linux/lib, branch v2.6.17-rc6

[PATCH] kobject: quiet errors in kobject_add

2006-05-21T19:59:21Z

People don't like released kernels yelling at them, no matter how real the error might be. So only report it if CONFIG_KOBJECT_DEBUG is enabled. Sent on request of Andrew Morton. (akpm: should bring this back post-2.6.17) Signed-off-by: Greg Kroah-Hartman Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds

[SPARC]: Handle UNWIND_INFO properly.

2006-05-12T19:45:50Z

For sparc32 we need R_SPARC_UA32 relocation support, for sparc64 we need the handle R_SPARC_DISP32 relocations. Based upon reports and initial patch by Martin Habets. Signed-off-by: David S. Miller

[PATCH] Kobject: possible cleanups

2006-04-27T20:08:56Z

This patch contains the following possible cleanups: - #if 0 the following unused global function: - subsys_remove_file() - remove the following unused EXPORT_SYMBOL's: - kset_find_obj - subsystem_init - remove the following unused EXPORT_SYMBOL_GPL: - kobject_add_dir Signed-off-by: Adrian Bunk Signed-off-by: Greg Kroah-Hartman

[PATCH] Kobject: fix build error

2006-04-27T20:08:56Z

This fixes a build error for various odd combinations of CONFIG_HOTPLUG and CONFIG_NET. Signed-off-by: Kay Sievers Cc: Nigel Cunningham Cc: Andrew Morton Signed-off-by: Greg Kroah-Hartman

[PATCH] Kconfig.debug: Set DEBUG_MUTEX to off by default

2006-04-19T16:13:51Z

DEBUG_MUTEX flag is on by default in current kernel configuration. During performance testing, we saw mutex debug functions like mutex_debug_check_no_locks_freed (called by kfree()) is expensive as it goes through a global list of memory areas with mutex lock and do the checking. For benchmarks such as Volanomark and Hackbench, we have seen more than 40% drop in performance on some platforms. We suggest to set DEBUG_MUTEX off by default. Or at least do that later when we feel that the mutex changes in the current code have stabilized. Signed-off-by: Tim Chen Cc: Ingo Molnar Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds

[PATCH] sysfs: Allow sysfs attribute files to be pollable

2006-04-14T18:41:24Z

It works like this: Open the file Read all the contents. Call poll requesting POLLERR or POLLPRI (so select/exceptfds works) When poll returns, close the file and go to top of loop. or lseek to start of file and go back to the 'read'. Events are signaled by an object manager calling sysfs_notify(kobj, dir, attr); If the dir is non-NULL, it is used to find a subdirectory which contains the attribute (presumably created by sysfs_create_group). This has a cost of one int per attribute, one wait_queuehead per kobject, one int per open file. The name "sysfs_notify" may be confused with the inotify functionality. Maybe it would be nice to support inotify for sysfs attributes as well? This patch also uses sysfs_notify to allow /sys/block/md*/md/sync_action to be pollable Signed-off-by: Neil Brown Signed-off-by: Greg Kroah-Hartman

[PATCH] Silence a const vs non-const warning

2006-04-11T13:18:42Z

lib/string.c: In function 'memcpy': lib/string.c:470: warning: initialization discards qualifiers from pointer = target type Signed-off-by: Jan-Benedict Glaw Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds

[PATCH] Clean up arch-overrides in linux/string.h

2006-04-11T13:18:40Z

Some string functions were safely overrideable in lib/string.c, but their corresponding declarations in linux/string.h were not. Correct this, and make strcspn overrideable. Odds of someone wanting to do optimized assembly of these are small, but for the sake of cleanliness, might as well bring them into line with the rest of the file. Signed-off-by: Kyle McMartin Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds

[PATCH] No arch-specific strpbrk implementations

2006-04-11T13:18:40Z

While cleaning up parisc_ksyms.c earlier, I noticed that strpbrk wasn't being exported from lib/string.c. Investigating further, I noticed a changeset that removed its export and added it to _ksyms.c on a few more architectures. The justification was that "other arches do it." I think this is wrong, since no architecture currently defines __HAVE_ARCH_STRPBRK, there's no reason for any of them to be exporting it themselves. Therefore, consolidate the export to lib/string.c. Signed-off-by: Kyle McMartin Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds

[PARISC] Remove obsolete CONFIG_DEBUG_IOREMAP

2006-03-30T17:48:50Z

Remove CONFIG_DEBUG_IOREMAP, it's now obsolete and won't work anyway. Remove it from lib/KConfig since it was only available on parisc. Signed-off-by: Helge Deller Signed-off-by: Kyle McMartin