This is the first patch of a set of patches that enables DLC.
This patch adds some cleanup in the config.c as well as some
preparatory changes in peer.c to enable dynamic network
configuration
Signed-off-by: Amir Shehata <amir.shehata@intel.com>
Intel-bug-id: https://jira.hpdd.intel.com/browse/LU-2456
Change-Id: I8c8bbf3b55acf4d76f22a8be587b553a70d31889
Reviewed-on: http://review.whamcloud.com/9830
Reviewed-by: Liang Zhen <liang.zhen@intel.com>
Reviewed-by: James Simmons <uja.ornl@gmail.com>
Reviewed-by: Oleg Drokin <oleg.drokin@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
LIBCFS_ALLOC already zero out the memory allocated, so there is no
need to zero out the memory again.
Signed-off-by: Frank Zago <fzago@cray.com>
Intel-bug-id: https://jira.hpdd.intel.com/browse/LU-5304
Reviewed-on: http://review.whamcloud.com/11012
Reviewed-by: Patrick Farrell <paf@cray.com>
Reviewed-by: James Simmons <uja.ornl@gmail.com>
Reviewed-by: Andreas Dilger <andreas.dilger@intel.com>
Reviewed-by: Dmitry Eremin <dmitry.eremin@intel.com>
Reviewed-by: Oleg Drokin <oleg.drokin@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
returned value of lnet_post_send_locked and
lnet_post_routed_recv_locked are changed to -ve by:
http://review.whamcloud.com/#/c/9369/
this is wrong because callers rely on +ve to identify blocked
message which is not a failure.
To respect linux kernel coding style and not use positive error
code, this patch adds two macros as non-error returned values of
these functions:
LNET_CREDIT_OK has credit for message
LNET_CREDIT_WAIT no credit and message is blocked
both these functions will return these two values instead of 0
and EAGAIN
Signed-off-by: Liang Zhen <liang.zhen@intel.com>
Signed-off-by: James Simmons <uja.ornl@gmail.com>
Intel-bug-id: https://jira.hpdd.intel.com/browse/LU-5151
Reviewed-on: http://review.whamcloud.com/10625
Reviewed-by: Chris Horn <hornc@cray.com>
Reviewed-by: Andreas Dilger <andreas.dilger@intel.com>
Reviewed-by: Oleg Drokin <oleg.drokin@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Remove most uses of IS_ERR_VALUE(). This macro was often given an int
argument coming from PTR_ERR(). This invokes implementation defined
behavior since the long value gotten by applying PTR_ERR() to a kernel
pointer will usually not be representable as an int. Moreover it may
be just plain wrong to do this since the expressions IS_ERR(p) and
IS_ERR_VALUE((int) PTR_ERR(p)) are not equivalent for a general
pointer p.
Signed-off-by: John L. Hammond <john.hammond@intel.com>
Intel-bug-id: https://jira.hpdd.intel.com/browse/LU-3498
Reviewed-on: http://review.whamcloud.com/6759
Reviewed-by: Andreas Dilger <andreas.dilger@intel.com>
Reviewed-by: Dmitry Eremin <dmitry.eremin@intel.com>
Reviewed-by: Oleg Drokin <oleg.drokin@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
error handler of lnet_create_reply_msg() didn't release lnet_res_lock
if lnet_msg_alloc() failed.
It can be fixed by moving validation check of msg out from lock.
Signed-off-by: Liang Zhen <liang.zhen@intel.com>
Intel-bug-id: https://jira.hpdd.intel.com/browse/LU-2745
Reviewed-on: http://review.whamcloud.com/5542
Reviewed-by: Doug Oucharek <doug.s.oucharek@intel.com>
Reviewed-by: Isaac Huang <he.huang@intel.com>
Reviewed-by: Oleg Drokin <oleg.drokin@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
We consider routes "down" if the router is down or the router
NI for the target network is down. This should be reflected
in the output of /proc/sys/lnet/routes
Signed-off-by: Chris Horn <hornc@cray.com>
Intel-bug-id: https://jira.hpdd.intel.com/browse/LU-3679
Reviewed-on: http://review.whamcloud.com/7857
Reviewed-by: Cory Spitz <spitzcor@cray.com>
Reviewed-by: Isaac Huang <he.huang@intel.com>
Reviewed-by: Oleg Drokin <oleg.drokin@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Rename several variables in lnet_find_route_locked to make
the code easier to understand. Broken out of patch 7857.
Signed-off-by: Chris Horn <hornc@cray.com>
Intel-bug-id: https://jira.hpdd.intel.com/browse/LU-3679
Reviewed-on: http://review.whamcloud.com/7857
Reviewed-by: Cory Spitz <spitzcor@cray.com>
Reviewed-by: Isaac Huang <he.huang@intel.com>
Reviewed-by: Oleg Drokin <oleg.drokin@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Declare the function cache_stats_print as static since it is used
only in this file. Used grep to find occurences. Problem found using
sparse.
Signed-off-by: Bhumika Goyal <bhumirks@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Use macro IS_ERR_OR_NULL in place of tests for NULL and IS_ERR.
The Coccinelle semantic patch used to make the change is as follows:
//<smpl>
@@
expression e;
@@
- e == NULL || IS_ERR(e)
+ IS_ERR_OR_NULL(e)
//</smpl>
Signed-off-by: Amitoj Kaur Chawla <amitoj1606@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Fix the following warning generated about type casting by sparse
warning: cast removes address space of expression
The current implementation casts the structure pointers with (char *)
without __user annotation and then adds sizeof struct to it, thereby
generating the sparse warning. Fixed this by removing the unnecessary
char pointer type cast.
Signed-off-by: Niranjan Dighe <niranjan.dighe@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Doing if (rc != 0) or if (rc == 0) is bad form. This patch corrects
the LNet code to behavior according to kernel coding standards.
Signed-off-by: James Simmons <jsimmons@infradead.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This removes every instance of checking a variable against
NULL in the LNet source code.
Signed-off-by: James Simmons <jsimmons@infradead.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Properly balance the braces done wrong as reported by
checkpatch.pl.
Signed-off-by: James Simmons <jsimmons@infradead.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Several function declarations have spacing in them. Lets
remove all those instances reported by checkpatch.pl.
Signed-off-by: James Simmons <jsimmons@infradead.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cleanup all occurances of more than one variable being set per line as
reported by checkpatch.pl.
Signed-off-by: James Simmons <jsimmons@infradead.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Add missing spaces in the code reported by checkpatch.pl.
Signed-off-by: James Simmons <jsimmons@infradead.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Remove any useless blank lines reported by checkpatch.pl
for LNet layer.
Signed-off-by: James Simmons <jsimmons@infradead.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
No need for the parentheses around any function pointer.
Signed-off-by: James Simmons <jsimmons@infradead.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
In several places in the LNet core the code doesn't align
up properly. This resolves those checkpath issues.
Signed-off-by: James Simmons <jsimmons@infradead.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
In several places in the LNet core comment blocks don't follow the
linux kernel style. This patch cleans those problems up.
Signed-off-by: James Simmons <jsimmons@infradead.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
When lnet_text_buf data structure was transform from typedef
to struct the *_t which is typical of typedef was not drop.
This patch removes the *_t to be consistent.
Signed-off-by: James Simmons <jsimmons@infradead.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
LUSTRE_VERSION_ALLOWED_OFFSET is only used on the server to disallow
connection of old userspace clients.
Signed-off-by: Oleg Drokin <green@linuxhacker.ru>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
While initial code drop was corresponding to 2.3.64, lots of
different changes went in since then, and also quite a bunch of fixes,
but almost none of the new features.
Code-wise we are almost at 2.5.0, so let's call it 2.4.60 - this is a
version that was never reached in the actual pre-2.5 development, so
it should be a clear distinction of where we are now.
Signed-off-by: Oleg Drokin <green@linuxhacker.ru>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
New test scripts expect spaces around state names and square brackets
when parsing debugfs output, so add them to avoid false failures.
Signed-off-by: Oleg Drokin <green@linuxhacker.ru>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
When gettng an invalid create request in echo code (wrong group,
or no group at all), just return an error instead of crashing.
Signed-off-by: Oleg Drokin <green@linuxhacker.ru>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Dan Carpenter noticed that since we already checked for
(oa->o_valid & OBD_MD_FLID) == 0, that means
(oa->o_valid & OBD_MD_FLID) is always true after that so
no point in checking for it.
Signed-off-by: Oleg Drokin <green@linuxhacker.ru>
Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Take the size of a dereference to a variable rather than the associated
type, to make the code more resistant to type changes in the future.
The type of the pointer variable here is the same as the type in the
argument that is being replaced in sizeof().
Signed-off-by: Janani Ravichandran <janani.rvchndrn@gmail.com>
Acked-by: Julia Lawall <julia.lawall@lip6.fr>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Remove unusefull return at the end of void function.
WARNING: void function return statements are not generally useful.
Signed-off-by: Rakhi Sharma <rakhish1994@gmail.com>
Changes in v3:
shortened the subject line and make the discription more clear.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Fix the following checkpatch.pl warning:
WARNING: void function return statements are not generally useful
Signed-off-by: Bhaktipriya Shridhar <bhaktipriya96@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
this function is only referenced within the file
Signed-off-by: CHANG FU CHIAO <zector1030@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
roundup_pow_of_two return when called on a zero argument is
undefined, so don't call it like that.
This fixes a problem introduced by commit 322489d9d5
("staging/lustre: Use roundup_pow_of_two() in LNetEQAlloc()")
since 0 is a valid count parameter for LNetEQAlloc. Also manifesting
itself as an annoying kernel warning:
LNet: 3486:0:(lib-eq.c:85:LNetEQAlloc()) EQ callback is guaranteed to get every event, do you still want to set eqcount 1 for polling event which will have locking overhead? Please contact with developer to confirm
Signed-off-by: Oleg Drokin <green@linuxhacker.ru>
CC: Pekka Enberg <penberg@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Turns out we mistakenly export some pretty-wide-reaching debugfs
functions as EXPORT_SYMBOL instead of EXPORT_SYMBOL_GPL as we should,
so this patch rectifies the situation.
Signed-off-by: Oleg Drokin <green@linuxhacker.ru>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
It turns out that unlike procfs, debugfs does not really enforce
permissions for root (similar to regular filesystems), so we need
to ensure we are not providing ->write() method to read-only files
and ->read() method for write-only files at registration.
This fixes a couple of crashes on unexpected access.
Signed-off-by: Oleg Drokin <green@linuxhacker.ru>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Discard the function ccc_vmpage_page_transient as it is not used
anywhere in the kernel.
Used grep to find occurences.
Problem found using sparse.
Signed-off-by: Bhumika Goyal <bhumirks@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Remove explicit NULL comparision and replace it with a simpier form.
Detected using checkpatch.pl.
Signed-off-by: Bhumika Goyal <bhumirks@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Fixed 'braces {} are not necessary for single statement blocks'
checkpatch.pl warning.
Signed-off-by: Bhumika Goyal <bhumirks@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Added a spaces around '|' to fix the check detected by
checkpatch.pl
CHECK: spaces preferred around that '|' (ctx:VxV)
Signed-off-by: Anjali Menon <cse.anjalimenon@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This patch removes the return statement at the end of a void function as
it is not necessary.This was found by checkpatch.pl .
Signed-off-by: Bhumika Goyal <bhumirks@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
The libcfs_ioctl.h header has a comment about a snapshot ioctl
which has been removed for years. Lets remove the comment to
avoid confusion. Broken out of patch 17492.
Signed-off-by: Parinay Kondekar <parinay.kondekar@seagate.com>
Signed-off-by: James Simmons <uja.ornl@yahoo.com>
Intel-bug-id: https://jira.hpdd.intel.com/browse/LU-5844
Reviewed-on: http://review.whamcloud.com/17492
Reviewed-by: Andreas Dilger <andreas.dilger@intel.com>
Reviewed-by: Dmitry Eremin <dmitry.eremin@intel.com>
Reviewed-by: John L. Hammond <john.hammond@intel.com>
Reviewed-by: Oleg Drokin <oleg.drokin@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This fixes a bunch of sparse warnings.
There is no code change.
Signed-off-by: frank zago <fzago@cray.com>
Reviewed-on: http://review.whamcloud.com/11819
Intel-bug-id: https://jira.hpdd.intel.com/browse/LU-5396
Reviewed-by: James Simmons <uja.ornl@gmail.com>
Reviewed-by: Dmitry Eremin <dmitry.eremin@intel.com>
Signed-off-by: Oleg Drokin <green@linuxhacker.ru>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
When casting unsingned long userspace pointer from ioctl argument to
a pointer suitable for use with userspace access functions, need
to remember to add __user attribute, to make sparse happy.
Signed-off-by: Oleg Drokin <green@linuxhacker.ru>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
unsigned long user address must be casted with __user attribute
to make sparse happy when used with userspace access functions.
Signed-off-by: Oleg Drokin <green@linuxhacker.ru>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
