08 Aug, 2010
1 commit
-
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/roland/infiniband: (42 commits)
IB/qib: Add missing include
IB/ehca: Drop unnecessary NULL test
RDMA/nes: Fix confusing if statement indentation
IB/ehca: Init irq tasklet before irq can happen
RDMA/nes: Fix misindented code
RDMA/nes: Fix showing wqm_quanta
RDMA/nes: Get rid of "set but not used" variables
RDMA/nes: Read firmware version from correct place
IB/srp: Export req_lim via sysfs
IB/srp: Make receive buffer handling more robust
IB/srp: Use print_hex_dump()
IB: Rename RAW_ETY to RAW_ETHERTYPE
RDMA/nes: Fix two sparse warnings
RDMA/cxgb3: Make needlessly global iwch_l2t_send() static
IB/iser: Make needlessly global iser_alloc_rx_descriptors() static
RDMA/cxgb4: Add timeouts when waiting for FW responses
IB/qib: Fix race between qib_error_qp() and receive packet processing
IB/qib: Limit the number of packets processed per interrupt
IB/qib: Allow writes to the diag_counters to be able to clear them
IB/qib: Set cfgctxts to number of CPUs by default
...
05 Aug, 2010
1 commit
-
Change abbreviated IB_QPT_RAW_ETY to IB_QPT_RAW_ETHERTYPE to make
the special QP type easier to understand.cf http://www.mail-archive.com/linux-rdma@vger.kernel.org/msg04530.html
Signed-off-by: Aleksey Senin
Signed-off-by: Roland Dreier
29 Jul, 2010
1 commit
-
NULL pointer dereferences in ib_cm_init_qp_attr() were seen by some
users. From a crash dump, I determined that we died in
cm_init_qp_rts_attr() (it's inlined, so it doesn't show up in the
traceback) on the line labeled below:static int cm_init_qp_rts_attr(struct cm_id_private *cm_id_priv,
struct ib_qp_attr *qp_attr,
int *qp_attr_mask)
{
........
if (cm_id_priv->id.lap_state == IB_CM_LAP_UNINIT) {
.....
} else {
*qp_attr_mask = IB_QP_ALT_PATH | IB_QP_PATH_MIG_STATE;
qp_attr->alt_port_num = cm_id_priv->alt_av.port->port_num;
Reported-by: Josh England
Signed-off-by: Sean Hefty
Signed-off-by: Roland Dreier
15 Jul, 2010
1 commit
-
Signed-off-by: Roland Dreier
11 Jun, 2010
1 commit
-
remove useless union keyword in rtable, rt6_info and dn_route.
Since there is only one member in a union, the union keyword isn't useful.
Signed-off-by: Changli Gao
Signed-off-by: Eric Dumazet
Signed-off-by: David S. Miller
26 May, 2010
2 commits
-
Use memdup_user when user data is immediately copied into the
allocated region.The semantic patch that makes this change is as follows:
(http://coccinelle.lip6.fr/)//
@@
expression from,to,size,flag;
position p;
identifier l1,l2;
@@- to = \(kmalloc@p\|kzalloc@p\)(size,flag);
+ to = memdup_user(from,size);
if (
- to==NULL
+ IS_ERR(to)
|| ...) {
}
- if (copy_from_user(to, from, size) != 0) {
-
- }
//Signed-off-by: Julia Lawall
24 May, 2010
1 commit
-
Signed-off-by: Roland Dreier
22 May, 2010
1 commit
-
Add a new parameter to ib_register_device() so that low-level device
drivers can pass in a pointer to a callback function that will be
called for each port that is registered in sysfs. This allows
low-level device drivers to create files in/sys/class/infiniband//ports//
without having to poke through the internals of the RDMA sysfs handling.
There is no need for an unregister function since the kobject
reference will go to zero when ib_unregister_device() is called.Signed-off-by: Ralph Campbell
Signed-off-by: Roland Dreier
16 May, 2010
2 commits
-
…ked-atomics', 'misc', 'mthca' and 'nes' into for-next
-
Use kmemdup when some other buffer is immediately copied into the
allocated region.A simplified version of the semantic patch that makes this change is as
follows: (http://coccinelle.lip6.fr/)//
@@
expression from,to,size,flag;
statement S;
@@- to = \(kmalloc\|kzalloc\)(size,flag);
+ to = kmemdup(from,size,flag);
if (to==NULL || ...) S
- memcpy(to, from, size);
//Signed-off-by: Julia Lawall
Signed-off-by: Roland Dreier
22 Apr, 2010
2 commits
-
Randomize local port allocation in the way sctp_get_port_local() does.
Update rover at the end of loop since we're likely to pick a valid port
on the first try.Signed-off-by: Tetsuo Handa
Reviewed-by: Sean Hefty
Signed-off-by: Roland Dreier -
Several RDMA user-access drivers have file_operations structures with
no .llseek method set. None of the drivers actually do anything with
f_pos, so this means llseek is essentially a NOP, instead of returning
an error as leaving other file_operations methods unimplemented would
do. This is mostly harmless, except that a NULL .llseek means that
default_llseek() is used, and this function grabs the BKL, which we
would like to avoid.Since llseek does nothing useful on these files, we would like it to
return an error to userspace instead of silently grabbing the BKL and
succeeding. For nearly all of the file types, we take the
belt-and-suspenders approach of setting the .llseek method to
no_llseek and also calling nonseekable_open(); the exception is the
uverbs_event files, which are created with anon_inode_getfile(), which
already sets f_mode the same way as nonseekable_open() would.This work is motivated by Arnd Bergmann's bkl-removal tree.
Signed-off-by: Roland Dreier
10 Apr, 2010
2 commits
-
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/roland/infiniband:
IB/mlx4: Check correct variable for allocation failure
RDMA/nes: Correct cap.max_inline_data assignment in nes_query_qp()
RDMA/cm: Set num_paths when manually assigning path records
IB/cm: Fix device_create() return value check
08 Apr, 2010
1 commit
-
When manually assigning the path records to use for a connection, save
the number of paths that were set. Otherwise, checks against num_path
will show 0, even though path record data is available.This was discovered by manually setting the path records from user
space, then querying the kernel to see if the correct path records
were assigned, only to discover that the kernel returned 0 path
records to the query.Signed-off-by: Sean Hefty
Signed-off-by: Roland Dreier
01 Apr, 2010
1 commit
-
Use IS_ERR() instead of comparing to NULL.
Signed-off-by: Jani Nikula
Signed-off-by: Roland Dreier
30 Mar, 2010
1 commit
-
…it slab.h inclusion from percpu.h
percpu.h is included by sched.h and module.h and thus ends up being
included when building most .c files. percpu.h includes slab.h which
in turn includes gfp.h making everything defined by the two files
universally available and complicating inclusion dependencies.percpu.h -> slab.h dependency is about to be removed. Prepare for
this change by updating users of gfp and slab facilities include those
headers directly instead of assuming availability. As this conversion
needs to touch large number of source files, the following script is
used as the basis of conversion.http://userweb.kernel.org/~tj/misc/slabh-sweep.py
The script does the followings.
* Scan files for gfp and slab usages and update includes such that
only the necessary includes are there. ie. if only gfp is used,
gfp.h, if slab is used, slab.h.* When the script inserts a new include, it looks at the include
blocks and try to put the new include such that its order conforms
to its surrounding. It's put in the include block which contains
core kernel includes, in the same order that the rest are ordered -
alphabetical, Christmas tree, rev-Xmas-tree or at the end if there
doesn't seem to be any matching order.* If the script can't find a place to put a new include (mostly
because the file doesn't have fitting include block), it prints out
an error message indicating which .h file needs to be added to the
file.The conversion was done in the following steps.
1. The initial automatic conversion of all .c files updated slightly
over 4000 files, deleting around 700 includes and adding ~480 gfp.h
and ~3000 slab.h inclusions. The script emitted errors for ~400
files.2. Each error was manually checked. Some didn't need the inclusion,
some needed manual addition while adding it to implementation .h or
embedding .c file was more appropriate for others. This step added
inclusions to around 150 files.3. The script was run again and the output was compared to the edits
from #2 to make sure no file was left behind.4. Several build tests were done and a couple of problems were fixed.
e.g. lib/decompress_*.c used malloc/free() wrappers around slab
APIs requiring slab.h to be added manually.5. The script was run on all .h files but without automatically
editing them as sprinkling gfp.h and slab.h inclusions around .h
files could easily lead to inclusion dependency hell. Most gfp.h
inclusion directives were ignored as stuff from gfp.h was usually
wildly available and often used in preprocessor macros. Each
slab.h inclusion directive was examined and added manually as
necessary.6. percpu.h was updated not to include slab.h.
7. Build test were done on the following configurations and failures
were fixed. CONFIG_GCOV_KERNEL was turned off for all tests (as my
distributed build env didn't work with gcov compiles) and a few
more options had to be turned off depending on archs to make things
build (like ipr on powerpc/64 which failed due to missing writeq).* x86 and x86_64 UP and SMP allmodconfig and a custom test config.
* powerpc and powerpc64 SMP allmodconfig
* sparc and sparc64 SMP allmodconfig
* ia64 SMP allmodconfig
* s390 SMP allmodconfig
* alpha SMP allmodconfig
* um on x86_64 SMP allmodconfig8. percpu.h modifications were reverted so that it could be applied as
a separate patch and serve as bisection point.Given the fact that I had only a couple of failures from tests on step
6, I'm fairly confident about the coverage of this conversion patch.
If there is a breakage, it's likely to be something in one of the arch
headers which should be easily discoverable easily on most builds of
the specific arch.Signed-off-by: Tejun Heo <tj@kernel.org>
Guess-its-ok-by: Christoph Lameter <cl@linux-foundation.org>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Lee Schermerhorn <Lee.Schermerhorn@hp.com>
19 Mar, 2010
1 commit
-
This fixes a sysfs lockdep warning in the infiniband code.
Cc: Yinghai Lu
Cc: Eric Biederman
Signed-off-by: Greg Kroah-Hartman
14 Mar, 2010
1 commit
-
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/roland/infiniband:
RDMA/nes: Fix CX4 link problem in back-to-back configuration
RDMA/nes: Clear stall bit before destroying NIC QP
RDMA/nes: Set assume_aligned_header bit
RDMA/cxgb3: Wait at least one schedule cycle during device removal
IB/mad: Ignore iWARP devices on device removal
IPoIB: Include return code in trace message for ib_post_send() failures
IPoIB: Fix TX queue lockup with mixed UD/CM traffic
12 Mar, 2010
1 commit
-
When an iWARP device is unloaded, the ib_mad module logs errors. It
should be ignoring iWARP devices on device removal just like it does
on device add.Signed-off-by: Steve Wise
Acked-by: Sean Hefty
Signed-off-by: Roland Dreier
08 Mar, 2010
3 commits
-
Constify struct sysfs_ops.
This is part of the ops structure constification
effort started by Arjan van de Ven et al.Benefits of this constification:
* prevents modification of data that is shared
(referenced) by many other structure instances
at runtime* detects/prevents accidental (but not intentional)
modification attempts on archs that enforce
read-only kernel data at runtime* potentially better optimized code as the compiler
can assume that the const data cannot be changed* the compiler/linker move const data into .rodata
and therefore exclude them from false sharingSigned-off-by: Emese Revfy
Acked-by: David Teigland
Acked-by: Matt Domsch
Acked-by: Maciej Sosnowski
Acked-by: Hans J. Koch
Acked-by: Pekka Enberg
Acked-by: Jens Axboe
Acked-by: Stephen Hemminger
Signed-off-by: Greg Kroah-Hartman -
Convert some drivers who export a single string as class attribute
to the new class_attr_string functions. This removes redundant
code all over.Signed-off-by: Andi Kleen
Signed-off-by: Greg Kroah-Hartman -
Passing the attribute to the low level IO functions allows all kinds
of cleanups, by sharing low level IO code without requiring
an own function for every piece of data.Also drivers can extend the attributes with own data fields
and use that in the low level function.This makes the class attributes the same as sysdev_class attributes
and plain attributes.This will allow further cleanups in drivers.
Full tree sweep converting all users.
Signed-off-by: Andi Kleen
Signed-off-by: Greg Kroah-Hartman
07 Mar, 2010
1 commit
-
Replace open-coded loop with for_each_set_bit().
Signed-off-by: Akinobu Mita
Acked-by: Roland Dreier
Cc: Sean Hefty
Cc: Hal Rosenstock
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds
05 Mar, 2010
1 commit
-
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs-2.6: (52 commits)
init: Open /dev/console from rootfs
mqueue: fix typo "failues" -> "failures"
mqueue: only set error codes if they are really necessary
mqueue: simplify do_open() error handling
mqueue: apply mathematics distributivity on mq_bytes calculation
mqueue: remove unneeded info->messages initialization
mqueue: fix mq_open() file descriptor leak on user-space processes
fix race in d_splice_alias()
set S_DEAD on unlink() and non-directory rename() victims
vfs: add NOFOLLOW flag to umount(2)
get rid of ->mnt_parent in tomoyo/realpath
hppfs can use existing proc_mnt, no need for do_kern_mount() in there
Mirror MS_KERNMOUNT in ->mnt_flags
get rid of useless vfsmount_lock use in put_mnt_ns()
Take vfsmount_lock to fs/internal.h
get rid of insanity with namespace roots in tomoyo
take check for new events in namespace (guts of mounts_poll()) to namespace.c
Don't mess with generic_permission() under ->d_lock in hpfs
sanitize const/signedness for udf
nilfs: sanitize const/signedness in dealing with ->d_name.name
...Fix up fairly trivial (famous last words...) conflicts in
drivers/infiniband/core/uverbs_main.c and security/tomoyo/realpath.c
04 Mar, 2010
1 commit
-
Signed-off-by: Al Viro
02 Mar, 2010
1 commit
-
Conflicts:
drivers/infiniband/core/uverbs_main.c
25 Feb, 2010
12 commits
-
The anon_inodes interface has been split to allow creating a bare
(non-installed) file pointer and also extended to allow specifying
O_RDONLY in the flags. This makes it a suitable replacement for the
private "infinibandeventfs" pseudo-filesystem used by uverbs, and this
replacement saves a small chunk of boilerplate code.Signed-off-by: Roland Dreier
-
ib_ud_header_init() first clears header and then fills up the various
fields. Later on, it tests header->immediate_present, which it has
already cleared, so the condition is always false. Fix this by adding
an immediate_present parameter and setting header->immediate_present
as is done with grh_present. Also remove unused calculation of
header_len.Signed-off-by: Eli Cohen
Signed-off-by: Roland Dreier -
As shown when 'let c_space_errors=1' is set in vim.
Signed-off-by: Alex Chiang
Signed-off-by: Roland Dreier -
Some large systems may support more than IB_UCM_MAX_DEVICES
(currently 32).This change allows us to support more devices in a backwards-compatible
manner. the first IB_UCM_MAX_DEVICES keep the same major/minor device
numbers they've always had.If there are more than IB_UCM_MAX_DEVICES, then we dynamically request
a new major device number (new minors start at 0).Signed-off-by: Alex Chiang
Signed-off-by: Roland Dreier -
This change is not useful by itself, but sets us up for a future
change that allows us to support more than IB_UCM_MAX_DEVICES.Signed-off-by: Alex Chiang
Signed-off-by: Roland Dreier -
This change is not useful by itself, but sets us up for a future
change that allows us to dynamically allocate device numbers in case
we have more than IB_UCM_MAX_DEVICES in the system.Signed-off-by: Alex Chiang
Signed-off-by: Roland Dreier -
Clean errors as shown when 'let c_space_errors=1' is set in vim.
Signed-off-by: Alex Chiang
Signed-off-by: Roland Dreier -
Some large systems may support more than IB_UMAD_MAX_PORTS
(currently 64).This change allows us to support more ports in a backwards-compatible
manner. The first IB_UMAD_MAX_PORTS keep the same major/minor device
numbers they've always had.If there are more than IB_UMAD_MAX_PORTS, we then dynamically request
a new major device number (new minors start at 0).Signed-off-by: Alex Chiang
Signed-off-by: Roland Dreier -
This change is not useful by itself, but sets us up for a future change
that allows us to support more than IB_UMAD_MAX_PORTS in a system.Signed-off-by: Alex Chiang
Signed-off-by: Roland Dreier -
This change is not useful by itself, but sets us up for a future
change that allows us to dynamically allocate device numbers in case
we have more than IB_UMAD_MAX_PORTS in the system.Signed-off-by: Alex Chiang
Signed-off-by: Roland Dreier -
We no longer need this data structure, as it was used to associate an
inode back to a struct ib_umad_port during ->open(). But now that
we're embedding a struct cdev in struct ib_umad_port, we can use the
container_of() macro to go from the inode back to the device instead.Signed-off-by: Alex Chiang
Signed-off-by: Roland Dreier -
Instead of storing pointers to cdev and sm_cdev, embed the full
structures instead.This change allows us to use the container_of() macro in ib_umad_open()
and ib_umad_sm_open() in a future patch.This change increases the size of struct ib_umad_port to 320 bytes
from 128.Signed-off-by: Alex Chiang
Signed-off-by: Roland Dreier
