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4753374b1b
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357 Commits

Author SHA1 Message Date
Michal Mielewczyk
4753374b1b Change CAS_BIO_MAX_VECS value 
Previously when user tried to allocate to big bio he recieved NULL. As the
behavior was changed to `BUG()` passing out of range value is no longer legal.

Limiting the requested bio size to BIO_MAX_PAGES (on the older kernels) or to
BIO_MAX_VECS (on the newer ones) eliminates the problem as the macros represent
the max possible value.

Signed-off-by: Michal Mielewczyk <michal.mielewczyk@intel.com>
 2022-12-28 13:59:20 +01:00
Krzysztof Majzerowicz-Jaszcz
2eef5ce36b Fix for using uninitialized variable in printk 
This commit fixes the case of using unintialized variable in error
handling path after failed core addition.

Signed-off-by: Krzysztof Majzerowicz-Jaszcz <krzysztof.majzerowicz-jaszcz@intel.com>
 2022-11-08 11:47:23 +00:00
Krzysztof Majzerowicz-Jaszcz
f1bf2eb909 Kernel 6.0 support 
This patch introduces kernel 6.0 support for Open CAS

Signed-off-by: Krzysztof Majzerowicz-Jaszcz <krzysztof.majzerowicz-jaszcz@intel.com>
 2022-10-28 09:41:43 +02:00
Robert Baldyga
cefaa3b415
Merge pull request #1380 from robertbaldyga/available-memory-check 
Use available memory statistic when possible
 2022-10-25 11:04:15 +02:00
Krzysztof Majzerowicz-Jaszcz
f0af7cb52d Open CAS Linux kernel 5.18 support 
This patch introduces the support for 5.18 kernel.

Signed-off-by: Krzysztof Majzerowicz-Jaszcz <krzysztof.majzerowicz-jaszcz@intel.com>
 2022-10-24 09:53:01 +00:00
Robert Baldyga
b00de9c940 Use available memory statistic when possible 
Update function returning size of free memory to use available statistic
if that's supported by given kernel. This function is used to check
whether there is enough memory to start cache, and available statistic is
preferred for this check over free statistic, as it does include size of
page cache allocations which can be easily reclaimed by the system.

Signed-off-by: Robert Baldyga <robert.baldyga@intel.com>
 2022-10-12 08:12:42 +02:00
Robert Baldyga
de060d1d5b
Merge pull request #1307 from mmichal10/kmemleak 
Integrate kmemleak into CAS
 2022-10-04 10:03:37 +02:00
Robert Baldyga
64420d7ce7 Remove blkdev_can_hndl_bio() function 
This check will always return 0, as none of kernel versions supported
by Open CAS sets a barrier flag in for bio. Those flags are exclusive to
struct request, which is no longer used by Open CAS.

Signed-off-by: Robert Baldyga <robert.baldyga@intel.com>
 2022-09-27 16:39:33 +02:00
Robert Baldyga
ec7cee7e75
Merge pull request #1352 from robertbaldyga/exp_obj-refactor 
Refactor disk/exp_obj API
 2022-09-27 10:11:57 +02:00
Michal Mielewczyk
38bef1f7fe Integrate kmemleak into CAS 
Kmemleak is a tool which allows to detect memory leaks in kernel. It requires
`CONFIG_DEBUG_KMEMLEAK` to be enabled during kernel compilation. Otherwise all
the kmemleak_* functions are NOPs.

Signed-off-by: Michal Mielewczyk <michal.mielewczyk@intel.com>
 2022-09-26 15:44:16 +02:00
Robert Baldyga
5e2c1c15cf Merge exp obj create/activate 
Signed-off-by: Robert Baldyga <robert.baldyga@intel.com>
 2022-09-23 14:21:37 +02:00
Robert Baldyga
d0d17545eb Move major/minor management to exported object code 
Signed-off-by: Robert Baldyga <robert.baldyga@intel.com>
 2022-09-23 14:21:37 +02:00
Robert Baldyga
61dff1f6fd Move private field to struct cas_exp_obj 
Signed-off-by: Robert Baldyga <robert.baldyga@intel.com>
 2022-09-23 14:21:37 +02:00
Robert Baldyga
dc390adf49 Move exported object specific properties to struct cas_exp_obj 
Signed-off-by: Robert Baldyga <robert.baldyga@intel.com>
 2022-09-23 14:21:37 +02:00
Robert Baldyga
72cf855355 Move openers_lock to struct cas_exp_obj 
Signed-off-by: Robert Baldyga <robert.baldyga@intel.com>
 2022-09-23 14:21:37 +02:00
Robert Baldyga
67ed36ae0e Remove disk kobj 
Simplify disk life cycle.

Signed-off-by: Robert Baldyga <robert.baldyga@intel.com>
 2022-09-23 14:21:37 +02:00
Robert Baldyga
2f54aea87d Remove exported object kobj 
Simplify exported object lifecycle.

Signed-off-by: Robert Baldyga <robert.baldyga@intel.com>
 2022-09-23 14:21:36 +02:00
Robert Baldyga
ad783917d0 Remove one-liner helper functions 
Those were not very helpful. Mostly made the code harder to read.

Signed-off-by: Robert Baldyga <robert.baldyga@intel.com>
 2022-09-23 14:20:47 +02:00
Robert Baldyga
1fe83b4972 Manage lifetime of exported object in top adapter 
Signed-off-by: Robert Baldyga <robert.baldyga@intel.com>
 2022-09-23 14:20:42 +02:00
Robert Baldyga
74c17d5115
Merge pull request #1351 from live4thee/fix-compile-error 
cas_cache: fix compile error when set CAS_DEBUG_IO=1
 2022-09-20 16:04:56 +02:00
Robert Baldyga
8945b482ce Remove private parameter from cas_disk_open() 
Signed-off-by: Robert Baldyga <robert.baldyga@intel.com>
 2022-09-19 15:37:58 +02:00
Robert Baldyga
6d2266f7ee Remove cas_disk_claim() 
Signed-off-by: Robert Baldyga <robert.baldyga@intel.com>
 2022-09-19 15:37:56 +02:00
David Lee
193f2c9a3a cas_cache: fix compile error when set CAS_DEBUG_IO=1 
Signed-off-by: David Lee <live4thee@gmail.com>
 2022-09-19 19:21:43 +08:00
Robert Baldyga
4ed64582a6 Remove cas_disk from naming in code 
Signed-off-by: Robert Baldyga <robert.baldyga@intel.com>
 2022-09-19 10:38:21 +02:00
Robert Baldyga
edc293495d Remove cas_disk.h 
Signed-off-by: Robert Baldyga <robert.baldyga@intel.com>
 2022-09-16 15:16:28 +02:00
Robert Baldyga
2aae800c45 Move helpers from headers to source files 
Move helper functions that are used in only one source file to that file.

Signed-off-by: Robert Baldyga <robert.baldyga@intel.com>
 2022-09-16 15:16:28 +02:00
Robert Baldyga
a7370366cb Remove unused functions 
Signed-off-by: Robert Baldyga <robert.baldyga@intel.com>
 2022-09-16 15:16:28 +02:00
Robert Baldyga
13d3decfa9 Consolidate modules 
Signed-off-by: Robert Baldyga <robert.baldyga@intel.com>
 2022-09-16 15:16:28 +02:00
Robert Baldyga
a03c577f59
Merge pull request #1319 from robertbaldyga/casdsk-remove-dead-code 
Clean cas_disk out of dead code
 2022-09-09 09:54:34 +02:00
Adam Rutkowski
aaab620c8d use INIT_WORK_ONSTACK for work on stack 
Signed-off-by: Adam Rutkowski <adam.j.rutkowski@intel.com>
 2022-09-01 01:04:22 +02:00
Robert Baldyga
8eb512a743 Remove cas_disk symbol lookup 
Signed-off-by: Robert Baldyga <robert.baldyga@intel.com>
 2022-08-25 13:02:25 +02:00
Robert Baldyga
3102856025 Remove unused exported symbols from cas_disk 
Signed-off-by: Robert Baldyga <robert.baldyga@intel.com>
 2022-08-25 12:33:51 +02:00
Karolina Rogowska
4fc0c4f8bb
Merge pull request #1310 from pdebski21/fix_standby_detach_error_msg 
Fix error message when CAS already is in standby detach state
 2022-08-19 15:01:24 +02:00
Piotr Debski
9273b39d5d Fix error message for cache already in standby detach state 
Signed-off-by: Piotr Debski <piotr.debski@intel.com>
 2022-08-19 12:36:22 +02:00
Krzysztof Majzerowicz-Jaszcz
e997f768b0 Rework for RHEL8.5 
Rework for RHEL8.5 compatibility to avoid potential bug of exiting queue
after IO completion on a different CPU.

Targeted RHEL kernel version corrected.

Signed-off-by: Krzysztof Majzerowicz-Jaszcz <krzysztof.majzerowicz-jaszcz@intel.com>
 2022-08-16 13:50:59 +02:00
Krzysztof Majzerowicz-Jaszcz
b983eeb751 RHEL8.5 kernel 4.18 support fix 
This patch adds support for RHEL8.5 with kernel 4.18.0.348.2.1.el8 and
later.

Additional request queue operations added for these kernels.
Configure scripts added/updated.

Fixes #1278

Signed-off-by: Krzysztof Majzerowicz-Jaszcz <krzysztof.majzerowicz-jaszcz@intel.com>
 2022-08-12 08:52:36 +02:00
Krzysztof Majzerowicz-Jaszcz
bd9548cff4 Potential double IO completion fix 
In specific circumstances, IO could be completed twice.
This patch fixes this problem.

Signed-off-by: Krzysztof Majzerowicz-Jaszcz <krzysztof.majzerowicz-jaszcz@intel.com>
 2022-08-10 11:28:43 +02:00
Piotr Debski
dd95c8be4d Add core, try-add script missing core-id parameter fix 
Signed-off-by: Piotr Debski <piotr.debski@intel.com>
 2022-07-12 11:14:44 +02:00
Robert Baldyga
c3f5a209c0
Merge pull request #1246 from robertbaldyga/dev-conf-lifecycle-fix 
Fix device config life cycle management
 2022-06-27 12:04:23 +02:00
Krzysztof Majzerowicz-Jaszcz
2739d83bec Fix for null pointer dereference bug 
Null pointer dereference occurs when terminating cache is standby detached state.
This fixes this problem.

Fixes #1235

Signed-off-by: Krzysztof Majzerowicz-Jaszcz <krzysztof.majzerowicz-jaszcz@intel.com>
 2022-06-24 06:06:49 -04:00
Robert Baldyga
f2adc702e7 Fix device config life cycle management 
Signed-off-by: Robert Baldyga <robert.baldyga@intel.com>
 2022-06-24 08:52:32 +02:00
Michal Mielewczyk
d9e643a41a Leave space for terminating buffers with null 
Signed-off-by: Michal Mielewczyk <michal.mielewczyk@intel.com>
 2022-06-24 08:05:11 +02:00
Robert Baldyga
7e6c8b97d7 Fix required memory check in the fallback path 
Signed-off-by: Robert Baldyga <robert.baldyga@intel.com>
 2022-06-22 20:41:27 +02:00
Jan Musial
6771f54b69 Use new OCF volume API 
Signed-off-by: Jan Musial <jan.musial@intel.com>
 2022-06-09 12:54:32 +02:00
Krzysztof Majzerowicz-Jaszcz
12ddca1cf3 OpenCAS Linux kernel 5.15 adaptation 
This patch adapts OpenCAS Linux to compile and work with kernel v5.15

Commit id's from the kernel affecting OpenCAS:

commit 0e0ccdecb3cff95a350b4364e7ebbaa754d0e47d
    block: remove bdget_disk

commit 9c2b9dbafc067e173db30c4fd0636392d27944e8
    block: remove alloc_disk and alloc_disk_node

commit a8698707a1835be3abd12a3b28079a80999f8dee
    block: move bd_mutex to struct gendisk

commit 2cece3778475abc855084d897a3cf61249798ad9
    scsi: scsi_ioctl: Remove scsi_req_init()

commit 2f4731dcd0bb73379fbb9e3eb07ae7324125caef
    block: remove bdput

commit 14cf1dbb55bb07427babee425fd2a8a9300737cc
    block: remove bdgrab

Signed-off-by: Krzysztof Majzerowicz-Jaszcz <krzysztof.majzerowicz-jaszcz@intel.com>
 2022-06-09 08:49:32 +02:00
Piotr Debski
f773d7fff3 standard error message for each disallowed management operation in standby mode 
Signed-off-by: Piotr Debski <piotr.debski@intel.com>
 2022-04-25 23:47:52 +02:00
Robert Baldyga
8fae9e2476 Destroy exp obj workqueue properly 
Signed-off-by: Robert Baldyga <robert.baldyga@intel.com>
 2022-04-08 17:16:04 +02:00
Adam Rutkowski
5bcba78e7f Make sure classifier string is null terminated 
Signed-off-by: Adam Rutkowski <adam.j.rutkowski@intel.com>
 2022-04-08 16:42:25 +02:00
Michal Mielewczyk
531c7856bd Prevent uninitialized value 
Signed-off-by: Michal Mielewczyk <michal.mielewczyk@intel.com>
 2022-04-08 16:42:25 +02:00
Michal Mielewczyk
68cadd90f8 Destroy volume if it couldn't be opened 
Signed-off-by: Michal Mielewczyk <michal.mielewczyk@intel.com>
 2022-04-08 16:42:25 +02:00