glusterfs.git/xlators/performance, branch v3.1.6qa4

performance/io-cache: fix deadlock in ioc_fault_cbk

2011-08-05T09:40:10+00:00

Change-Id: I899abecd17025c299819b36c2d39adc52adb1bd6
BUG: 3340
Reviewed-on: http://review.gluster.com/177
Tested-by: Gluster Build System 
Reviewed-by: Anand Avati

performance/io-cache: hold lock on ioc_inode whereever a page is being accessed/modified

2011-07-29T08:31:24+00:00

Change-Id: Idbec92e3ffb838a0ac866fb42ceb6ee26a0b8a87
BUG: 2939
Reviewed-on: http://review.gluster.com/25
Tested-by: Gluster Build System 
Reviewed-by: Anand Avati

performance/quick-read: Handle unwinding of frame

2011-07-29T08:29:04+00:00

 corresponding to read fop properly, while validating cache.

  - there was a possibility of double unwind in case of errors.
  - use a new frame to do open in fd-based fops.
    In case of errors, qr_resume_pending_ops will be called to resume all the
    fops waiting on open. Hence if we use frame corresponding to fop (without
    creating a new one), there is a possibility of frame being freed by the
    time open would've returned to quick-read.

Change-Id: I45a528e02b0886d22161ac24ab3e147a26d5ee7d
BUG: 3168
Reviewed-on: http://review.gluster.com/53
Tested-by: Gluster Build System 
Reviewed-by: Anand Avati

quick-read: Fix dirname(3) usage

2011-07-29T08:28:37+00:00

glibc dirname() modify the string it is given and returns it.
glusterfs takes this behavior for granted, and assume that if it
gives a malloc'ed string to dirname(), then it can free()) the
return value.

Here is what SUSv2 says:
http://opengroup.org/onlinepubs/007908799/xsh/dirname.html
"The dirname() function may modify the string pointed to by path,
and may return a pointer to static storage"

At least NetBSD returns a static storage. glusterfs will return it to
a calling function that has the responsability to free it, causing
a SIGSEGV.

Thanks to: Emmanuel Dreyfus 

Change-Id: I8b1b946a005ee487b4b9fb23c0f85a41facfe7c4
BUG: 2923
Reviewed-on: http://review.gluster.com/52
Tested-by: Gluster Build System 
Reviewed-by: Anand Avati

performance/quick-read: Perform error handling only when GF_CALLOC fails

2011-07-29T08:28:05+00:00

Change-Id: I7a1e2cae3de8794b252ebbf0de7ffab5ba2900d1
BUG: 3011
Reviewed-on: http://review.gluster.com/51
Tested-by: Gluster Build System 
Reviewed-by: Vijay Bellur

performance/quick-read: dump inode and fdctx during statedump.

2011-07-29T08:27:19+00:00

Change-Id: I8641e1f2e9e031c1b443821b16ef4a365926a8a8
BUG: 1059
Reviewed-on: http://review.gluster.com/50
Tested-by: Gluster Build System 
Reviewed-by: Anand Avati

performance/quick-read: propagate errors during open back to actual fops.

2011-07-29T08:26:32+00:00

- If open fails and there are any other fops waiting on that open, those fops
    should also unwind with appropriate errors. Before this patch, irrespective
    of success/failure of open, fops waiting on it were stack_wound and since
    fd was invalid, they would fail with EBADFD errors. Due to this
    actual error would've got masked by EBADFD.

Change-Id: I65f88a681ea573a964fae132073696d32701882f
BUG: 2346
Reviewed-on: http://review.gluster.com/49
Tested-by: Gluster Build System 
Reviewed-by: Anand Avati

write-behind: changes in volume_options to assist

2011-07-17T14:47:00+00:00

Signed-off-by: Kaushik BV 
Signed-off-by: Anand Avati 

BUG: 2041 (volume set help option)
URL: http://bugs.gluster.com/cgi-bin/bugzilla3/show_bug.cgi?id=2041

quick-read: changes in volume_options to assist volume set help/help-xml

2011-07-17T14:46:54+00:00

Signed-off-by: Kaushik BV 
Signed-off-by: Anand Avati 

BUG: 2041 (volume set help option)
URL: http://bugs.gluster.com/cgi-bin/bugzilla3/show_bug.cgi?id=2041

BUG: 2041 (volume set help option)
URL: http://bugs.gluster.com/cgi-bin/bugzilla3/show_bug.cgi?id=2041

io-threads: changes in volume_options to assist volume set help/help-xml

2011-07-17T14:46:48+00:00

Signed-off-by: Kaushik BV 
Signed-off-by: Anand Avati 

BUG: 2041 (volume set help option)
URL: http://bugs.gluster.com/cgi-bin/bugzilla3/show_bug.cgi?id=2041

BUG: 2041 (volume set help option)
URL: http://bugs.gluster.com/cgi-bin/bugzilla3/show_bug.cgi?id=2041