- 11 Feb, 2007 40 commits
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Jiri Slaby authored
Loop only 100^2 times, not 99999^2 times in isr (at most). Signed-off-by:
Jiri Slaby <jirislaby@gmail.com> Signed-off-by:
Andrew Morton <akpm@linux-foundation.org> Signed-off-by:
Linus Torvalds <torvalds@linux-foundation.org>
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Jiri Slaby authored
- Remove no longer used macros - Move some macros from the header to the code - Remove c++ comments - Align backslashes to one column Signed-off-by:
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Jiri Slaby authored
Avoid oopsing when stress-testing open/close -- port->tty is NULL sometimes, but is expected to be non-NULL, since dereferencing. Receive/transmit chars iff ASYNC_CLOSING is not set and ASYNC_INITIALIZED is set. Thanks Sergei for pointing this out and testing. Cc: Sergei Organov <osv@javad.com> Signed-off-by:
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Jiri Slaby authored
Isicom driver no longer registers chardev with ioctl function. It used to use for firmware loading. Remove the reserved letter (M) from ioctl-number, so that the conflict get away. Signed-off-by:
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Jiri Slaby authored
We always set ASYNC_SHARE_IRQ, so do not test against this flag and request shared irq directly. Also remove nonsense comment. Signed-off-by:
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Jiri Slaby authored
It's safe to call tty_wakeup from irq context. Do not schedule it for later calling. Signed-off-by:
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Jiri Slaby authored
Mark v 1.x as obsolete and v 2.x as non-experimental in Kconfig. Signed-off-by:
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Jiri Slaby authored
- nobody waits on close_wait - ASYNC_SPLIT_TERMIOS is not set by anybody, so do not test this flag - process session and pgrp are useless information Signed-off-by:
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David Brownell authored
The PNP framework doesn't export "pnp_bus_type", which is an unfortunate exception to the policy followed by pretty much every other bus. I noticed this when I had to find a device in order to provide its platform_data. Note that per advice from Arjan, the "export" scope has been been minimized to avoid the hundred-plus bytes needed to support access from modules. In this case, the symbol is only needed by statically linked kernel code that lives outside the drivers/pnp directory. Signed-off-by:
David Brownell <dbrownell@users.sourceforge.net> Cc: Adam Belay <ambx1@neo.rr.com> Signed-off-by:
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Thomas Maier authored
- update documentation - use clear_bdi_congested/set_bdi_congested functions directly instead of old wrappers - removed DECLARE_BUF_AS_STRING macro Signed-off-by:
Thomas Maier <balagi@justmail.de> Cc: Peter Osterlund <petero2@telia.com> Signed-off-by:
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Alexey Dobriyan authored
Use attribute(weak). Signed-off-by:
Alexey Dobriyan <adobriyan@openvz.org> Acked-by:
Ingo Molnar <mingo@elte.hu> Signed-off-by:
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Jiri Slaby authored
- Lindent the code - allow semicolons after macros by 'do {} while (0)' - eliminate C++ comments Signed-off-by: -
Jiri Slaby authored
serial167, cleanup - Lindent the code - remove 3 pointers from paranoia_check Signed-off-by:
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Jiri Slaby authored
gm_lock is useless, since ISA is configured at init time and there it's serialized. Signed-off-by:
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Jiri Slaby authored
Mark some funcions with __init and __devinit. Signed-off-by:
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Eric Sandeen authored
This one was pointed out on the MOKB site: http://kernelfun.blogspot.com/2006/11/mokb-09-11-2006-linux-26x-ext2checkpage.html If a directory's i_size is corrupted, ext2_find_entry() will keep processing pages until the i_size is reached, even if there are no more blocks associated with the directory inode. This patch puts in some minimal sanity-checking so that we don't keep checking pages (and issuing errors) if we know there can be no more data to read, based on the block count of the directory inode. This is somewhat similar in approach to the ext3 patch I sent earlier this year. Signed-off-by:
Eric Sandeen <sandeen@redhat.com> Signed-off-by:
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Mathieu Desnoyers authored
Mathieu originally needed to add this for tracing Xen, but it's something that's needed for any application that can be tracing while cpus are added. unplug isn't supported by this patch. The thought was that at minumum a new buffer needs to be added when a cpu comes up, but it wasn't worth the effort to remove buffers on cpu down since they'd be freed soon anyway when the channel was closed. [zanussi@us.ibm.com: avoid lock_cpu_hotplug deadlock] Signed-off-by:
Mathieu Desnoyers <mathieu.desnoyers@polymtl.ca> Cc: Tom Zanussi <zanussi@us.ibm.com> Signed-off-by:
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Atsushi Nemoto authored
Update the serial_txx9 driver. * Configurable manumum port number. (SERIAL_TXX9_NR_UARTS) * Remove some code which is unneeded if CONFIG_PM=n. * Use PCI_DEVICE() for pci device id table and make it const. * Do not include <asm/irq.h> Signed-off-by:
Atsushi Nemoto <anemo@mba.ocn.ne.jp> Signed-off-by:
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Robert P. J. Day authored
Replace appropriate pairs of "kmem_cache_alloc()" + "memset(0)" with the corresponding "kmem_cache_zalloc()" call. Signed-off-by:
Robert P. J. Day <rpjday@mindspring.com> Cc: "Luck, Tony" <tony.luck@intel.com> Cc: Andi Kleen <ak@muc.de> Cc: Roland McGrath <roland@redhat.com> Cc: James Bottomley <James.Bottomley@steeleye.com> Cc: Greg KH <greg@kroah.com> Acked-by:
Joel Becker <Joel.Becker@oracle.com> Cc: Steven Whitehouse <swhiteho@redhat.com> Cc: Jan Kara <jack@ucw.cz> Cc: Michael Halcrow <mhalcrow@us.ibm.com> Cc: "David S. Miller" <davem@davemloft.net> Cc: Stephen Smalley <sds@tycho.nsa.gov> Cc: James Morris <jmorris@namei.org> Cc: Chris Wright <chrisw@sous-sol.org> Signed-off-by:
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Adrian Bunk authored
Add proper prototypes for two functions in drivers/char/vc_screen.c Signed-off-by:
Adrian Bunk <bunk@stusta.de> Signed-off-by:
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Mike Frysinger authored
Userspace should be worrying about userspace, so having the socket.h and stat.h pollute the namespace in the non-glibc case is wrong and pretty much prevents any other libc from utilizing these headers sanely unless they set up the __GLIBC__ define themselves (which sucks) Cc: "David S. Miller" <davem@davemloft.net> Signed-off-by:
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Tilman Schmidt authored
The line discipline numbers N_* are currently defined for each architecture individually, but (except for a seeming mistake) identically, in asm/termios.h. There is no obvious reason why these numbers should be architecture specific, nor any apparent relationship with the termios structure. The total number of these, NR_LDISCS, is defined in linux/tty.h anyway. So I propose the following patch which moves the definitions of the individual line disciplines to linux/tty.h too. Three of these numbers (N_MASC, N_PROFIBUS_FDL, and N_SMSBLOCK) are unused in the current kernel, but the patch still keeps the complete set in case there are plans to use them yet. Signed-off-by:
Tilman Schmidt <tilman@imap.cc> Cc: <linux-arch@vger.kernel.org> Signed-off-by:
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Jan Blunck authored
When igrab() is calling __iget() on an inode it should check if clear_inode() has been called on the inode already. Otherwise there is a race window between clear_inode() and destroy_inode() where igrab() calls __iget() which leads to already free inodes on the inode lists. Signed-off-by:
Vandana Rungta <vandana@novell.com> Signed-off-by:
Jan Blunck <jblunck@suse.de> Cc: Al Viro <viro@zeniv.linux.org.uk> Cc: Neil Brown <neilb@suse.de> Signed-off-by:
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Jason Baron authored
Generate locking graph information into /proc/lockdep, for lock hierarchy documentation and visualization purposes. sample output: c089fd5c OPS: 138 FD: 14 BD: 1 --..: &tty->termios_mutex -> [c07a3430] tty_ldisc_lock -> [c07a37f0] &port_lock_key -> [c07afdc0] &rq->rq_lock_key#2 The lock classes listed are all the first-hop lock dependencies that lockdep has seen so far. Signed-off-by:
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Jarek Poplawski authored
- returns after DEBUG_LOCKS_WARN_ON added in 3 places - debug_locks checking after lookup_chain_cache() added in __lock_acquire() - locking for testing and changing global variable max_lockdep_depth added in __lock_acquire() From: Ingo Molnar <mingo@elte.hu> My __acquire_lock() cleanup introduced a locking bug: on SMP systems we'd release a non-owned graph lock. Fix this by moving the graph unlock back, and by leaving the max_lockdep_depth variable update possibly racy. (we dont care, it's just statistics) Also add some minimal debugging code to graph_unlock()/graph_lock(), which caught this locking bug. Signed-off-by:
Jarek Poplawski <jarkao2@o2.pl> Signed-off-by:
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Ingo Molnar authored
kmem_cache_free() was missing the check for freeing held locks. Signed-off-by:
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Oleg Nesterov authored
Kill acquired_tasklist_lock, sig_needs_tasklist() is very cheap nowadays. Signed-off-by:
Oleg Nesterov <oleg@tv-sign.ru> Cc: "Eric W. Biederman" <ebiederm@xmission.com> Signed-off-by:
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Jiri Slaby authored
tty_wakeup cleanup - remove wake_up_interruptible(&tty->write_wait) surrounding tty_wakup(tty); - substitute tty->ldisc.write_wakeup(tty) + wake_up() by tty_wakeup(tty); Signed-off-by:
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Jiri Slaby authored
Don't forget to decrease card_count in fail paths and in remove function. Also null board->base in such cases to point out, that this structure is unused and thus can be reassigned. Signed-off-by:
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Jiri Slaby authored
Add support for higher baud rates (coming from original isi driver). Signed-off-by:
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Jiri Slaby authored
Check if the card really interrupted us by reading its IO space and eventualy return IRQ_NONE. Signed-off-by:
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Jiri Slaby authored
isicom, augment card_reset - add 0xee to signatures - change long delays to sleeps - make one sleep shorter not to wait 3s - portcount == 16 is also correct Signed-off-by:
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Jiri Slaby authored
2 spin_unlocks are omitted in the interrupt handler. Put them there to fix up deadlocking on UP. Signed-off-by:
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Adrian Bunk authored
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Andreas Jaggi authored
Removes an unused and ambiguous redefinition of INIT_WORK() Signed-off-by:
Andreas Jaggi <andreas.jaggi@waterwave.ch> Acked-by:
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Eric Dumazet authored
I added IS_NOATIME(inode) macro definition in include/linux/fs.h, true if the inode superblock is marked readonly or noatime. This new macro is then used in touch_atime() instead of separatly testing MS_RDONLY and MS_NOATIME Signed-off-by:
Eric Dumazet <dada1@cosmosbay.com> Signed-off-by:
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Eric Dumazet authored
I noticed cache misses in touch_atime() that can be avoided if we keep mnt_count & mnt_expiry_mark in a different cache line than mnt_flags (mostly read) mnt_count & mnt_expiry_mark are modified each time a file is opened/closed in a file system. touch_atime() is called each time a file is read, and generally needs to read mnt_flags. Other fields of struct vfsmount are mostly read so I chose to move mnt_count & mnt_expiry_mark at the end of struct vfsmount. And adding a comment so that nobody tries to re-arrange fields to fill the holes :) On 64bits platforms, the new offsetof(mnt_count) is 0xC0 On 32bits platforms, it is 0x60, so I didnot add a ____cacheline_aligned_in_smp because it would have a too big impact on the size of this object (in particular if CONFIG_X86_L1_CACHE_SHIFT=7) Signed-off-by:
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Jiri Slaby authored
- tty_hangup() itself schedules work, so there is no need to schedule hangup in the driver - tty_wakeup(): it's safe to call it while in atomic, so that its schedule_work might be also wiped out Signed-off-by:
Alan Cox <alan@redhat.com> Signed-off-by:
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Brent Casavant authored
The SGI IOC3 and IOC4 PCI devices implement memory space apertures, not I/O space apertures. Use the appropriate region management functions. Signed-off-by:
Brent Casavant <bcasavan@sgi.com> Cc: Pat Gefre <pfg@sgi.com> Cc: Stanislaw Skowronek <skylark@linux-mips.org> Cc: Brent Casavant <bcasavan@sgi.com> Acked-by:
Ralf Baechle <ralf@linux-mips.org> Signed-off-by:
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Luciano Rocha authored
Extend usr/gen_init_cpio.c "file" entry, adding support for hard links. Previous format: file <name> <location> <mode> <uid> <gid> New format: file <name> <location> <mode> <uid> <gid> [<hard links>] The hard links specification is optional, keeping the previous behaviour. All hard links are defined sequentially in the resulting cpio and the file data is present only in the last link. This is the behaviour of GNU's cpio and is supported by the kernel initramfs extractor. Signed-off-by:
Luciano Rocha <strange@nsk.no-ip.org> Cc: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by:
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