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2008-01-24Kobject: convert remaining kobject_unregister() to kobject_put()Greg Kroah-Hartman1-2/+2
There is no need for kobject_unregister() anymore, thanks to Kay's kobject cleanup changes, so replace all instances of it with kobject_put(). Cc: Kay Sievers <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]>
2008-01-24Kobject: auto-cleanup on final unrefKay Sievers2-74/+107
We save the current state in the object itself, so we can do proper cleanup when the last reference is dropped. If the initial reference is dropped, the object will be removed from sysfs if needed, if an "add" event was sent, "remove" will be send, and the allocated resources are released. This allows us to clean up some driver core usage as well as allowing us to do other such changes to the rest of the kernel. Signed-off-by: Kay Sievers <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]>
2008-01-24Kset: remove kset_add functionGreg Kroah-Hartman1-12/+1
No one is calling this anymore, so just remove it and hard-code the one internal-use of it. Cc: Kay Sievers <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]>
2008-01-24Kobject: remove kobject_register()Greg Kroah-Hartman1-18/+0
The function is no longer used by anyone in the kernel, and it prevents the proper sending of the kobject uevent after the needed files are set up by the caller. kobject_init_and_add() can be used in its place. Cc: Kay Sievers <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]>
2008-01-24Kobject: rename kobject_init_ng() to kobject_init()Greg Kroah-Hartman1-7/+7
Now that the old kobject_init() function is gone, rename kobject_init_ng() to kobject_init() to clean up the namespace. Cc: Kay Sievers <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]>
2008-01-24Kobject: remove kobject_init() as no one uses it anymoreGreg Kroah-Hartman1-8/+3
The old kobject_init() function is on longer in use, so let us remove it from the public scope (kset mess in the kobject.c file still uses it, but that can be cleaned up later very simply.) Cc: Kay Sievers <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]>
2008-01-24Kobject: rename kobject_add_ng() to kobject_add()Greg Kroah-Hartman1-7/+7
Now that the old kobject_add() function is gone, rename kobject_add_ng() to kobject_add() to clean up the namespace. Cc: Kay Sievers <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]>
2008-01-24Kobject: remove kobject_add() as no one uses it anymoreGreg Kroah-Hartman1-14/+8
The old kobject_add() function is on longer in use, so let us remove it from the public scope (kset mess in the kobject.c file still uses it, but that can be cleaned up later very simply.) Cc: Kay Sievers <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]>
2008-01-24Kobject: drop child->parent ref at unregistrationAlan Stern1-3/+4
This patch (as1015) reverts changes that were made to the driver core about four years ago. The intent back then was to avoid certain kinds of invalid memory accesses by leaving kernel objects allocated as long as any of their children were still allocated. The original and correct approach was to wait only as long as any children were still _registered_; that's what this patch reinstates. This fixes a problem in the SCSI core made visible by the class_device to regular device conversion: A reference loop (scsi_device holds reference to request_queue, which is the child of a gendisk, which is the child of the scsi_device) prevents the data structures from being released, even though they are deregistered okay. It's possible that this change will cause a few bugs to surface, things that have been hidden for several years. They can be fixed easily enough by having the child device take an explicit reference to the parent whenever needed. Signed-off-by: Alan Stern <[email protected]> Cc: Kay Sievers <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]>
2008-01-24kobject: clean up debugging messagesGreg Kroah-Hartman2-14/+29
The kobject debugging messages are a mess. This provides a unified message that makes them actually useful. The format for new kobject debug messages should be: kobject: 'KOBJECT_NAME' (ADDRESS): FUNCTION_NAME: message.\n Cc: Kay Sievers <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]>
2008-01-24kobject: grab the kset reference in kobject_add, not kobject_initGreg Kroah-Hartman1-3/+3
kobject_init should not be grabing any references, but only initializing the object. This patch fixes this, and makes the lock hold-time shorter for when a kset is present in the kobject. The current kernel tree has been audited to verify that this change should be safe. Cc: Kay Sievers <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]>
2008-01-24kobject: remove subsystem_(un)register functionsGreg Kroah-Hartman1-13/+0
These functions are no longer used and are the last remants of the old subsystem crap. So delete them for good. Cc: Kay Sievers <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]>
2008-01-24Driver Core: kill subsys_attribute and default sysfs opsKay Sievers1-21/+0
Remove the no longer needed subsys_attributes, they are all converted to the more sensical kobj_attributes. There is no longer a magic fallback in sysfs attribute operations, all kobjects which create simple attributes need explicitely a ktype assigned, which tells the core what was intended here. Signed-off-by: Kay Sievers <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]>
2008-01-24Driver Core: switch all dynamic ksets to kobj_sysfs_opsKay Sievers1-4/+6
Switch all dynamically created ksets, that export simple attributes, to kobj_attribute from subsys_attribute. Struct subsys_attribute will be removed. Signed-off-by: Kay Sievers <[email protected]> Cc: Mike Halcrow <[email protected]> Cc: Phillip Hellewell <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]>
2008-01-24Driver Core: add kobj_attribute handlingKay Sievers1-0/+29
Add kobj_sysfs_ops to replace subsys_sysfs_ops. There is no need for special kset operations, we want to be able to use simple attribute operations at any kobject, not only ksets. The whole concept of any default sysfs attribute operations will go away with the upcoming removal of subsys_sysfs_ops. Signed-off-by: Kay Sievers <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]>
2008-01-24kobject: get rid of kobject_kset_add_dirGreg Kroah-Hartman1-32/+5
kobject_kset_add_dir is only called in one place so remove it and use kobject_create() instead. Cc: Kay Sievers <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]>
2008-01-24kobject: get rid of kobject_add_dirGreg Kroah-Hartman1-12/+0
kobject_create_and_add is the same as kobject_add_dir, so drop kobject_add_dir. Cc: Kay Sievers <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]>
2008-01-24kobject: add kobject_create_and_add functionGreg Kroah-Hartman1-18/+63
This lets users create dynamic kobjects much easier. Cc: Kay Sievers <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]>
2008-01-24kset: add kset_create_and_add functionGreg Kroah-Hartman1-1/+91
Now ksets can be dynamically created on the fly, no static definitions are required. Thanks to Miklos for hints on how to make this work better for the callers. And thanks to Kay for finding some stupid bugs in my original version and pointing out that we need to handle the fact that kobject's can have a kset as a parent and to handle that properly in kobject_add(). Cc: Kay Sievers <[email protected]> Cc: Miklos Szeredi <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]>
2008-01-24kobject: add kobject_init_and_add functionGreg Kroah-Hartman1-0/+27
Also add a kobject_init_and_add function which bundles up what a lot of the current callers want to do all at once, and it properly handles the memory usages, unlike kobject_register(); Cc: Kay Sievers <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]>
2008-01-24kobject: add kobject_add_ng functionGreg Kroah-Hartman1-0/+66
This is what the kobject_add function is going to become. Add this to the kernel and then we can convert the tree over to use it. Cc: Kay Sievers <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]>
2008-01-24kobject: add kobject_init_ng functionGreg Kroah-Hartman1-0/+42
This is what the kobject_init function is going to become. Add this to the kernel and then we can convert the tree over to use it. Cc: Kay Sievers <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]>
2008-01-24kobject: make kobject_cleanup be staticGreg Kroah-Hartman1-5/+4
No one except the kobject core calls it so make the function static. Signed-off-by: Greg Kroah-Hartman <[email protected]>
2008-01-24kobject: fix up kobject_set_name to use kvasprintfGreg Kroah-Hartman1-39/+32
Kay pointed out that kobject_set_name was being very stupid, doing two allocations for every call, when it should just be using the kernel function kvasprintf() instead. This change adds the internal kobject_set_name_vargs() function, which other follow-on patches will be using. Cc: Kay Sievers <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]>
2008-01-24kref: add kref_set()Evgeniy Polyakov1-2/+13
This adds kref_set() to the kref api for future use by people who really know what they are doing with krefs... From: Evgeniy Polyakov <[email protected]> Cc: Kay Sievers <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]>
2008-01-24kobject: remove incorrect comment in kobject_renameGreg Kroah-Hartman1-2/+0
As pointed out by Kay. Cc: Kay Sievers <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]>
2007-12-23lib: proportion: fix underflow in prop_norm_percpu()Peter Zijlstra1-21/+16
Zhe Jiang noticed that its possible to underflow pl->events in prop_norm_percpu() when the value returned by percpu_counter_read() is less than the error on that read and the period delay > 1. In that case half might not trigger the batch increment and the value will be identical on the next iteration, causing the same half to be subtracted again and again. Fix this by rewriting the division as a single subtraction instead of a subtraction loop and using percpu_counter_sum() when the value returned by percpu_counter_read() is smaller than the error. The latter is still needed if we want pl->events to shrink properly in the error region. [[email protected]: cleanups] Signed-off-by: Peter Zijlstra <[email protected]> Reviewed-by: Jiang Zhe <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2007-12-18sched: mark rwsem functions as __sched for wchan/profilingLivio Soares1-1/+1
This following commit http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commitdiff;h=fdf8cb0909b531f9ae8f9b9d7e4eb35ba3505f07 un-inlined a low-level rwsem function, but did not mark it as __sched. The result is that it now shows up as thread wchan (which also affects /proc/profile stats). The following simple patch fixes this by properly marking rwsem_down_failed_common() as a __sched function. Also in this patch, which is up for discussion, marks down_read() and down_write() proper as __sched. For profiling, it is pretty much useless to know that a semaphore is beig help - it is necessary to know _which_ one. By going up another frame on the stack, the information becomes much more useful. In summary, the below change to lib/rwsem.c should be applied; the changes to kernel/rwsem.c could be applied if other kernel hackers agree with my proposal that down_read()/down_write() in the profile is not enough. [ [email protected]: build fix ] Signed-off-by: Livio Soares <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Ingo Molnar <[email protected]>
2007-12-17kobject: fix the documentation of how kobject_set_name worksGreg Kroah-Hartman1-6/+6
Thanks to Dave Young <[email protected]> for pointing out that I forgot to update the comment when I rewrote kobject_set_name. Cc: Dave Young <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]>
2007-12-03Merge git://git.kernel.org/pub/scm/linux/kernel/git/herbert/net-2.6Linus Torvalds1-2/+6
* git://git.kernel.org/pub/scm/linux/kernel/git/herbert/net-2.6: (27 commits) [INET]: Fix inet_diag dead-lock regression [NETNS]: Fix /proc/net breakage [TEXTSEARCH]: Do not allow zero length patterns in the textsearch infrastructure [NETFILTER]: fix forgotten module release in xt_CONNMARK and xt_CONNSECMARK [NETFILTER]: xt_TCPMSS: remove network triggerable WARN_ON [DECNET]: dn_nl_deladdr() almost always returns no error [IPV6]: Restore IPv6 when MTU is big enough [RXRPC]: Add missing select on CRYPTO mac80211: rate limit wep decrypt failed messages rfkill: fix double-mutex-locking mac80211: drop unencrypted frames if encryption is expected mac80211: Fix behavior of ieee80211_open and ieee80211_close ieee80211: fix unaligned access in ieee80211_copy_snap mac80211: free ifsta->extra_ie and clear IEEE80211_STA_PRIVACY_INVOKED SCTP: Fix build issues with SCTP AUTH. SCTP: Fix chunk acceptance when no authenticated chunks were listed. SCTP: Fix the supported extensions paramter SCTP: Fix SCTP-AUTH to correctly add HMACS paramter. SCTP: Fix the number of HB transmissions. [TCP] illinois: Incorrect beta usage ...
2007-12-01[TEXTSEARCH]: Do not allow zero length patterns in the textsearch infrastructurePablo Neira Ayuso1-2/+6
If a zero length pattern is passed then return EINVAL. Avoids infinite loops (bm) or invalid memory accesses (kmp). Signed-off-by: Pablo Neira Ayuso <[email protected]> Signed-off-by: Patrick McHardy <[email protected]> Signed-off-by: Herbert Xu <[email protected]>
2007-11-29hexdump: don't print bytes with bit 7 setRandy Dunlap1-1/+2
As Herbert Xu pointed out, bytes (chars) with bit 7 (0x80) set are true with isprint() but they may not be isascii() but be Unicode instead, so don't try to print them in hex dumps. Signed-off-by: Randy Dunlap <[email protected]> Cc: Herbert Xu <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2007-11-28kobject: two typo fixesJohannes Berg1-2/+2
This fixes two typos from commit 34358c26a2c96b2a068dc44e0ac602106a466bce. Signed-off-by: Johannes Berg <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]>
2007-11-23Blackfin arch: punt CONFIG_BFIN -- we already have CONFIG_BLACKFINMike Frysinger1-2/+2
Signed-off-by: Mike Frysinger <[email protected]> Signed-off-by: Bryan Wu <[email protected]>
2007-11-14lib: move bitmap.o from lib-y to obj-y.Paul Mundt1-2/+2
mac80211 has a reference to __bitmap_empty() via bitmap_empty(). In lib/bitmap.c this is flagged with an EXPORT_SYMBOL(), but this is ultimately ineffective due to bitmap.o being linked in lib-y, resulting in: ERROR: "__bitmap_empty" [net/mac80211/mac80211.ko] undefined! Moving bitmap.o to obj-y fixes this up. Signed-off-by: Paul Mundt <[email protected]> Cc: "John W. Linville" <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2007-11-08[LIB] crc32c: Keep intermediate crc state in cpu orderBenny Halevy1-5/+2
crypto/crc32.c:chksum_final() is computing the digest as *(__le32 *)out = ~cpu_to_le32(mctx->crc); so the low-level crc32c_le routines should just keep the crc in cpu order, otherwise it is getting swabbed one too many times on big-endian machines. Signed-off-by: Benny Halevy <[email protected]> Signed-off-by: Herbert Xu <[email protected]>
2007-11-05Fix bitmap_scnlistprintf for empty masksAndi Kleen1-0/+4
When a bitmap is empty bitmap_scnlistprintf() would leave the buffer uninitialized. Set it to an empty string in this case. I didn't see any in normal kernel callers hitting this, but some custom debug code of mine did. Signed-off-by: Andi Kleen <[email protected]> Acked-by: Paul Jackson <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2007-10-30kobject: check for duplicate names in kobject_renameGreg Kroah-Hartman1-0/+13
This should catch any duplicate names before we try to tell sysfs to rename the object. This happens a lot with older versions of udev and the network rename scripts. Cc: David Miller <[email protected]> Cc: Kay Sievers <[email protected]> Cc: Rafael J. Wysocki <[email protected]> Cc: Tejun Heo <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]>
2007-10-25Permit silencing of __deprecated warnings.Jeff Garzik1-0/+8
The __deprecated marker is quite useful in highlighting the remnants of old APIs that want removing. However, it is quite normal for one or more years to pass, before the (usually ancient, bitrotten) code in question is either updated or deleted. Thus, like __must_check, add a Kconfig option that permits the silencing of this compiler warning. This change mimics the ifdef-ery and Kconfig defaults of MUST_CHECK as closely as possible. Signed-off-by: Jeff Garzik <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2007-10-23Merge git://git.infradead.org/mtd-2.6Linus Torvalds2-3/+4
* git://git.infradead.org/mtd-2.6: [MTD] [NOR] Fix deadlock in Intel chip driver caused by get_chip recursion [JFFS2] Fix return value from jffs2_write_end() [MTD] [OneNAND] Fix wrong free the static address in onenand_sim [MTD] [NAND] Replace -1 with -EBADMSG in nand error correction code [RSLIB] BUG() when passing illegal parameters to decode_rs8() or decode_rs16() [MTD] [NAND] treat any negative return value from correct() as an error [MTD] [NAND] nandsim: bugfix in initialization [MTD] Fix typo in Alauda config option help text. [MTD] [NAND] add s3c2440-specific read_buf/write_buf [MTD] [OneNAND] onenand-sim: fix kernel-doc and typos [JFFS2] Tidy up fix for ACL/permissions problem.
2007-10-22Add CONFIG_DEBUG_SG sg validationJens Axboe1-0/+10
Add a Kconfig entry which will toggle some sanity checks on the sg entry and tables. Signed-off-by: Jens Axboe <[email protected]>
2007-10-22Update swiotlb to use sg helpersJens Axboe1-1/+1
Signed-off-by: Jens Axboe <[email protected]>
2007-10-20[MTD] [NAND] Replace -1 with -EBADMSG in nand error correction codeJörn Engel2-1/+3
Magic numerical values are just bad style. Particularly so when undocumented. Signed-off-by: Jörn Engel <[email protected]> Signed-off-by: David Woodhouse <[email protected]>
2007-10-20[RSLIB] BUG() when passing illegal parameters to decode_rs8() or decode_rs16()Jörn Engel1-2/+1
Returning -ERANGE should never happen. Signed-off-by: Jörn Engel <[email protected]> Signed-off-by: David Woodhouse <[email protected]>
2007-10-20spelling fixes: lib/Simon Arlott1-1/+1
Spelling fix in lib/. Signed-off-by: Simon Arlott <[email protected]> Signed-off-by: Adrian Bunk <[email protected]>
2007-10-20LIB: Replace inappropriate include of <linux/bug.h>Robert P. J. Day1-1/+2
Replace an irrelevant include of bug.h with the more appropriate includes of slab.h and module.h. it's not as if the original inclusion is an error, it's simply not related to the contents of that source file, while the other two are. compile-tested on i386. Signed-off-by: Robert P. J. Day <[email protected]> Signed-off-by: Adrian Bunk <[email protected]>
2007-10-19Fix misspellings of "system", "controller", "interrupt" and "necessary".Robert P. J. Day1-1/+1
Fix the various misspellings of "system", controller", "interrupt" and "[un]necessary". Signed-off-by: Robert P. J. Day <[email protected]> Signed-off-by: Adrian Bunk <[email protected]>
2007-10-19markers: Add samples subdirMathieu Desnoyers1-0/+2
Begin infrastructure for kernel code samples in the samples/ directory. Add its Kconfig and Kbuild files. Source its Kconfig file in all arch/ Kconfigs. Signed-off-by: Randy Dunlap <[email protected]> Signed-off-by: Mathieu Desnoyers <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2007-10-19Add irq protection in the percpu-counters cpu-hotplug-callback pathGautham R Shenoy1-2/+3
Some of the per-cpu counters and thus their locks are accessed from IRQ contexts. This can cause a deadlock if it interrupts a cpu-offline thread which is transferring a dead-cpu's counts to the global counter. Add appropriate IRQ protection in the cpu-hotplug callback path. Signed-off-by: Gautham R Shenoy <[email protected]> Cc: KAMEZAWA Hiroyuki <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2007-10-19Use helpers to obtain task pid in printksPavel Emelyanov1-4/+4
The task_struct->pid member is going to be deprecated, so start using the helpers (task_pid_nr/task_pid_vnr/task_pid_nr_ns) in the kernel. The first thing to start with is the pid, printed to dmesg - in this case we may safely use task_pid_nr(). Besides, printks produce more (much more) than a half of all the explicit pid usage. [[email protected]: git-drm went and changed lots of stuff] Signed-off-by: Pavel Emelyanov <[email protected]> Cc: Dave Airlie <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
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