[LU-523] No prepare_write for lockless IO Created: 21/Jul/11  Updated: 30/Jul/11  Resolved: 30/Jul/11

Status: Resolved
Project: Lustre
Component/s: None
Affects Version/s: None
Fix Version/s: None

Type: Bug Priority: Critical
Reporter: Jinshan Xiong (Inactive) Assignee: Jinshan Xiong (Inactive)
Resolution: Fixed Votes: 0
Labels: None

Severity: 3
Rank (Obsolete): 4945

 Description   

For page unaligned write, CLIO does prepare_write even for lockless IO and then write them back, this will cause data corruption since some of data is not covered by lock.

 Comments   
Comment by Jinshan Xiong (Inactive) [ 21/Jul/11 ]

Patch is at: http://review.whamcloud.com/1130

Comment by Build Master (Inactive) [ 25/Jul/11 ]

Integrated in lustre-master » x86_64,client,el5,ofa #226
LU-523: No prepare_write for lockless IO

Oleg Drokin : f49d4116040818a8b3888df55dacb1f16b0b65c6
Files :

  • lustre/osc/osc_request.c
  • lustre/osc/osc_internal.h
  • lustre/obdclass/cl_io.c
  • lustre/osc/osc_page.c
  • lustre/osc/osc_io.c
Comment by Build Master (Inactive) [ 26/Jul/11 ]

Integrated in lustre-master » i686,client,el6,inkernel #227
LU-523: No prepare_write for lockless IO

Oleg Drokin : f49d4116040818a8b3888df55dacb1f16b0b65c6
Files :

  • lustre/osc/osc_internal.h
  • lustre/obdclass/cl_io.c
  • lustre/osc/osc_io.c
  • lustre/osc/osc_page.c
  • lustre/osc/osc_request.c
Comment by Build Master (Inactive) [ 26/Jul/11 ]

Integrated in lustre-master » x86_64,client,el5,inkernel #227
LU-523: No prepare_write for lockless IO

Oleg Drokin : f49d4116040818a8b3888df55dacb1f16b0b65c6
Files :

  • lustre/obdclass/cl_io.c
  • lustre/osc/osc_io.c
  • lustre/osc/osc_internal.h
  • lustre/osc/osc_request.c
  • lustre/osc/osc_page.c
Comment by Build Master (Inactive) [ 26/Jul/11 ]

Integrated in lustre-master » i686,server,el5,inkernel #227
LU-523: No prepare_write for lockless IO

Oleg Drokin : f49d4116040818a8b3888df55dacb1f16b0b65c6
Files :

  • lustre/obdclass/cl_io.c
  • lustre/osc/osc_request.c
  • lustre/osc/osc_page.c
  • lustre/osc/osc_internal.h
  • lustre/osc/osc_io.c
Comment by Build Master (Inactive) [ 26/Jul/11 ]

Integrated in lustre-master » x86_64,client,el6,inkernel #227
LU-523: No prepare_write for lockless IO

Oleg Drokin : f49d4116040818a8b3888df55dacb1f16b0b65c6
Files :

  • lustre/osc/osc_io.c
  • lustre/osc/osc_request.c
  • lustre/osc/osc_internal.h
  • lustre/osc/osc_page.c
  • lustre/obdclass/cl_io.c
Comment by Build Master (Inactive) [ 26/Jul/11 ]

Integrated in lustre-master » i686,server,el5,ofa #227
LU-523: No prepare_write for lockless IO

Oleg Drokin : f49d4116040818a8b3888df55dacb1f16b0b65c6
Files :

  • lustre/obdclass/cl_io.c
  • lustre/osc/osc_internal.h
  • lustre/osc/osc_io.c
  • lustre/osc/osc_request.c
  • lustre/osc/osc_page.c
Comment by Build Master (Inactive) [ 26/Jul/11 ]

Integrated in lustre-master » x86_64,client,sles11,inkernel #227
LU-523: No prepare_write for lockless IO

Oleg Drokin : f49d4116040818a8b3888df55dacb1f16b0b65c6
Files :

  • lustre/osc/osc_request.c
  • lustre/obdclass/cl_io.c
  • lustre/osc/osc_io.c
  • lustre/osc/osc_internal.h
  • lustre/osc/osc_page.c
Comment by Build Master (Inactive) [ 26/Jul/11 ]

Integrated in lustre-master » x86_64,server,el6,inkernel #227
LU-523: No prepare_write for lockless IO

Oleg Drokin : f49d4116040818a8b3888df55dacb1f16b0b65c6
Files :

  • lustre/osc/osc_request.c
  • lustre/osc/osc_page.c
  • lustre/obdclass/cl_io.c
  • lustre/osc/osc_io.c
  • lustre/osc/osc_internal.h
Comment by Build Master (Inactive) [ 26/Jul/11 ]

Integrated in lustre-master » x86_64,server,el5,inkernel #227
LU-523: No prepare_write for lockless IO

Oleg Drokin : f49d4116040818a8b3888df55dacb1f16b0b65c6
Files :

  • lustre/osc/osc_request.c
  • lustre/osc/osc_page.c
  • lustre/osc/osc_internal.h
  • lustre/obdclass/cl_io.c
  • lustre/osc/osc_io.c
Comment by Build Master (Inactive) [ 26/Jul/11 ]

Integrated in lustre-master » x86_64,client,ubuntu1004,inkernel #227
LU-523: No prepare_write for lockless IO

Oleg Drokin : f49d4116040818a8b3888df55dacb1f16b0b65c6
Files :

  • lustre/osc/osc_request.c
  • lustre/osc/osc_io.c
  • lustre/osc/osc_internal.h
  • lustre/osc/osc_page.c
  • lustre/obdclass/cl_io.c
Comment by Build Master (Inactive) [ 26/Jul/11 ]

Integrated in lustre-master » i686,client,el5,ofa #227
LU-523: No prepare_write for lockless IO

Oleg Drokin : f49d4116040818a8b3888df55dacb1f16b0b65c6
Files :

  • lustre/obdclass/cl_io.c
  • lustre/osc/osc_request.c
  • lustre/osc/osc_page.c
  • lustre/osc/osc_io.c
  • lustre/osc/osc_internal.h
Comment by Build Master (Inactive) [ 26/Jul/11 ]

Integrated in lustre-master » i686,client,el5,inkernel #227
LU-523: No prepare_write for lockless IO

Oleg Drokin : f49d4116040818a8b3888df55dacb1f16b0b65c6
Files :

  • lustre/osc/osc_request.c
  • lustre/osc/osc_internal.h
  • lustre/obdclass/cl_io.c
  • lustre/osc/osc_io.c
  • lustre/osc/osc_page.c
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