- 27 Apr, 2014 20 commits
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Brian Behlendorf authored
When allocating a reply buffer for the striping information don't assume the unlikely worst case. Instead, assume the common case and size the buffer based on the observed default ea/cookie size. The default size is initialized to a single stripe and allowed to grow up to an entire page if needed. This means that for smallish filesystems (less than ~21 OSTs) where the worst case striping information can fit in a single page there is effectively no change. Only for larger filesystem will the default be less than the maximum. This has a number of advantages. * By limiting the default reply buffer size we avoid always vmalloc()'ing the buffer because it exceeds four pages in size and instead kmalloc() it. This prevents the client from thrashing on the global vmalloc() spin lock. * A reply buffer of exactly the right size (no larger) is allocated in the overflow case. These larger reply buffers are still unlikely to exceed the 16k limit where a vmalloc() will occur. * Saves memory in the common case. Wide striped files exceeded the default are expected to be the exception. The reason this patch works is because the ptlrpc layer is smart enough to reallocate the reply buffer when an overflow occurs. Therefore the client doesn't have to drop the incoming reply and send a new request with a larger reply buffer. It's also worth mentioning that the reply buffer always contains a significant amount of extra padding because they are rounded up to the nearest power of two. This means that even files striped wider than the default have a good chance of fitting in the allocated reply buffer. Also remove client eadatasize check in mdt xattr packing because as said above client can handle -EOVERFLOW. Signed-off-by:
Brian Behlendorf <behlendorf1@llnl.gov> Signed-off-by:
Lai Siyao <lai.siyao@intel.com> Reviewed-on: http://review.whamcloud.com/6339 Intel-bug-id: https://jira.hpdd.intel.com/browse/LU-3338Reviewed-by:
James Simmons <uja.ornl@gmail.com> Reviewed-by:
Andreas Dilger <andreas.dilger@intel.com> Reviewed-by:
Bob Glossman <bob.glossman@intel.com> Signed-off-by:
Oleg Drokin <oleg.drokin@intel.com> Signed-off-by:
Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Jinshan Xiong authored
Otherwise, it will cause deadlock because it essentially holds some sub locks and then to request others in an arbitrary order. Signed-off-by:
Jinshan Xiong <jinshan.xiong@intel.com> Reviewed-on: http://review.whamcloud.com/9152Reviewed-by:
Bobi Jam <bobijam@gmail.com> Signed-off-by:
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Bobi Jam authored
File write before io loop will take lli_trun_sem read semaphore to protect osc_extent, while after generic_file_aio_write() done, it could possible need to kill suid or sgid, which will call ll_setattr_raw() to change the inode's attribute, and it does not involve size. So the ll_truc_sem write semaphore should be constrained around ll_setattr_ost() to not come across the lli_trunc_sem read semaphore get from the normal file write path. Signed-off-by:
Bobi Jam <bobijam.xu@intel.com> Reviewed-on: http://review.whamcloud.com/9267 Intel-bug-id: https://jira.hpdd.intel.com/browse/LU-4627Reviewed-by:
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Bobi Jam authored
The last parameter @datasync of fsync() has following indication: * if datasync=0, we'd always flush data and metadata * if datasync=1, we'd always flush data while does not flush modifed metadata unless that metadata is needed in order to allow a subsequent data retrieval to be correctly handled. For example, a change to the file size would require a metadata flush. Lustre client can not tell the difference easily, and would issue MDS_SYNC and OST_SYNC in all cases. Signed-off-by:
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Li Xi authored
Setxattr does not check the permission when setting ACL xattrs. This will cause security problem because any user can walk around permission checking by changing ACL rules. Signed-off-by:
Li Xi <lixi@ddn.com> Reviewed-on: http://review.whamcloud.com/9473 Intel-bug-id: https://jira.hpdd.intel.com/browse/LU-4704Reviewed-by:
John L. Hammond <john.hammond@intel.com> Signed-off-by:
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James Nunez authored
The total size of an HSM archive request may exceed the desired (LNET) message. When this happens, it can hang the client and not allow the archive request to succeed. Before we know the total size of the hsm_action_items, we need to limit the size of the reguest. Doing this limits the number of items that can be sent in one archive request. We'e reduced the size allowed for the user archive request to MDS_MAXREQSIZE/3. Signed-off-by:
James Nunez <james.a.nunez@intel.com> Reviewed-on: http://review.whamcloud.com/9393 Intel-bug-id: https://jira.hpdd.intel.com/browse/LU-4639Reviewed-by:
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Peng Tao authored
If fsname is 8-byte aligned, hai_zero fails to count the ending NULL terminator causing hai to directly attached after fsname and future hai_zero will return a different position for first hai. Signed-off-by:
Peng Tao <bergwolf@gmail.com> Reviewed-on: http://review.whamcloud.com/9431 Intel-bug-id: https://jira.hpdd.intel.com/browse/LU-4689Reviewed-by:
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John L. Hammond authored
Remove the unused function llog_obd_add(). Remove the unused count and parameters from llog_cancel(). Move dump_lsm() from obdclass to the only module that uses it (lov). Remove obd_lov.h. Signed-off-by:
Mike Pershin <mike.pershin@intel.com> Signed-off-by:
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John L. Hammond authored
Remove the unused functions lov_llog_init(), lov_llog_finish(), their supporting functions, and the file lov_log.c. Signed-off-by:
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Andreas Dilger authored
Quiet some common console error messages for permission errors that can be hit in common cases. Signed-off-by:
Faccini Bruno <bruno.faccini@intel.com> Reviewed-by:
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Ann Koehler authored
In Lustre 2.4, the flags passed to the memory allocation functions are translated from CFS enumeration values types to the kernel GFP values by calling cfs_alloc_flags_to_gfp(). This function adds __GFP_WAIT to all flags except CFS_ALLOC_ATOMIC. In 2.5, when the cfs wrappers were dropped, cfs_alloc_flags_to_gfp() was removed and the CFS_ALLOC_xxxx was simply replaced with __GFP_xxxx. This means that most memory allocation calls are missing the __GFP_WAIT flag. The result is that Lustre experiences more ENOMEM errors, many of which the higher levels of Lustre do not handle robustly. Notes GFP_NOFS = __GFP_WAIT | __GFP_IO. So the patch replaces __GFP_IO with GFP_NOFS. Patch does not add __GFP_WAIT to GFP_IOFS. GFP_IOFS was not used in Lustre 2.4 so it has never been used with __GFP_WAIT. Signed-off-by:
Ann Koehler <amk@cray.com> Signed-off-by:
Emoly Liu <emoly.liu@intel.com> Reviewed-on: http://review.whamcloud.com/9223 Intel-bug-id: https://jira.hpdd.intel.com/browse/LU-4357Reviewed-by:
Liang Zhen <liang.zhen@intel.com> Reviewed-by:
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Andriy Skulysh authored
Add rpc_cache for allocating ptlrpc_requests. Xyratex-bug-id: MRP-689 Signed-off-by:
Andriy Skulysh <Andriy_Skulysh@xyratex.com> Signed-off-by:
Niu Yawei <yawei.niu@intel.com> Reviewed-on: http://review.whamcloud.com/6874 Intel-bug-id: https://jira.hpdd.intel.com/browse/LU-2424Reviewed-by:
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Dmitry Eremin authored
Array 'message_buf' of size 500 may use index value(s) -1 Object 'enc_key.data' was freed at line 164 after being freed by calling 'free' at line 150. Also there are 3 similar errors on line(s) 164. Suspicious dereference of pointer 'vmsg' before NULL check at line 187. Also there are 2 similar errors on line(s) 196, 205. Suspicious dereference of pointer 'rmsg' before NULL check at line 191. Also there are 2 similar errors on line(s) 200, 209. Signed-off-by:
Dmitry Eremin <dmitry.eremin@intel.com> Reviewed-on: http://review.whamcloud.com/9274 Intel-bug-id: https://jira.hpdd.intel.com/browse/LU-4629Reviewed-by:
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Andreas Dilger authored
If a connection has been stopped with ptlrpc_pinger_del_import() and marked obd_no_recov, don't reconnect in ptlrpc_disconnect_import() if the import is already disconnected. Otherwise, without the pinger it will just wait there indefinitely for the reconnection that will never happen. Put the obd_no_recov check inside ptlrpc_import_in_recovery() so that any threads waiting on the connection to recover would also be broken out of their sleep if obd_no_recov is set. Signed-off-by:
Nathaniel Clark <nathaniel.l.clark@intel.com> Reviewed-by:
wangdi <di.wang@intel.com> Signed-off-by:
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Niu Yawei authored
The LDLM_FL_BLOCK_NOWAIT flag should be cleared when re-enqueue the agl lock as normal glimpse, otherwise, it won't get size back if there is conflicting locks on other client. Signed-off-by:
Ned Bass <bass6@llnl.gov> Reviewed-by:
Fan Yong <fan.yong@intel.com> Signed-off-by:
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Li Xi authored
This patch moves lock's skip flag clearing from lru-delete to lru-add code to prevent clearing lock's flag without resource lock protection. Signed-off-by:
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Matt Ezell authored
LNET messages that are dropped are not accounted for correctly in /proc/sys/lnet/stats. What I assume to be a simple typo is causing drop_length to be double-counted and drop_count to never be incremented. Signed-off-by:
Matt Ezell <ezellma@ornl.gov> Reviewed-on: http://review.whamcloud.com/9096 Intel-bug-id: https://jira.hpdd.intel.com/browse/LU-4577Reviewed-by:
Isaac Huang <he.huang@intel.com> Reviewed-by:
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Hongchao Zhang authored
In ptlrpc_activate_import(), obd_import->imp_deactive should be checked if it is deactivated, otherwise it will trigger an LBUG in ptlrpc_invalidate_import(): ptlrpc_invalidate_import() ASSERTION(imp->imp_invalid) failed Signed-off-by:
Hongchao Zhang <hongchao.zhang@intel.com> Reviewed-on: http://review.whamcloud.com/8747 Intel-bug-id: https://jira.hpdd.intel.com/browse/LU-4386Reviewed-by:
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Cheng Shao authored
Function ptlrpc_update_export_timer generates lots of D_HA level log messages whenever the export timer gets updated. Those log messages are found little use for issue investigations, and it will take space in the Lustre log buffer. We are removing it now. Xyratex-bug-id: MRP-733 Signed-off-by:
Cheng Shao <cheng_shao@xyratex.com> Reviewed-on: http://review.whamcloud.com/9147 Intel-bug-id: https://jira.hpdd.intel.com/browse/LU-4590Reviewed-by:
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Patrick Farrell authored
lustre_get_emerg_rs() set the size of the reply buffer to zero by mistake, which will cause LBUG in null_alloc_rs() when memory pressure is high. This patch fix this problem and adds a size check to avoid the problem of insufficient buffer size. Signed-off-by:
Patrick Farrell <paf@cray.com> Reviewed-on: http://review.whamcloud.com/8200 Intel-bug-id: https://jira.hpdd.intel.com/browse/LU-3680Reviewed-by:
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- 26 Apr, 2014 20 commits
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Jes Sorensen authored
_rtw_free_network23a() and _rtw_free_network23a_nolock23a() are now identical - one copy should do. Signed-off-by:
Jes Sorensen <Jes.Sorensen@redhat.com> Signed-off-by:
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Jes Sorensen authored
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Jes Sorensen authored
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Jes Sorensen authored
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Jes Sorensen authored
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Jes Sorensen authored
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Jes Sorensen authored
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Jes Sorensen authored
All callers get here by searching for the WPA OUI first, so no point checking for it once we get here. Signed-off-by:
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Jes Sorensen authored
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Jes Sorensen authored
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Larry Finger authored
The following locations in the code treat the frame control as u16 rather than the correct __le16: drivers/staging/rtl8723au/core/rtw_mlme_ext.c:2471:15: expected unsigned short *fctrl drivers/staging/rtl8723au/core/rtw_mlme_ext.c:2644:15: expected unsigned short *fctrl drivers/staging/rtl8723au/core/rtw_mlme_ext.c:2849:15: expected unsigned short *fctrl drivers/staging/rtl8723au/core/rtw_mlme_ext.c:2994:15: expected unsigned short *fctrl drivers/staging/rtl8723au/core/rtw_mlme_ext.c:3308:15: expected unsigned short *fctrl drivers/staging/rtl8723au/core/rtw_mlme_ext.c:3578:15: expected unsigned short *fctrl drivers/staging/rtl8723au/core/rtw_mlme_ext.c:3699:15: expected unsigned short *fctrl drivers/staging/rtl8723au/core/rtw_mlme_ext.c:3821:15: expected unsigned short *fctrl drivers/staging/rtl8723au/core/rtw_mlme_ext.c:3932:15: expected unsigned short *fctrl drivers/staging/rtl8723au/core/rtw_mlme_ext.c:4004:15: expected unsigned short [usertype] *fctrl drivers/staging/rtl8723au/core/rtw_mlme_ext.c:4194:15: expected unsigned short *fctrl drivers/staging/rtl8723au/core/rtw_xmit.c:911:23: expected unsigned short [usertype] *fctrl drivers/staging/rtl8723au/hal/rtl8723a_cmd.c:216:15: expected unsigned short [usertype] *fctrl drivers/staging/rtl8723au/hal/rtl8723a_cmd.c:313:15: expected unsigned short [usertype] *fctrl drivers/staging/rtl8723au/hal/rtl8723a_cmd.c:350:15: expected unsigned short [usertype] *fctrl drivers/staging/rtl8723au/hal/rtl8723a_cmd.c:419:15: expected unsigned short [usertype] *fctrl drivers/staging/rtl8723au/os_dep/ioctl_cfg80211.c:314:15: expected unsigned short *fctrl drivers/staging/rtl8723au/os_dep/ioctl_cfg80211.c:2357:15: expected unsigned short *fctrl Signed-off-by:
Larry Finger <Larry.Finger@lwfinger.net> Signed-off-by:
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Jes Sorensen authored
This should make sparse happier. Reported-by:
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Jes Sorensen authored
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Jes Sorensen authored
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Jes Sorensen authored
Lots of hoops for a dummy function which was never called Signed-off-by:
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Jes Sorensen authored
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Jes Sorensen authored
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Jes Sorensen authored
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Jes Sorensen authored
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Jes Sorensen authored
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