04 Jan, 2010
1 commit
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Revamp the qdio performance statistics and move them from procfs to
debugfs using the seq_file interface. Since the statistics are not
intended for the general user the removal of /proc/qdio_perf should
not surprise anyone.The per device statistics are disabled by default, writing 1 to
//qdio//statistics enables the
statistics for the given device.Signed-off-by: Jan Glauber
Signed-off-by: Martin Schwidefsky
19 Dec, 2009
10 commits
-
Cc: Michael Holzheu
Signed-off-by: Heiko Carstens
Signed-off-by: Martin Schwidefsky -
Add a counter to the qdio performance statistics that indicates that no
free buffers were left in the input queue. If the counter gets increased
it means that the qdio adapter filled all available buffers and possibly
had more buffers ready but could not transmit them.Signed-off-by: Jan Glauber
Signed-off-by: Martin Schwidefsky -
* Don't write debug feature log entries for sl, slsb and sbal since these
elements can be located from the qdio_q pointer which is also logged.
* Convert WARN_ON for wrong alignment of sbal to BUG_ON.
* Remove WARN_ON's for wrong alignment of q / qib / slib since these
alignments should be guaranteed by kmem_cache_alloc alignment /
struct aligned attribute / __get_free_page.Signed-off-by: Jan Glauber
Signed-off-by: Martin Schwidefsky -
Channel path vary is currently broken: channel paths which are varied
offline are still used by Linux. The reason for this is that:* the path mask indicating which paths of an I/O device can be used
is reset by each internal I/O request
* the logic that checks if a path group is already in its designated
target state incorrectly interprets the result "is correctly set"
as "is correctly set and available"Fix this by resetting the path mask only for internal I/O requests
which affect the path mask and by correcting the pgid check logic.Signed-off-by: Peter Oberparleiter
Signed-off-by: Martin Schwidefsky -
Memset should be given the size of the structure, not the size of the pointer.
The semantic patch that makes this change is as follows:
(http://coccinelle.lip6.fr/)//
@@
type T;
T *x;
expression E;
@@memset(x, E, sizeof(
+ *
x))
//Signed-off-by: Julia Lawall
Signed-off-by: Heiko Carstens
Signed-off-by: Martin Schwidefsky -
Without defining the pr_fmt() macro, the "tape: " prefix will not be
printed when using the pr_xxx printk macros. This patch adds the
missing definitions.Signed-off-by: Michael Holzheu
Signed-off-by: Martin Schwidefsky -
Return the PTR_ERR of the correct pointer.
Signed-off-by: Roel Kluin
Signed-off-by: Martin Schwidefsky -
Return the PTR_ERR of the correct pointer.
Signed-off-by: Roel Kluin
Signed-off-by: Martin Schwidefsky -
The DIAG discipline does not have a own driver name. It shows up as
dasd-eckd or dasd-fba. So messages for dasd-diag are moved to the
generic dasd part.Signed-off-by: Stefan Haberland
Signed-off-by: Martin Schwidefsky -
Using dev_set_drvdata prior to device_register will force the driver core
to kmalloc its private data. Since we use this for the console subchannel
lets set the drvdata before taking the subchannels spinlock.Signed-off-by: Sebastian Ott
Signed-off-by: Martin Schwidefsky
16 Dec, 2009
2 commits
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Makes use of skip_spaces() defined in lib/string.c for removing leading
spaces from strings all over the tree.It decreases lib.a code size by 47 bytes and reuses the function tree-wide:
text data bss dec hex filename
64688 584 592 65864 10148 (TOTALS-BEFORE)
64641 584 592 65817 10119 (TOTALS-AFTER)Also, while at it, if we see (*str && isspace(*str)), we can be sure to
remove the first condition (*str) as the second one (isspace(*str)) also
evaluates to 0 whenever *str == 0, making it redundant. In other words,
"a char equals zero is never a space".Julia Lawall tried the semantic patch (http://coccinelle.lip6.fr) below,
and found occurrences of this pattern on 3 more files:
drivers/leds/led-class.c
drivers/leds/ledtrig-timer.c
drivers/video/output.c@@
expression str;
@@( // ignore skip_spaces cases
while (*str && isspace(*str)) { \(str++;\|++str;\) }
|
- *str &&
isspace(*str)
)Signed-off-by: André Goddard Rosa
Cc: Julia Lawall
Cc: Martin Schwidefsky
Cc: Jeff Dike
Cc: Ingo Molnar
Cc: Thomas Gleixner
Cc: "H. Peter Anvin"
Cc: Richard Purdie
Cc: Neil Brown
Cc: Kyle McMartin
Cc: Henrique de Moraes Holschuh
Cc: David Howells
Cc:
Cc: Samuel Ortiz
Cc: Patrick McHardy
Cc: Takashi Iwai
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Signed-off-by: Alexey Dobriyan
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds
15 Dec, 2009
1 commit
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* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/percpu: (34 commits)
m68k: rename global variable vmalloc_end to m68k_vmalloc_end
percpu: add missing per_cpu_ptr_to_phys() definition for UP
percpu: Fix kdump failure if booted with percpu_alloc=page
percpu: make misc percpu symbols unique
percpu: make percpu symbols in ia64 unique
percpu: make percpu symbols in powerpc unique
percpu: make percpu symbols in x86 unique
percpu: make percpu symbols in xen unique
percpu: make percpu symbols in cpufreq unique
percpu: make percpu symbols in oprofile unique
percpu: make percpu symbols in tracer unique
percpu: make percpu symbols under kernel/ and mm/ unique
percpu: remove some sparse warnings
percpu: make alloc_percpu() handle array types
vmalloc: fix use of non-existent percpu variable in put_cpu_var()
this_cpu: Use this_cpu_xx in trace_functions_graph.c
this_cpu: Use this_cpu_xx for ftrace
this_cpu: Use this_cpu_xx in nmi handling
this_cpu: Use this_cpu operations in RCU
this_cpu: Use this_cpu ops for VM statistics
...Fix up trivial (famous last words) global per-cpu naming conflicts in
arch/x86/kvm/svm.c
mm/slab.c
10 Dec, 2009
3 commits
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* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial: (42 commits)
tree-wide: fix misspelling of "definition" in comments
reiserfs: fix misspelling of "journaled"
doc: Fix a typo in slub.txt.
inotify: remove superfluous return code check
hdlc: spelling fix in find_pvc() comment
doc: fix regulator docs cut-and-pasteism
mtd: Fix comment in Kconfig
doc: Fix IRQ chip docs
tree-wide: fix assorted typos all over the place
drivers/ata/libata-sff.c: comment spelling fixes
fix typos/grammos in Documentation/edac.txt
sysctl: add missing comments
fs/debugfs/inode.c: fix comment typos
sgivwfb: Make use of ARRAY_SIZE.
sky2: fix sky2_link_down copy/paste comment error
tree-wide: fix typos "couter" -> "counter"
tree-wide: fix typos "offest" -> "offset"
fix kerneldoc for set_irq_msi()
spidev: fix double "of of" in comment
comment typo fix: sybsystem -> subsystem
... -
* git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi-misc-2.6: (222 commits)
[SCSI] zfcp: Remove flag ZFCP_STATUS_FSFREQ_TMFUNCNOTSUPP
[SCSI] zfcp: Activate fc4s attributes for zfcp in FC transport class
[SCSI] zfcp: Block scsi_eh thread for rport state BLOCKED
[SCSI] zfcp: Update FSF error reporting
[SCSI] zfcp: Improve ELS ADISC handling
[SCSI] zfcp: Simplify handling of ct and els requests
[SCSI] zfcp: Remove ZFCP_DID_MASK
[SCSI] zfcp: Move WKA port to zfcp FC code
[SCSI] zfcp: Use common code definitions for FC CT structs
[SCSI] zfcp: Use common code definitions for FC ELS structs
[SCSI] zfcp: Update FCP protocol related code
[SCSI] zfcp: Dont fail SCSI commands when transitioning to blocked fc_rport
[SCSI] zfcp: Assign scheduled work to driver queue
[SCSI] zfcp: Remove STATUS_COMMON_REMOVE flag as it is not required anymore
[SCSI] zfcp: Implement module unloading
[SCSI] zfcp: Merge trace code for fsf requests in one function
[SCSI] zfcp: Access ports and units with container_of in sysfs code
[SCSI] zfcp: Remove suspend callback
[SCSI] zfcp: Remove global config_mutex
[SCSI] zfcp: Replace local reference counting with common kref
... -
* 'for-linus' of git://git390.marist.edu/pub/scm/linux-2.6: (72 commits)
[S390] 3215/3270 console: remove wrong comment
[S390] dasd: remove BKL from extended error reporting code
[S390] vmlogrdr: remove BKL
[S390] vmur: remove BKL
[S390] zcrypt: remove BKL
[S390] 3270: remove BKL
[S390] vmwatchdog: remove lock_kernel() from open() function
[S390] monwriter: remove lock_kernel() from open() function
[S390] monreader: remove lock_kernel() from open() function
[S390] s390: remove unused nfsd #includes
[S390] ftrace: build ftrace.o when CONFIG_FTRACE_SYSCALLS is set for s390
[S390] etr/stp: put correct per cpu variable
[S390] tty3270: move keyboard compat ioctls
[S390] sclp: improve servicability setting
[S390] s390: use change recording override for kernel mapping
[S390] MAINTAINERS: Add s390 drivers block
[S390] use generic sockios.h header file
[S390] use generic termbits.h header file
[S390] smp: remove unused typedef and defines
[S390] cmm: free pages on hibernate.
...
09 Dec, 2009
1 commit
-
* 'timers-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
timers, init: Limit the number of per cpu calibration bootup messages
posix-cpu-timers: optimize and document timer_create callback
clockevents: Add missing include to pacify sparse
x86: vmiclock: Fix printk format
x86: Fix printk format due to variable type change
sparc: fix printk for change of variable type
clocksource/events: Fix fallout of generic code changes
nohz: Allow 32-bit machines to sleep for more than 2.15 seconds
nohz: Track last do_timer() cpu
nohz: Prevent clocksource wrapping during idle
nohz: Type cast printk argument
mips: Use generic mult/shift factor calculation for clocks
clocksource: Provide a generic mult/shift factor calculation
clockevents: Use u32 for mult and shift factors
nohz: Introduce arch_needs_cpu
nohz: Reuse ktime in sub-functions of tick_check_idle.
time: Remove xtime_cache
time: Implement logarithmic time accumulation
08 Dec, 2009
3 commits
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* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next-2.6: (1815 commits)
mac80211: fix reorder buffer release
iwmc3200wifi: Enable wimax core through module parameter
iwmc3200wifi: Add wifi-wimax coexistence mode as a module parameter
iwmc3200wifi: Coex table command does not expect a response
iwmc3200wifi: Update wiwi priority table
iwlwifi: driver version track kernel version
iwlwifi: indicate uCode type when fail dump error/event log
iwl3945: remove duplicated event logging code
b43: fix two warnings
ipw2100: fix rebooting hang with driver loaded
cfg80211: indent regulatory messages with spaces
iwmc3200wifi: fix NULL pointer dereference in pmkid update
mac80211: Fix TX status reporting for injected data frames
ath9k: enable 2GHz band only if the device supports it
airo: Fix integer overflow warning
rt2x00: Fix padding bug on L2PAD devices.
WE: Fix set events not propagated
b43legacy: avoid PPC fault during resume
b43: avoid PPC fault during resume
tcp: fix a timewait refcnt race
...Fix up conflicts due to sysctl cleanups (dead sysctl_check code and
CTL_UNNUMBERED removed) in
kernel/sysctl_check.c
net/ipv4/sysctl_net_ipv4.c
net/ipv6/addrconf.c
net/sctp/sysctl.c -
* git://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/sysctl-2.6: (43 commits)
security/tomoyo: Remove now unnecessary handling of security_sysctl.
security/tomoyo: Add a special case to handle accesses through the internal proc mount.
sysctl: Drop & in front of every proc_handler.
sysctl: Remove CTL_NONE and CTL_UNNUMBERED
sysctl: kill dead ctl_handler definitions.
sysctl: Remove the last of the generic binary sysctl support
sysctl net: Remove unused binary sysctl code
sysctl security/tomoyo: Don't look at ctl_name
sysctl arm: Remove binary sysctl support
sysctl x86: Remove dead binary sysctl support
sysctl sh: Remove dead binary sysctl support
sysctl powerpc: Remove dead binary sysctl support
sysctl ia64: Remove dead binary sysctl support
sysctl s390: Remove dead sysctl binary support
sysctl frv: Remove dead binary sysctl support
sysctl mips/lasat: Remove dead binary sysctl support
sysctl drivers: Remove dead binary sysctl support
sysctl crypto: Remove dead binary sysctl support
sysctl security/keys: Remove dead binary sysctl support
sysctl kernel: Remove binary sysctl logic
... -
Conflicts:
kernel/irq/chip.c
07 Dec, 2009
19 commits
-
When converting these two drivers from bootmem to slab allocations I
forgot to remove two comments which state that this wouldn't be
possible.
So remove them now since this caused confusion already.Signed-off-by: Heiko Carstens
Signed-off-by: Martin Schwidefsky -
Signed-off-by: Martin Schwidefsky
-
Signed-off-by: Martin Schwidefsky
-
Signed-off-by: Martin Schwidefsky
-
Signed-off-by: Martin Schwidefsky
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Replace BLK use in fs3270 with mutex.
Signed-off-by: Martin Schwidefsky
-
The lock_kernel() calls in the open() function are unnecessary because
misc_register() is called last in module_init() and concurrent open()
calls are handled by other means.Signed-off-by: Gerald Schaefer
Signed-off-by: Martin Schwidefsky -
The lock_kernel() calls in the open() function are unnecessary because
misc_register() is called last in module_init() and concurrent open()
calls are handled by other means.Signed-off-by: Gerald Schaefer
Signed-off-by: Martin Schwidefsky -
The lock_kernel() calls in the open() function are unnecessary because
misc_register() is called last in module_init() and concurrent open()
calls are handled by other means.Signed-off-by: Gerald Schaefer
Signed-off-by: Martin Schwidefsky -
All keyboard ioctls are compatible, so we can simply
move the compat handling into the vt and tty3270 drivers.Signed-off-by: Arnd Bergmann
Signed-off-by: Martin Schwidefsky -
Set dump indicator on read-scp-info command to get meaningful dumps.
Signed-off-by: Martin Schwidefsky
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Replace BLK with a per device mutex.
Signed-off-by: Martin Schwidefsky
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Rename tape_get_device to tape_find_device and tape_get_device_reference
to tape_get_device. The old names didn't make too much sense.Follow the get_device()/put_device() semantic and convert tape_put_device
to a void function.Signed-off-by: Martin Schwidefsky
-
Fix a bug introduced with git commit dff59b64af94dc58:
- if (cdev->dev.driver_data != NULL) {
+ if (!dev_get_drvdata(&cdev->dev)) {
These two are not equivalent.Signed-off-by: Martin Schwidefsky
-
The change to f_pos in the read / write method has no effect as the
value is controlled by the VFS layer, e.g. for vfs_read:loff_t pos = file_pos_read(file);
ret = vfs_read(file, buf, count, &pos);
file_pos_write(file, pos);Signed-off-by: Martin Schwidefsky
-
Protect the hrtimer ap_poll_timer from being scheduled at the same
time from several processes.Signed-off-by: Felix Beck
Signed-off-by: Martin Schwidefsky -
Cex3 needs a lower speed rating. Otherwise cex2 adapters will be
prefered.Signed-off-by: Felix Beck
Signed-off-by: Martin Schwidefsky -
Cards with lower speed rating are prefered. Thus change adjust the
speed rating of cex2c adapters to be prefered before pcixcc, although
they should not appear in the same machine anyway.Signed-off-by: Felix Beck
Signed-off-by: Martin Schwidefsky -
New definitions are added for CEX3 device types. They will be set
in the according probe functions. CEX3 device types will be handled
in the same modules as CEX2 device types. In the first step they are
the same as CEX2 types, but they can be adjusted for further
characteristics of CEX3 easily.Signed-off-by: Felix Beck
Signed-off-by: Ralph Wuerthner
Signed-off-by: Martin Schwidefsky
