Commit Graph

95745 Commits

Author SHA1 Message Date
Sebastian Siewior
db11e47dd7 USB: ISP1760 HCD driver
This driver has been written from scratch and supports the ISP1760. ISP1761
might (should) work as well but the OTG isn't supported. Also ISO packets are
not. However, it works on my little PowerPC board.

Signed-off-by: Sebastian Siewior <bigeasy@linutronix.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-05-02 10:25:50 -07:00
Linus Torvalds
886c35fbcf Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ieee1394/linux1394-2.6
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ieee1394/linux1394-2.6:
  firewire: fw-sbp2: log scsi_target ID at release
  ieee1394: fix NULL pointer dereference in sysfs access
2008-05-01 11:31:38 -07:00
Linus Torvalds
6ed7b6a05d Merge git://git.kernel.org/pub/scm/linux/kernel/git/sam/kbuild-linus
* git://git.kernel.org/pub/scm/linux/kernel/git/sam/kbuild-linus:
  kbuild: fix vmlinux.o link
  kconfig: made check-lxdialog more portable
2008-05-01 11:31:24 -07:00
Linus Torvalds
2c4aabcca8 Merge git://git.infradead.org/mtd-2.6
* git://git.infradead.org/mtd-2.6:
  [MTD][NOR] Add physical address to point() method
  [JFFS2] Track parent inode for directories (for NFS export)
  [JFFS2] Invert last argument of jffs2_gc_fetch_inode(), make it boolean.
  [JFFS2] Quiet lockdep false positive.
  [JFFS2] Clean up jffs2_alloc_inode() and jffs2_i_init_once()
  [MTD] Delete long-unused jedec.h header file.
  [MTD] [NAND] at91_nand: use at91_nand_{en,dis}able consistently.
2008-05-01 11:15:28 -07:00
Jared Hulbert
a98889f3d8 [MTD][NOR] Add physical address to point() method
Adding the ability to get a physical address from point() in addition
to virtual address.  This physical address is required for XIP of
userspace code from flash.

Signed-off-by: Jared Hulbert <jaredeh@gmail.com>
Reviewed-by: Jörn Engel <joern@logfs.org>
Acked-by: Nicolas Pitre <nico@cam.org>
Acked-by: Greg Ungerer <gerg@uclinux.org>
Signed-off-by: David Woodhouse <dwmw2@infradead.org>
2008-05-01 18:59:11 +01:00
Stefan Richter
f32ddaddf9 firewire: fw-sbp2: log scsi_target ID at release
Makes the good-by message more informative.

Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
Signed-off-by: Jarod Wilson <jwilson@redhat.com>
2008-05-01 19:55:24 +02:00
Stefan Richter
07c7224cf7 ieee1394: fix NULL pointer dereference in sysfs access
Regression since "ieee1394: prevent device binding of raw1394,
video1394, dv1394", commit d2ace29fa4:
$ cat /sys/bus/ieee1394/drivers/raw1394/device_ids
triggers a NULL pointer dereference in fw_show_drv_device_ids.
Reported by Miles Lane.

Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
Tested-by: Miles Lane <miles.lane@gmail.com>
2008-05-01 19:55:23 +02:00
David Woodhouse
27c72b040c [JFFS2] Track parent inode for directories (for NFS export)
To support NFS export, we need to know the parent inode of directories.
Rather than growing the jffs2_inode_cache structure, share space with
the nlink field -- which was always set to 1 for directories anyway.

Signed-off-by: David Woodhouse <dwmw2@infradead.org>
2008-05-01 18:47:17 +01:00
Sam Ravnborg
90ebd878a5 kbuild: fix vmlinux.o link
We always linked vmliux.o.
Remove init/built-in.o dependency so we avoid this

Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2008-05-01 19:31:35 +02:00
Sam Ravnborg
b44158de9e kconfig: made check-lxdialog more portable
OS-X shell did not like 'echo -e' so implement
suggestion from Al Viro to use a more portable construct.

Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
Cc: Al Viro <viro@ZenIV.linux.org.uk>
Acked-By: Timur Tabi <timur@freescale.com>
2008-05-01 19:29:47 +02:00
Christoph Hellwig
bcf35afb52 make generic sys_ptrace unconditional
With s390 the last arch switched to the generic sys_ptrace yesterday so
we can now kill the ifdef around it to enforce every new port it using
it instead of introducing new weirdo versions.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-05-01 10:21:54 -07:00
David Woodhouse
1b690b4878 [JFFS2] Invert last argument of jffs2_gc_fetch_inode(), make it boolean.
We don't actually care about nlink; we only care whether the inode in
question is unlinked or not.

Signed-off-by: David Woodhouse <dwmw2@infradead.org>
2008-05-01 17:24:28 +01:00
Linus Torvalds
9fc3ace937 Merge git://git.kernel.org/pub/scm/linux/kernel/git/bart/ide-2.6
* git://git.kernel.org/pub/scm/linux/kernel/git/bart/ide-2.6:
  ide: fix early setup of hwif->host_flags
2008-05-01 08:45:19 -07:00
Linus Torvalds
c92758ceda Merge branch 'release' of git://lm-sensors.org/kernel/mhoffman/hwmon-2.6
* 'release' of git://lm-sensors.org/kernel/mhoffman/hwmon-2.6:
  hwmon: (adt7473) minor cleanup / refactoring
  hwmon: (asb100) Remove some dead code
  hwmon: (lm75) Fix an incorrect comment
  hwmon: (w83793) VID and VRM handling cleanups
  hwmon: (w83l785ts) Don't ask the user to report failures
  hwmon: (smsc47b397) add a new chip id (0x8c)
2008-05-01 08:28:26 -07:00
Linus Torvalds
03fc922f40 Merge git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linux-2.6-for-linus
* git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linux-2.6-for-linus:
  module: add MODULE_STATE_GOING notifier call
  module: Enhance verify_export_symbols
  module: set unused_gpl_crcs instead of overwriting unused_crcs
  module: neaten __find_symbol, rename to find_symbol
  module: reduce module image and resident size
  module: make module_sect_attrs private to kernel/module.c
2008-05-01 08:26:56 -07:00
Linus Torvalds
a0be7522b2 Merge git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6
* git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6:
  [CRYPTO] cryptd: Correct kzalloc error test
  [CRYPTO] eseqiv: Fix off-by-one encryption
  [CRYPTO] api: Fix scatterwalk_sg_chain
  [CRYPTO] authenc: Fix async crypto crash in crypto_authenc_genicv()
2008-05-01 08:15:36 -07:00
Sebastian Siewior
3b2b74cad3 m68knommu: fix FEC driver locking
It's easy: grab locks before talking to hardware and realease
them afterwards. The one big lock has been splitted into a hw_lock
and mii_lock.

Signed-off-by: Sebastian Siewior <bigeasy@linutronix.de>
Signed-off-by: Greg Ungerer <gerg@uclinux.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-05-01 08:08:36 -07:00
Sebastian Siewior
c1d9615680 m68knommu: kill warnings in FEC driver
linux-2.6-mk68/drivers/net/fec.c: In function 'fec_enet_module_init':
linux-2.6-mk68/drivers/net/fec.c:2627: warning: unused variable 'j'
linux-2.6-mk68/drivers/net/fec.c: At top level:
linux-2.6-mk68/drivers/net/fec.c:2136: warning: 'mii_link_interrupt' defined but not used

Signed-off-by: Sebastian Siewior <bigeasy@linutronix.de>
Signed-off-by: Greg Ungerer <gerg@uclinux.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-05-01 08:08:36 -07:00
Greg Ungerer
398ec922b9 m68knommu: remove unused interrupts in FEC driver
Remove the acquisition of unused interrupt types. We don't need to
register all the TX and RX varients used on some ColdFire FEC hardware.

Signed-off-by: Greg Ungerer <gerg@uclinux.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-05-01 08:08:36 -07:00
Greg Ungerer
cc462f7df0 m68knommu: fix ColdFire 5272 fec driver hash registers
Renamed the 5272 hash_table registers to match the "grp" hash_table
registers of the other ColdFire parts. They are actually a group hash.
The makes for consistent setup across all ColdFire parts.

Signed-off-by: Greg Ungerer <gerg@uclinux.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-05-01 08:08:36 -07:00
Sebastian Siewior
6c5a7d504f m68knommu: fix compare race in sched related code
The interrupts must be disabled before considering the need resched
bit of the task struct and they have to be disabled before calling
schedule()

Signed-off-by: Sebastian Siewior <bigeasy@linutronix.de>
Signed-off-by: Greg Ungerer <gerg@uclinux.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-05-01 08:08:36 -07:00
Greg Ungerer
0042a1f7ec m68knommu: rework definition of HZ
Rework the HZ definition to be more consistent with other architectures.
Non-kernel includers will see a constant HZ setting of 100.

Signed-off-by: Greg Ungerer <gerg@uclinux.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-05-01 08:08:36 -07:00
Sebastian Siewior
6cca491731 m68knommu: update MAX_M68K_DMA_CHANNELS for some plattforms
include/asm-m68knommu/mcfdma.h defines base0-3 for M523x,
M527x and M528x so it looks this has been forgotten.

Signed-off-by: Sebastian Siewior <bigeasy@linutronix.de>
Signed-off-by: Greg Ungerer <gerg@uclinux.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-05-01 08:08:36 -07:00
Greg Ungerer
cff28b56bd m68knommu: remove unused CONFIG_DISKtel
Remove unused CONFIG_DISKtel support.
Missing config definition pointed out by
Robert P. J. Day <rpjday@mindspring.com>

Signed-off-by: Greg Ungerer <gerg@uclinux.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-05-01 08:08:36 -07:00
Steve Bennett
188a9a4841 m68knommu: add WilFire and WildfireMod board support
This patch adds linux-2.6.x kernel support for the Intec Automation
ColdFire 5282-based boards, the WildFire and WildFireMod

Signed-Off-By: Steve Bennett <steveb@workware.net.au>
Signed-off-by: Greg Ungerer <gerg@uclinux.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-05-01 08:08:36 -07:00
Greg Ungerer
653620d619 m68knommu: remove unused CONFIG_MTD_KeyTechnology
Remove unused board type CONFIG_MTD_KeyTechnology.
Pointed out by Robert P. J. Day <rpjday@mindspring.com>

Signed-off-by: Greg Ungerer <gerg@uclinux.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-05-01 08:08:35 -07:00
Greg Ungerer
d259c32983 m68knommu: fix 5206e UART init function naming
Fix ColdFire 5206e platform UART init function naming.

Signed-off-by: Greg Ungerer <gerg@uclinux.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-05-01 08:08:35 -07:00
Sebastian Siewior
779125c274 m68knommu: add some missing sections into the linker script
Add some missing sections into the linker script.
Those are required for spinlocks & kallsyms.

Signed-off-by: Sebastian Siewior <bigeasy@linutronix.de>
Signed-off-by: Greg Ungerer <gerg@uclinux.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-05-01 08:08:35 -07:00
Sebastian Siewior
f6054e2131 m68knommu: add pretty back strace
With this patch and
 CONFIG_FRAME_POINTER=y
 CONFIG_KALLSYMS=y
The backtrace shows resolved function names and their numeric
address.

Signed-off-by: Sebastian Siewior <bigeasy@linutronix.de>
Signed-off-by: Greg Ungerer <gerg@uclinux.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-05-01 08:08:35 -07:00
Sebastian Siewior
008150f537 m68knommu: add a missing backslash n in setup code
add a missing backslash n in setup code

Signed-off-by: Sebastian Siewior <bigeasy@linutronix.de>
Signed-off-by: Greg Ungerer <gerg@uclinux.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-05-01 08:08:35 -07:00
Sebastian Siewior
a19325a774 m68knommu: ColdFire add support for kernel preemption
As the subject says this patch adds the support for kernel preemption
on m68knommu Coldfire. I thing the same changes could be applied to
68360 & 68328 but since I don't have the HW for testing, I don't touch it.

Signed-off-by: Sebastian Siewior <bigeasy@linutronix.de>
Signed-off-by: Greg Ungerer <gerg@uclinux.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-05-01 08:08:35 -07:00
Wilson Callan
2d7f16d6d1 m68knommu: fix signal handling return path
The return from software signal handling pushes code on the stack
that system calls to the kernels cleanup code. This is borrowed
directly from the m68k linux signal handler.

The rt signal case is not quite right for the restricted instruction
set of the ColdFire parts. And neither the normal signal case or rt
signal case properly flushes/pushes the appropriate cache lines.

Rework the return path to just call back through some code fragments
in the kernel proper (with no MMU in the way we can do this). No
cache problems, and less code overall.

Original patch submitted by Wilson Callan <wcallan@savantav.com>

Greg fixed the rt signal return path to use the proper system call

Signed-off-by: Greg Ungerer <gerg@uclinux.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-05-01 08:08:35 -07:00
Andrew Morton
10ed2195bb drivers/scsi/mvsas.c: fix printk warnings
drivers/scsi/mvsas.c: In function `mvs_update_phyinfo':
drivers/scsi/mvsas.c:2822: warning: long long unsigned int format, u64 arg (arg 5)
drivers/scsi/mvsas.c:2822: warning: long long unsigned int format, u64 arg (arg 6)

We do not know what type the arch uses to implement u64.

Cc: Ke Wei <kewei@marvell.com>
Cc: James Bottomley <James.Bottomley@HansenPartnership.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-05-01 08:04:03 -07:00
Andrew Morton
726792b26b drivers/scsi/ncr53c8xx.c: fix warning
drivers/scsi/ncr53c8xx.c: In function 'process_waiting_list':
drivers/scsi/ncr53c8xx.c:8225: warning: suggest parentheses around assignment used as truth value

recently added by

commit 172c122df5
Author: Harvey Harrison <harvey.harrison@gmail.com>
Date:   Mon Apr 28 16:50:03 2008 -0700

    scsi: fix integer as NULL pointer warnings

Cc: James Bottomley <James.Bottomley@HansenPartnership.com>
Cc: Harvey Harrison <harvey.harrison@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-05-01 08:04:02 -07:00
Andrew Morton
5098021e1e drivers-char-synclinkc-inbreak-mgsl_put_char-fix
Cc: Alan Cox <alan@lxorguk.ukuu.org.uk>
Cc: Jiri Slaby <jirislaby@gmail.com>
Cc: Paul Fulghum <paulkf@microgate.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-05-01 08:04:02 -07:00
Andrew Morton
076482307f drivers/char/synclink.c: unbreak mgsl_put_char()
Repair the effects of

commit 55da77899c
Author: Alan Cox <alan@lxorguk.ukuu.org.uk>
Date:   Wed Apr 30 00:54:07 2008 -0700

    synclink series: switch to int put_char method

    Signed-off-by: Alan Cox <alan@redhat.com>
    Cc: Paul Fulghum <paulkf@microgate.com>
    Cc: Jiri Slaby <jirislaby@gmail.com>

drivers/char/synclink_gt.c: In function 'put_char':
drivers/char/synclink_gt.c:919: warning: 'ret' may be used uninitialized in this function

and do some whitespace repair and unneeded-cast-removal in there as well.

Cc: Paul Fulghum <paulkf@microgate.com>
Cc: Alan Cox <alan@lxorguk.ukuu.org.uk>
Cc: Jiri Slaby <jirislaby@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-05-01 08:04:02 -07:00
Harvey Harrison
24c03d47d0 block: remove remaining __FUNCTION__ occurrences
__FUNCTION__ is gcc specific, use __func__

Signed-off-by: Harvey Harrison <harvey.harrison@gmail.com>
Cc: Jens Axboe <jens.axboe@oracle.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-05-01 08:04:02 -07:00
Mike Travis
e37d05dad7 cpu: change cpu_sys_devices from array to per_cpu variable
Change cpu_sys_devices from array to per_cpu variable in drivers/base/cpu.c.

Signed-off-by: Mike Travis <travis@sgi.com>
Cc: Ashok Raj <ashok.raj@intel.com>
Cc: Vivek Goyal <vgoyal@in.ibm.com>
Cc: Greg Kroah-Hartman <gregkh@suse.de>
Cc: Suresh Siddha <suresh.b.siddha@intel.com>
Cc: Kay Sievers <kay.sievers@vrfy.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-05-01 08:04:02 -07:00
Harvey Harrison
bd7309677c fuse: use clamp() rather than nested min/max
clamp() exists for this use.

Signed-off-by: Harvey Harrison <harvey.harrison@gmail.com>
Cc: Miklos Szeredi <miklos@szeredi.hu>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-05-01 08:04:02 -07:00
Denis V. Lunev
3dfcf9c4bf cciss: assign PDE->data before gluing PDE into /proc tree
Simply replace proc_create and further data assigned with proc_create_data.

Signed-off-by: Denis V. Lunev <den@openvz.org>
Cc: Alexey Dobriyan <adobriyan@openvz.org>
Cc: Eric W. Biederman <ebiederm@xmission.com>
Acked-by: Mike Miller <mike.miller@hp.com>
Cc: Greg Kroah-Hartman <gregkh@suse.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-05-01 08:04:02 -07:00
Andrew Liu
8a3e77cc21 workqueue: remove redundant function invocation
timer_stats_timer_set_start_info is invoked twice, additionally, the
invocation of this function can be moved to where it is only called when a
delay is really required.

Signed-off-by: Andrew Liu <shengping.liu@windriver.com>
Cc: Pavel Machek <pavel@ucw.cz>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: Oleg Nesterov <oleg@tv-sign.ru>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-05-01 08:04:02 -07:00
Balaji Rao
55e462b05b memcg: simple stats for memory resource controller
Implement trivial statistics for the memory resource controller.

Signed-off-by: Balaji Rao <balajirrao@gmail.com>
Acked-by: Balbir Singh <balbir@linux.vnet.ibm.com>
Cc: Dhaval Giani <dhaval@linux.vnet.ibm.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-05-01 08:04:02 -07:00
Will Newton
f39e578172 gpio: pca953x: add support for pca9555 I2C I/O expander
Add support for pca9555 I2C I/O expander.  As the comment suggests this part
is software compatible with the pca9539.

Signed-off-by: Will Newton <will.newton@imgtec.com>
Cc: "eric miao" <eric.miao@marvell.com>
Cc: David Brownell <david-b@pacbell.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-05-01 08:04:01 -07:00
Jan Blunck
868eb7a853 autofs: path_{get,put}() cleanups
Here are some more places where path_{get,put}() can be used instead of
dput()/mntput() pair.  Besides that it fixes a bug in autofs4_mount_busy()
where mntput() was called before dput().

Signed-off-by: Jan Blunck <jblunck@suse.de>
Cc: Ian Kent <raven@themaw.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-05-01 08:04:01 -07:00
Jeff Moyer
9d2de6ad2a autofs4: fix incorrect return from root.c:try_to_fill_dentry()
Jeff Moyer has identified a case where the autofs4 function
root.c:try_to_fill_dentry() can return -EBUSY when it should return 0.

Jeff's description of the way this happens is:

"automount starts an expire for directory d.  after the callout to the daemon,
but before the rmdir, another process tries to walk into the same directory.
It puts itself onto the waitq, pending the expiration.

When the expire finishes, the second process is woken up.  In
try_to_fill_dentry, it does this check:

                status = d_invalidate(dentry);
                if (status != -EBUSY)
                        return -EAGAIN;

And status is EBUSY.  The dentry still has a non-zero d_inode, and the
flags do not contain LOOKUP_CONTINUE or LOOKUP_DIRECTORY

So, we fall through and return -EBUSY to the caller."

Signed-off-by: Jeff Moyer <jmoyer@redhat.com>
Signed-off-by: Ian Kent <raven@themaw.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-05-01 08:04:01 -07:00
Jeff Moyer
033790449b autofs4: fix execution order race in mount request code
Jeff Moyer has identified a race in due to an execution order dependency
in the autofs4 function root.c:try_to_fill_dentry().

Jeff's description of this race is:

"P1 does a lookup of /mount/submount/foo.  Since the VFS can't find an entry
for "foo" under /mount/submount, it calls into the autofs4 kernel module to
allocate a new dentry, D1.  The kernel creates a new waitq for this lookup and
calls the daemon to perform the mount.

The daemon performs a mkdir of the "foo" directory under /mount/submount,
which ends up creating a *new* dentry, D2.

Then, P2 does a lookup of /mount/submount/foo.  The VFS path walking logic
finds a dentry in the dcache, D2, and calls the revalidate function with this.
 In the autofs4 revalidate code, we then trigger a mount, since the dentry is
an empty directory that isn't a mountpoint, and so set DCACHE_AUTOFS_PENDING
and call into the wait code to trigger the mount.

The wait code finds our existing waitq entry (since it is keyed off of the
directory name) and adds itself to the list of waiters.

After the daemon finishes the mount, it calls back into the kernel to release
the waiters.  When this happens, P1 is woken up and goes about clearing the
DCACHE_AUTOFS_PENDING flag, but it does this in D1!  So, given that P1 in our
case is a program that will immediately try to access a file under
/mount/submount/foo, we end up finding the dentry D2 which still has the
pending flag set, and we set out to wait for a mount *again*!

So, one way to address this is to re-do the lookup at the end of
try_to_fill_dentry, and to clear the pending flag on the hashed dentry.  This
seems a sane approach to me."

And Jeff's patch does this.

Signed-off-by: Jeff Moyer <jmoyer@redhat.com>
Signed-off-by-by: Ian Kent <raven@themaw.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-05-01 08:04:01 -07:00
Ian Kent
cab0936aac autofs4: check for invalid dentry in getpath
Catch invalid dentry when calculating its path.

Signed-off-by: Ian Kent <raven@themaw.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-05-01 08:04:01 -07:00
Ian Kent
afec570c32 autofs4: fix sparse warning in waitq.c:autofs4_expire_indirect()
Re-order some code in expire.c:autofs4_expire_indirect() to avoid compile
warning, reported by Harvey Harrison:

 CHECK   fs/autofs4/expire.c
fs/autofs4/expire.c:383:2: warning: context imbalance in
'autofs4_expire_indirect' - unexpected unlock

Signed-off-by: Ian Kent <raven@themaw.net>
Reviewed-by: Harvey Harrison <harvey.harrison@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-05-01 08:04:01 -07:00
Jan Kara
c32e026efc quota: add a convenience macro for filesystems
Note that it cannot be an inline function because we don't have struct
super_block prototype...

Signed-off-by: Jan Kara <jack@suse.cz>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-05-01 08:04:01 -07:00
Matthew Wilcox
0d34aa4d5a spi_s3c24xx signedness fix
On Fri, Apr 18, 2008 at 09:08:55PM +0200, Julia Lawall wrote:
> I found 63 occurrences of this problem with the following semantic match
> (http://www.emn.fr/x-info/coccinelle/):
>
> @@ unsigned int i; @@
>
> * i < 0
>

Since this one's always in the range 0-255, it could probably be made
signed, but it's just as easy to make it work unsigned.

Reported-by: Julia Lawall <julia@diku.dk>
Signed-off-by: Matthew Wilcox <willy@linux.intel.com>
Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-05-01 08:04:01 -07:00