- 31 Jul, 2008 2 commits
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Louis Rilling authored
The rule for configfs symlinks is that symlinks always point to valid config_items, and prevent the target from being removed. However, configfs_symlink() only checks that it can grab a reference on the target item, without ensuring that it remains alive until the symlink is correctly attached. This patch makes configfs_symlink() fail whenever the target is being removed, using the CONFIGFS_USET_DROPPING flag set by configfs_detach_prep() and protected by configfs_dirent_lock. This patch introduces a similar (weird?) behavior as with mkdir failures making rmdir fail: if symlink() races with rmdir() of the parent directory (or its youngest user-created ancestor if parent is a default group) or rmdir() of the target directory, and then fails in configfs_create(), this can make the racing rmdir() fail despite the concerned directory having no user-created entry (resp. no symlink pointing to it or one of its default groups) in the end. This behavior is fixed in later patches. Signed-off-by:
Louis Rilling <louis.rilling@kerlabs.com> Signed-off-by:
Joel Becker <joel.becker@oracle.com> Signed-off-by:
Mark Fasheh <mfasheh@suse.com>
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Joel Becker authored
We now use PTR_ERR() in the ->make_item() and ->make_group() operations. Folks including configfs.h need err.h. Signed-off-by:
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- 30 Jul, 2008 38 commits
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Linus Torvalds authored
The iov_iter_advance() function would look at the iov->iov_len entry even though it might have iterated over the whole array, and iov was pointing past the end. This would cause DEBUG_PAGEALLOC to trigger a kernel page fault if the allocation was at the end of a page, and the next page was unallocated. The quick fix is to just change the order of the tests: check that there is any iovec data left before we check the iov entry itself. Thanks to Alexey Dobriyan for finding this case, and testing the fix. Reported-and-tested-by:
Alexey Dobriyan <adobriyan@gmail.com> Cc: Nick Piggin <npiggin@suse.de> Cc: Andrew Morton <akpm@linux-foundation.org> Cc: <stable@kernel.org> [2.6.25.x, 2.6.26.x] Signed-off-by:
Linus Torvalds <torvalds@linux-foundation.org>
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Linus Torvalds authored
We zero-fill them like we are supposed to, and that's all fine. It's only an error if the 'romfs_copyfrom()' routine isn't able to fill the data that is supposed to be there. Most of the patch is really just re-organizing the code a bit, and using separate variables for the error value and for how much of the page we actually filled from the filesystem. Reported-and-tested-by:
Chris Fester <cfester@wms.com> Cc: Alexander Viro <viro@zeniv.linux.org.uk> Cc: Matt Waddel <matt.waddel@freescale.com> Cc: Greg Ungerer <gerg@snapgear.com> Signed-of-by:
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git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpcLinus Torvalds authored
* 'merge' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc: powerpc/mm: Lockless get_user_pages_fast() for 64-bit (v3) powerpc: Don't use the wrong thread_struct for ptrace get/set VSX regs powerpc: Fix ptrace buffer size for VSX powerpc: Correctly hookup PTRACE_GET/SETVSRREGS for 32 bit processes ide/powermac: Fix use of uninitialized pointer on media-bay powerpc: Allow non-hcall return values for lparcfg writes ipmi/powerpc: Use linux/of_{device,platform}.h instead of asm powerpc/fsl: proliferate simple-bus compatibility to soc nodes Documentation: remove old sbc8260 board specific information cpm2: Rework baud rate generators configuration to support external clocks. powerpc: rtc_cmos_setup: assign interrupts only if there is i8259 PIC cpm_uart: Add generic clock API support to set baudrates cpm_uart: Modem control lines support powerpc: implement GPIO LIB API on CPM1 Freescale SoC. cpm2: Implement GPIO LIB API on CPM2 Freescale SoC. powerpc: Fix 8xx build failure powerpc: clean up the Book-E HW watchpoint support
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Stephen Rothwell authored
when you take the address of the result. Noticed on a sparc64 compile using a version 3.4.5 cross compiler. kernel/time/tick-common.c: In function `tick_check_new_device': kernel/time/tick-common.c:210: error: invalid lvalue in unary `&' ... Just make it a regular expression. Signed-off-by:
Stephen Rothwell <sfr@canb.auug.org.au> Acked-by:
Ingo Molnar <mingo@elte.hu> Signed-off-by:
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git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6Linus Torvalds authored
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6: (47 commits) net: Make "networking" one-click deselectable. ipv6: Fix useless proc net sockstat6 removal tcp: MD5: Use MIB counter instead of warning for MD5 mismatch. pkt_sched: Fix OOPS on ingress qdisc add. niu: Fix error checking in niu_ethflow_to_class. IPv6: datagram_send_ctl() should exit immediately when an error occured mac80211: fix mesh beaconing PS3: gelic: use unsigned long for irqflags mac80211: fix cfg80211 hooks for master interface nl80211: fix dump callbacks mac80211: partially fix skb->cb use rtl8187: Improve wireless statistics for RTL8187B rtl8187: Fix for TX sequence number problem mac80211: append CONFIG_ to MAC80211_VERBOSE_PS_DEBUG in net/mac80211/tx.c. mac80211: fix sparse integer as NULL pointer warning drivers/net/wireless/iwlwifi/iwl-led.c: printk fix mac80211: return correct error return from ieee80211_wep_init mac80211: tx, use dev_kfree_skb_any for beacon_get rt2x00: Clear queue entry flags during initialization rt2x00: Force full register config after start() ...
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Vitaly Mayatskikh authored
New ALIGN_DESTINATION macro has sad typo: r8d register was used instead of ecx in fixup section. This can be considered as a regression. Register ecx was also wrongly loaded with value in r8d in copy_user_nocache routine. Signed-off-by:
Vitaly Mayatskikh <v.mayatskih@gmail.com> Signed-off-by:
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Dean Nelson authored
Setup the notify GRU message queue that is used for sending user messages on UV systems. Signed-off-by:
Dean Nelson <dcn@sgi.com> Cc: Jack Steiner <steiner@sgi.com> Cc: "Luck, Tony" <tony.luck@intel.com> Signed-off-by:
Andrew Morton <akpm@linux-foundation.org> Signed-off-by:
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Dean Nelson authored
Setup the activate GRU message queue that is used for partition activation and channel connection on UV systems. Signed-off-by:
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Dean Nelson authored
Cleanup naming of partition defines. Signed-off-by:
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Dean Nelson authored
Move xpc_check_remote_hb() so it can support both SN2 and UV. Signed-off-by:
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Dean Nelson authored
Add UV support to xpc_remote_memcpy(), which involves interfacing to the GRU driver. Signed-off-by:
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Dean Nelson authored
Get XPC/XPNET to build on x86_64. Trying to modprobe them up on a non-UV or sn2 system will result in a -ENODEV. Signed-off-by:
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Dean Nelson authored
Rename XPC's reserved page's timestamp member to reflect the units of time involved. Signed-off-by:
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Dean Nelson authored
Change sgi-xp to use the standard bitops macros and functions instead of trying to invent its own mechanism. Signed-off-by:
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Dean Nelson authored
Comments in /drivers/misc/sgi-xp has been using '>>>' as a means to draw attention to something that needs to be done or considered. To avoid colliding with git rejects, '>>>' will now be replaced by '!!!' to indicate something to do, and by '???' to indicate something to be considered. Signed-off-by:
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Dean Nelson authored
Add an '_sn2' suffix to some variables found in xpc_sn2.c. Signed-off-by:
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Dean Nelson authored
Make the remote copy buffer an sn2 only item. Signed-off-by:
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Dean Nelson authored
Enable XPNET to support more than 64 partitions. Signed-off-by:
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Dean Nelson authored
Move the allocation of XPC's msgqueues to xpc_sn2.c. Signed-off-by:
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Dean Nelson authored
Replace the AMO_t typedef by a direct reference to 'struct amo'. Signed-off-by:
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Dean Nelson authored
Tie current IPI references to either XPC's notify IRQ or channel control flags. Signed-off-by:
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Dean Nelson authored
Move additional sn2 specific code into xpc_sn2.c. Signed-off-by:
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Dean Nelson authored
Isolate architecture specific code related to XPC's activate IRQ. Signed-off-by:
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Dean Nelson authored
Move xpc_allocate() functionality into xpc_send()/xpc_send_notify() so xpc_allocate() no longer needs to be called by XPNET. Signed-off-by:
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Dean Nelson authored
Change XPC's reserved page timestamp to be based on jiffies. Signed-off-by:
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Dean Nelson authored
Isolate the xpc_vars structure of XPC's reserved page to sn2 only. Signed-off-by:
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Dean Nelson authored
Isolate the xpc_vars_part structure of XPC's reserved page to sn2 only. Signed-off-by:
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Dean Nelson authored
Prepare XPC's reserved page header to work for either sn2 or uv. Signed-off-by:
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Dean Nelson authored
Create a common remote memcpy function that maps to what the hardware booted supports. Signed-off-by:
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Dean Nelson authored
Support runtime selection of the max number of partitions based on the hardware being run on. Signed-off-by:
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Dean Nelson authored
Add a BYTES_PER_WORD #define. Signed-off-by:
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Dean Nelson authored
Define xpSalError reason code. Signed-off-by:
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Dean Nelson authored
Define the is_shub()/is_uv() macros if they've not already been defined. Signed-off-by:
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Jack Steiner authored
Fixes problems identified in a code review: - add comment with high level dscription of the GRU - prepend "gru_" to all global names - delete unused function - couple of trivial bug fixes [akpm@linux-foundation.org: coding-style fixes] Signed-off-by:
Jack Steiner <steiner@sgi.com> Cc: Nick Piggin <nickpiggin@yahoo.com.au> Signed-off-by:
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Jack Steiner authored
Driver/misc changes for the GRU driver Signed-off-by:
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Jack Steiner authored
Exports needed by the GRU driver. Signed-off-by:
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Jack Steiner authored
This patch adds the GRU driver makefile Signed-off-by:
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Jack Steiner authored
This file contains the functions for handlinf GRU TLB flushing, This includes functions to handle the MMUOPS callouts. Signed-off-by:
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