- Oct 31, 2005
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Paul Jackson authored
A couple of (char *) casts removed in a previous cleanup patch in lib/string.c:memmove() were actually useful, as they suppressed a couple of warnings: assignment discards qualifiers from pointer target type Fix by declaring the local variable const in the first place, so casts aren't needed to strip the const qualifier. Signed-off-by:
Paul Jackson <pj@sgi.com> Signed-off-by:
Andrew Morton <akpm@osdl.org> Signed-off-by:
Linus Torvalds <torvalds@osdl.org>
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Matt Mackall authored
From: Hareesh Nagarajan <hnagar2@gmail.com> Signed-off-by:
Hareesh Nagarajan <hnagar2@gmail.com> Acked-by:
Matt Mackall <mpm@selenic.com> Signed-off-by:
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Andrew Morton authored
If a filesystem passes an idiotic blocksize into bread(), __getblk_slow() will warn and will return NULL. We have a report (from Hubert Tonneau <hubert.tonneau@fullpliant.org>) of isofs_fill_super() doing this (passing in a silly block size) against an unplugged CDROM drive. But a couple of __getblk_slow() callers forgot to check for the NULL bh, hence oops. Signed-off-by:
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Arthur Othieno authored
__MUTEX_INITIALIZER() has no users, and equates to the more commonly used DECLARE_MUTEX(), thus making it pretty much redundant. Remove it for good. Signed-off-by:
Arthur Othieno <a.othieno@bluewin.ch> Signed-off-by:
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Bjorn Helgaas authored
The driver had incorrectly wrapped module_init(rp_init) in #ifdef MODULE, so it worked only when compiled as a module. Tested by Wolfgang Denk with this device: 00:0e.0 Communication controller: Comtrol Corporation RocketPort 8 port w/RJ11 connectors (rev 04) Control: I/O+ Mem- BusMaster- SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- Status: Cap- 66Mhz- UDF- FastB2B- ParErr- DEVSEL=slow >TAbort- <TAbort- <MAbort- >SERR- <PERR- Interrupt: pin A routed to IRQ 11 Region 0: I/O ports at 7000 [size=64] Signed-off-by:Bjorn Helgaas <bjorn.helgaas@hp.com> Signed-off-by:
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Roland McGrath authored
This change corrects an omission in posix_cpu_timer_schedule, so that it correctly propagates the overrun calculation to where it will get reported to the user. Signed-off-by:
Roland McGrath <roland@redhat.com> Signed-off-by:
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Paul E. McKenney authored
This patch is a rewrite of the one submitted on October 1st, using modules (http://marc.theaimsgroup.com/?l=linux-kernel&m=112819093522998&w=2 ). This rewrite adds a tristate CONFIG_RCU_TORTURE_TEST, which enables an intense torture test of the RCU infratructure. This is needed due to the continued changes to the RCU infrastructure to accommodate dynamic ticks, CPU hotplug, realtime, and so on. Most of the code is in a separate file that is compiled only if the CONFIG variable is set. Documentation on how to run the test and interpret the output is also included. This code has been tested on i386 and ppc64, and an earlier version of the code has received extensive testing on a number of architectures as part of the PREEMPT_RT patchset. Signed-off-by:
"Paul E. McKenney" <paulmck@us.ibm.com> Signed-off-by:
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Alexey Dobriyan authored
Signed-off-by:
Alexey Dobriyan <adobriyan@gmail.com> Signed-off-by:
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Nikita Danilov authored
Fix comment describing BUILD_BUG_ON: BUG_ON is not an assertion (unfortunately). Signed-off-by:
Nikita Danilov <nikita@clusterfs.com> Signed-off-by:
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Laurent Riffard authored
This updates .owner field of struct pci_driver. This allows SYSFS to create the symlink from the driver to the module which provides it. Signed-off-by:
Laurent Riffard <laurent.riffard@free.fr> Acked-by:
Alan Cox <alan@redhat.com> Signed-off-by:
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Laurent Riffard authored
This updates .owner field of struct pci_driver. This allows SYSFS to create the symlink from the driver to the module which provides it. Signed-off-by:
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Laurent Riffard authored
This updates .owner field of struct pci_driver. This allows SYSFS to create the symlink from the driver to the module which provides it. Signed-off-by:
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Pozsar Balazs authored
This patch fixes a long-standing vgacon bug: characters with the bright bit set were left on the screen and not blacked out. All I did was that I lookuped up some examples on the net about setting the vga palette, and added the call missing from the linux kernel, but included in all other ones. It works for me. You can test this by writing something with the bright set to the console, for example: echo -e "\e[1;31mhello there\e[0m" and then wait for the console to blank itself (by default, after 10 mins of inactivity), maybe making it faster using setterm -blank 1 so you only have to wait 1 minute. Signed-off-by:
Pozsar Balazs <pozsy@uhulinux.hu> Cc: James Simmons <jsimmons@infradead.org> Cc: "Antonino A. Daplas" <adaplas@pol.net> Signed-off-by:
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Glauber de Oliveira Costa authored
This patch adds tests for the return value of sb_getblk() in the ext2/3 filesystems. In fs/buffer.c it is stated that the getblk() function never fails. However, it does can return NULL in some situations due to I/O errors, which may lead us to NULL pointer dereferences Signed-off-by:
Glauber de Oliveira Costa <glommer@br.ibm.com> Signed-off-by:
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Andrea Arcangeli authored
list_move(&inode->i_list, &inode_in_use); } else { list_move(&inode->i_list, &inode_unused); + inodes_stat.nr_unused++; } } wake_up_inode(inode); Are you sure the above diff is correct? It was added somewhere between 2.6.5 and 2.6.8. I think it's wrong. The only way I can imagine the i_count to be zero in the above path, is that I_WILL_FREE is set. And if I_WILL_FREE is set, then we must not increase nr_unused. So I believe the above change is buggy and it will definitely overstate the number of unused inodes and it should be backed out. Note that __writeback_single_inode before calling __sync_single_inode, can drop the spinlock and we can have both the dirty and locked bitflags clear here: spin_unlock(&inode_lock); __wait_on_inode(inode); iput(inode); XXXXXXX spin_lock(&inode_lock); } use inode again here a construct like the above makes zero sense from a reference counting standpoint. Either we don't ever use the inode again after the iput, or the inode_lock should be taken _before_ executing the iput (i.e. a __iput would be required). Taking the inode_lock after iput means the iget was useless if we keep using the inode after the iput. So the only chance the 2.6 was safe to call __writeback_single_inode with the i_count == 0, is that I_WILL_FREE is set (I_WILL_FREE will prevent the VM to free the inode in XXXXX). Potentially calling the above iput with I_WILL_FREE was also wrong because it would recurse in iput_final (the second mainline bug). The below (untested) patch fixes the nr_unused accounting, avoids recursing in iput when I_WILL_FREE is set and makes sure (with the BUG_ON) that we don't corrupt memory and that all holders that don't set I_WILL_FREE, keeps a reference on the inode! Signed-off-by:Andrea Arcangeli <andrea@suse.de> Signed-off-by:
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Pavel Roskin authored
sparse complains about every MODULE_PARM used in a module: warning: symbol '__parm_foo' was not declared. Should it be static? The fix is to split declaration and initialization. While MODULE_PARM is obsolete, it's not something sparse should report. Signed-off-by:
Pavel Roskin <proski@gnu.org> Signed-off-by:
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Nicolas Pitre authored
They aren't used anywhere in that file. Signed-off-by:
Nicolas Pitre <nico@cam.org> Signed-off-by:
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Andrew Morton authored
Because people can play games reprogramming keys and leaving traps for the next user of the console. Signed-off-by:
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Randy Dunlap authored
Convert existing function docs to kernel-doc format. Eliminate all kernel-doc warnings. Fix some doc typos and a little whitespace cleanup. Signed-off-by:
Randy Dunlap <rdunlap@xenotime.net> Signed-off-by:
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Thomas Gleixner authored
Define jiffies_64 in kernel/timer.c rather than having 24 duplicated defines in each architecture. Signed-off-by:
Thomas Gleixner <tglx@linutronix.de> Signed-off-by:
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Brian Gerst authored
This ioctl doesn't exist for native i386. Signed-off-by:
Brian Gerst <bgerst@didntduck.org> Signed-off-by:
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Ben Dooks authored
Fix warnings from sparse due to un-declared functions that should either have a header file or have been declared static fs/ext2/bitmap.c:14:15: warning: symbol 'ext2_count_free' was not declared. Should it be static? fs/ext2/namei.c:92:15: warning: symbol 'ext2_get_parent' was not declared. Should it be static? fs/ext3/bitmap.c:15:15: warning: symbol 'ext3_count_free' was not declared. Should it be static? fs/ext3/namei.c:1013:15: warning: symbol 'ext3_get_parent' was not declared. Should it be static? fs/ext3/xattr.c:214:1: warning: symbol 'ext3_xattr_block_get' was not declared. Should it be static? fs/ext3/xattr.c:358:1: warning: symbol 'ext3_xattr_block_list' was not declared. Should it be static? fs/ext3/xattr.c:630:1: warning: symbol 'ext3_xattr_block_find' was not declared. Should it be static? fs/ext3/xattr.c:863:1: warning: symbol 'ext3_xattr_ibody_find' was not declared. Should it be static? Signed-off-by:
Ben Dooks <ben-linux@fluff.org> Signed-off-by:
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Mark Gross authored
Signed-off-by:
Mark Gross <mgross@linux.intel.com> Signed-off-by:
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Oleg Nesterov authored
de_thread() sends SIGKILL to all sub-threads and waits them to die in 'D' state. It is possible that one of the threads already dequeued coredump signal. When de_thread() unlocks ->sighand->lock that thread can enter do_coredump()->coredump_wait() and cause a deadlock. Signed-off-by:
Oleg Nesterov <oleg@tv-sign.ru> Cc: Roland McGrath <roland@redhat.com> Signed-off-by:
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Carlos Sanchez authored
Added a Receive_Abort to the Marvell serial driver Fix occasional input overrun errors on Marvell serial driver - If the Marvell serial driver is repeatedly started and then stopped it will occasionally report an input overrun error when started. - Added a Receive_Abort to the Marvell serial driver to abort previously received receive errors when re-starting the receive Acked-by:
Mark A. Greer <mgreer@mvista.com> Signed-off-by:
Carlos Sanchez <csanchez@mvista.com> Cc: Russell King <rmk@arm.linux.org.uk> Signed-off-by:
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Miklos Szeredi authored
Setting ctime is implicit in all setattr cases, so the FATTR_CTIME definition is unnecessary. It is used by neither the kernel nor by userspace. Signed-off-by:
Miklos Szeredi <miklos@szeredi.hu> Signed-off-by:
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Miklos Szeredi authored
Correct some typos and inconsistent use of "initialise" vs "initialize" in comments. Reported by Ioannis Barkas. Signed-off-by:
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Jesper Juhl authored
Fix-up the CONFIG_FRAME_POINTER help text language a bit. Signed-off-by:
Jesper Juhl <jesper.juhl@gmail.com> Signed-off-by:
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Roland McGrath authored
Back about a year ago when I last fiddled heavily with the do_wait code, I was thinking too hard about the wrong thing and I now think I introduced a bug whose inverse thought I was fixing. Apparently noone was looking too hard over much shoulder, so as to cite my bogus reasoning at the time. In the race condition when PTRACE_ATTACH is about to steal a child and then the child hits a tracing event (what my_ptrace_child checks for), the real parent does need to set its flag noting it has some eligible live children. Otherwise a spurious ECHILD error is possible, since the child in question is not yet on the ptrace_children list. Signed-off-by:
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Pat Gefre authored
Various small mods for the Altix ioc4 serial driver - mostly cleanup: - remove UIF_INITIALIZED usage - use the 'lock' from uart_port - better multiple card support Signed-off-by:
Patrick Gefre <pfg@sgi.com> Signed-off-by:
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Glauber de Oliveira Costa authored
I noticed some problems while running ext3 with the debug flag set on. More precisely, I was unable to umount the filesystem. Some investigation took me to the patch that follows. At a first glance , the lock/unlock I've taken out seems really not necessary, as the main code (outside debug) does not lock the super. The only additional danger operations that debug code introduces seems to be related to bitmap, but bitmap operations tends to be all atomic anyway. I also took the opportunity to fix 2 spelling errors. Signed-off-by:
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Oleg Nesterov authored
This patch deletes pointless code from coredump_wait(). 1. It does useless mm->core_waiters inc/dec under mm->mmap_sem, but any changes to ->core_waiters have no effect until we drop ->mmap_sem. 2. It calls yield() for absolutely unknown reason. Signed-off-by:
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Coywolf Qi Hunt authored
The PF_DEAD setting doesn't belong to exit_notify(), move it to a proper place. Signed-off-by:
Coywolf Qi Hunt <qiyong@fc-cn.com> Signed-off-by:
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Jesper Juhl authored
- Removes some trailing whitespace - Breaks long lines and make other small changes to conform to CodingStyle - Add explicit printk loglevels in two places. Signed-off-by:
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Jesper Juhl authored
Remove some unneeded casts. Avoid an assignment in the case of kmalloc failure. Break a few instances of if (foo) whatever; into two lines. Signed-off-by:
Jens Axboe <axboe@suse.de> Signed-off-by:
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David Howells authored
The attached patch gets rid of a "statement without effect" warning when CONFIG_KEYS is disabled by making use of the return value of key_get(). The compiler will optimise all of this away when keys are disabled. Signed-Off-By:
David Howells <dhowells@redhat.com> Signed-off-by:
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David Howells authored
The attached patch adds LSM hooks for key management facilities. The notable changes are: (1) The key struct now supports a security pointer for the use of security modules. This will permit key labelling and restrictions on which programs may access a key. (2) Security modules get a chance to note (or abort) the allocation of a key. (3) The key permission checking can now be enhanced by the security modules; the permissions check consults LSM if all other checks bear out. (4) The key permissions checking functions now return an error code rather than a boolean value. (5) An extra permission has been added to govern the modification of attributes (UID, GID, permissions). Note that there isn't an LSM hook specifically for each keyctl() operation, but rather the permissions hook allows control of individual operations based on the permission request bits. Key management access control through LSM is enabled by automatically if both CONFIG_KEYS and CONFIG_SECURITY are enabled. This should be applied on top of the patch ensubjected: [PATCH] Keys: Possessor permissions should be additive Signed-Off-By:Chris Wright <chrisw@osdl.org> Signed-off-by:
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David Howells authored
Export user-defined key operations so that those who wish to define their own key type based on the user-defined key operations may do so (as has been requested). The header file created has been placed into include/keys/user-type.h, thus creating a directory where other key types may also be placed. Any objections to doing this? Signed-Off-By:
Arjan van de Ven <arjan@infradead.org> Signed-off-by:
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Tejun Heo authored
This patch removes page_pte_prot and page_pte macros from all architectures. Some architectures define both, some only page_pte (broken) and others none. These macros are not used anywhere. page_pte_prot(page, prot) is identical to mk_pte(page, prot) and page_pte(page) is identical to page_pte_prot(page, __pgprot(0)). * The following architectures define both page_pte_prot and page_pte arm, arm26, ia64, sh64, sparc, sparc64 * The following architectures define only page_pte (broken) frv, i386, m32r, mips, sh, x86-64 * All other architectures define neither Signed-off-by:
Tejun Heo <htejun@gmail.com> Signed-off-by:
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Tejun Heo authored
This patch removes redundant assignment from __pagevec_release_nonlru(). pages_to_free.cold is set to pvec->cold by pagevec_init() call right above the assignment. Signed-off-by:
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