
htb_requeue() enqueues skbs for which htb_classify() returns NULL.
This is wrong because such skbs could be handled by NET_CLS_ACT code,
and the decision could be different than earlier in htb_enqueue().
So htb_requeue() is changed to work and look more like htb_enqueue().
Signed-off-by: Jarek Poplawski <jarkao2@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This patch replaces the explicit usage of the magic constant "1024"
with IP6_RT_PRIO_USER in the IPV6 tree.
Signed-off-by: Rami Rosen <ramirose@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
gcc-3.4.4 on powerpc:
drivers/net/starfire.c:219: error: version causes a section type conflict
Cc: Jeff Garzik <jeff@garzik.org>
Cc: Sam Ravnborg <sam@ravnborg.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
From: Andrew Morton <akpm@linux-foundation.org>
gcc-3.4.4 on powerpc:
drivers/net/via-velocity.c:443: error: chip_info_table causes a section type conflict
on this one I had to remove the __devinitdata too. Don't know why.
Cc: Jeff Garzik <jeff@garzik.org>
Cc: Sam Ravnborg <sam@ravnborg.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
gcc-3.4.4 on powerpc:
drivers/net/natsemi.c:245: error: natsemi_pci_info causes a section type conflict
Cc: Jeff Garzik <jeff@garzik.org>
Cc: Sam Ravnborg <sam@ravnborg.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
gcc-3.4.4 on powerpc:
drivers/net/typhoon.c:137: error: version causes a section type conflict
Cc: Jeff Garzik <jeff@garzik.org>
Cc: Sam Ravnborg <sam@ravnborg.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Fix following warnings:
WARNING: drivers/isdn/hisax/built-in.o(.text+0x19723): Section mismatch in reference from the function ISACVersion() to the variable .devinit.data:ISACVer
WARNING: drivers/isdn/hisax/built-in.o(.text+0x2005b): Section mismatch in reference from the function setup_avm_a1_pcmcia() to the function .devinit.text:setup_isac()
ISACVer were only used from function annotated __devinit
so add same annotation to ISACVer.
One af the fererencing functions missed __devinit so add it
and kill an additional warning.
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
Acked-by: Karsten Keil <kkeil@suse.de>
Cc: Jeff Garzik <jgarzik@pobox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Fix the following warnings:
WARNING: drivers/isdn/hisax/built-in.o(.text+0x722): Section mismatch in reference from the function hisax_cs_setup_card() to the function .devinit.text:setup_teles3()
WARNING: drivers/isdn/hisax/built-in.o(.text+0x72c): Section mismatch in reference from the function hisax_cs_setup_card() to the function .devinit.text:setup_s0box()
WARNING: drivers/isdn/hisax/built-in.o(.text+0x736): Section mismatch in reference from the function hisax_cs_setup_card() to the function .devinit.text:setup_telespci()
WARNING: drivers/isdn/hisax/built-in.o(.text+0x747): Section mismatch in reference from the function hisax_cs_setup_card() to the function .devinit.text:setup_avm_pcipnp()
WARNING: drivers/isdn/hisax/built-in.o(.text+0x74e): Section mismatch in reference from the function hisax_cs_setup_card() to the function .devinit.text:setup_elsa()
WARNING: drivers/isdn/hisax/built-in.o(.text+0x755): Section mismatch in reference from the function hisax_cs_setup_card() to the function .devinit.text:setup_diva()
WARNING: drivers/isdn/hisax/built-in.o(.text+0x75c): Section mismatch in reference from the function hisax_cs_setup_card() to the function .devinit.text:setup_sedlbauer()
WARNING: drivers/isdn/hisax/built-in.o(.text+0x763): Section mismatch in reference from the function hisax_cs_setup_card() to the function .devinit.text:setup_netjet_s()
WARNING: drivers/isdn/hisax/built-in.o(.text+0x76a): Section mismatch in reference from the function hisax_cs_setup_card() to the function .devinit.text:setup_hfcpci()
WARNING: drivers/isdn/hisax/built-in.o(.text+0x771): Section mismatch in reference from the function hisax_cs_setup_card() to the function .devinit.text:setup_hfcsx()
WARNING: drivers/isdn/hisax/built-in.o(.text+0x778): Section mismatch in reference from the function hisax_cs_setup_card() to the function .devinit.text:setup_niccy()
WARNING: drivers/isdn/hisax/built-in.o(.text+0x77f): Section mismatch in reference from the function hisax_cs_setup_card() to the function .devinit.text:setup_bkm_a4t()
WARNING: drivers/isdn/hisax/built-in.o(.text+0x786): Section mismatch in reference from the function hisax_cs_setup_card() to the function .devinit.text:setup_sct_quadro()
WARNING: drivers/isdn/hisax/built-in.o(.text+0x78d): Section mismatch in reference from the function hisax_cs_setup_card() to the function .devinit.text:setup_gazel()
WARNING: drivers/isdn/hisax/built-in.o(.text+0x794): Section mismatch in reference from the function hisax_cs_setup_card() to the function .devinit.text:setup_w6692()
WARNING: drivers/isdn/hisax/built-in.o(.text+0x79b): Section mismatch in reference from the function hisax_cs_setup_card() to the function .devinit.text:setup_netjet_u()
WARNING: drivers/isdn/hisax/built-in.o(.text+0x7a2): Section mismatch in reference from the function hisax_cs_setup_card() to the function .devinit.text:setup_enternow_pci()
checkcard() are the only user of hisax_cs_setup_card().
And checkcard is only used during init or when hot plugging
ISDN devices. So annotate hisax_cs_setup_card() with __devinit.
checkcard() is used by exported functions so it cannot be
annotated __devinit. Annotate it with __ref so modpost
ignore references to _devinit section.
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
Acked-by: Karsten Keil <kkeil@suse.de>
Cc: Jeff Garzik <jgarzik@pobox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Fix the following warnings:
WARNING: drivers/isdn/hisax/built-in.o(.text+0x1b276): Section mismatch in reference from the function inithscxisac() to the function .devinit.text:clear_pending_isac_ints()
WARNING: drivers/isdn/hisax/built-in.o(.text+0x1b286): Section mismatch in reference from the function inithscxisac() to the function .devinit.text:initisac()
WARNING: drivers/isdn/hisax/built-in.o(.text+0x1fec7): Section mismatch in reference from the function AVM_card_msg() to the function .devinit.text:clear_pending_isac_ints()
WARNING: drivers/isdn/hisax/built-in.o(.text+0x21669): Section mismatch in reference from the function AVM_card_msg() to the function .devinit.text:clear_pending_isac_ints()
WARNING: drivers/isdn/hisax/built-in.o(.text+0x21671): Section mismatch in reference from the function AVM_card_msg() to the function .devinit.text:initisac()
WARNING: drivers/isdn/hisax/built-in.o(.text+0x2991e): Section mismatch in reference from the function Sedl_card_msg() to the function .devinit.text:clear_pending_isac_ints()
WARNING: drivers/isdn/hisax/built-in.o(.text+0x29936): Section mismatch in reference from the function Sedl_card_msg() to the function .devinit.text:initisac()
WARNING: drivers/isdn/hisax/built-in.o(.text+0x2993e): Section mismatch in reference from the function Sedl_card_msg() to the function .devinit.text:initisar()
WARNING: drivers/isdn/hisax/built-in.o(.text+0x2e026): Section mismatch in reference from the function NETjet_S_card_msg() to the function .devinit.text:clear_pending_isac_ints()
WARNING: drivers/isdn/hisax/built-in.o(.text+0x2e02e): Section mismatch in reference from the function NETjet_S_card_msg() to the function .devinit.text:initisac()
WARNING: drivers/isdn/hisax/built-in.o(.text+0x37813): Section mismatch in reference from the function BKM_card_msg() to the function .devinit.text:clear_pending_isac_ints()
WARNING: drivers/isdn/hisax/built-in.o(.text+0x37823): Section mismatch in reference from the function BKM_card_msg() to the function .devinit.text:initisac()
initisar(), initisac() and clear_pending_isac_ints()
were all used via a cardmsg fnction - which may be called
ouside __devinit context.
So remove the bogus __devinit annotation of the
above three functions to fix the warnings.
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
Acked-by: Karsten Keil <kkeil@suse.de>
Cc: Jeff Garzik <jgarzik@pobox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
* 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4:
ext4: Add new "development flag" to the ext4 filesystem
ext4: Don't panic in case of corrupt bitmap
ext4: allocate struct ext4_allocation_context from a kmem cache
JBD2: Clear buffer_ordered flag for barried IO request on success
ext4: Fix Direct I/O locking
ext4: Fix circular locking dependency with migrate and rm.
allow in-inode EAs on ext4 root inode
ext4: Fix null bh pointer dereference in mballoc
ext4: Don't set EXTENTS_FL flag for fast symlinks
JBD2: Use the incompat macro for testing the incompat feature.
jbd2: Fix reference counting on the journal commit block's buffer head
[PATCH] jbd: Remove useless loop when writing commit record
jbd2: Add error check to journal_wait_on_commit_record to avoid oops
Fix the following warning:
WARNING: drivers/isdn/hisax/built-in.o(.text+0x35818): Section mismatch in reference from the function hfcsx_card_msg() to the function .devinit.text:inithfcsx()
hfcsx_card_msg() may be called outside __devinit context.
Following the program logic is looks like the CARD_INIT branch
will only be taken under __devinit context but to be consistent
remove the __devinit annotation of inithfcsx() so we
do not mix non-__devinit and __devinit code.
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
Acked-by: Karsten Keil <kkeil@suse.de>
Cc: Jeff Garzik <jgarzik@pobox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Make the code in tcf_em_tree_destroy more robust and cleaner:
* Don't need to cast pointer to kfree() or avoid passing NULL.
* After freeing the tree, clear the pointer to avoid possible problems
from repeated free.
Signed-off-by: Stephen Hemminger <shemminger@vyatta.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
A couple of functions in meta match don't need to be inline.
Signed-off-by: Stephen Hemminger <shemminger@vyatta.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This makes the code use a good proc API and the text ~50 bytes shorter.
Signed-off-by: Pavel Emelyanov <xemul@openvz.org>
Acked-by: Vlad Yasevich <vladislav.yasevich@hp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
SCPT already depends in INET, so this doesn't create additional
dependencies.
Signed-off-by: Pavel Emelyanov <xemul@openvz.org>
Acked-by: Vlad Yasevich <vladislav.yasevich@hp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
The seq files API disposes the caller of the difficulty of
checking file position, the length of data to produce and
the size of provided buffer.
Signed-off-by: Pavel Emelyanov <xemul@openvz.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Mainly this removes ifdef-s from inside the ipsec_pfkey_init.
Signed-off-by: Pavel Emelyanov <xemul@openvz.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
drivers/net/pppol2tp.c: In function `pppol2tp_seq_tunnel_show':
drivers/net/pppol2tp.c:2295: warning: long long unsigned int format, __u64 arg (arg 4)
drivers/net/pppol2tp.c:2295: warning: long long unsigned int format, __u64 arg (arg 5)
drivers/net/pppol2tp.c:2295: warning: long long unsigned int format, __u64 arg (arg 6)
drivers/net/pppol2tp.c:2295: warning: long long unsigned int format, __u64 arg (arg 7)
drivers/net/pppol2tp.c:2295: warning: long long unsigned int format, __u64 arg (arg 8)
drivers/net/pppol2tp.c:2295: warning: long long unsigned int format, __u64 arg (arg 9)
drivers/net/pppol2tp.c: In function `pppol2tp_seq_session_show':
drivers/net/pppol2tp.c:2328: warning: long long unsigned int format, __u64 arg (arg 5)
drivers/net/pppol2tp.c:2328: warning: long long unsigned int format, __u64 arg (arg 6)
drivers/net/pppol2tp.c:2328: warning: long long unsigned int format, __u64 arg (arg 7)
drivers/net/pppol2tp.c:2328: warning: long long unsigned int format, __u64 arg (arg 8)
drivers/net/pppol2tp.c:2328: warning: long long unsigned int format, __u64 arg (arg 9)
drivers/net/pppol2tp.c:2328: warning: long long unsigned int format, __u64 arg (arg 10)
Not all platforms implement u64 with unsigned long long. eg: powerpc.
Cc: Jeff Garzik <jeff@garzik.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
gcc-3.4.4 on powerpc:
drivers/net/bnx2.c:67: error: version causes a section type conflict
Cc: Jeff Garzik <jeff@garzik.org>
Cc: Sam Ravnborg <sam@ravnborg.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
From: Andrew Morton <akpm@linux-foundation.org>
gcc-3.4.4 on powerpc:
drivers/net/bnx2x.c:73: error: version causes a section type conflict
Cc: Jeff Garzik <jeff@garzik.org>
Cc: Sam Ravnborg <sam@ravnborg.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
This flag is simply a generic "this is a crash/burn test filesystem"
marker. If it is set, then filesystem code which is "in development"
will be allowed to mount the filesystem. Filesystem code which is not
considered ready for prime-time will check for this flag, and if it is
not set, it will refuse to touch the filesystem.
As we start rolling ext4 out to distro's like Fedora, et. al, this makes
it less likely that a user might accidentally start using ext4 on a
production filesystem; a bad thing, since that will essentially make it
be unfsckable until e2fsprogs catches up.
Signed-off-by: Theodore Tso <tytso@MIT.EDU>
Signed-off-by: Mingming Cao <cmm@us.ibm.com>
