glusterfs.git/xlators/storage/posix/src, branch v3.3.2qa2

storage/posix: return -1 if lstat call returns non zero value apart from -1

2012-10-12T01:08:20+00:00

* If lstat() call in posix_{pstat, istat} returns non zero return value
  other than -1, then treat lstat() call to have been failed and return -1
  itself. This might happen if there is some bug in the backend filesystem.

Change-Id: Ie23787f6c838f14f92edadad71b83471e3d22289
BUG: 864401
Signed-off-by: Raghavendra Bhat 
Reviewed-on: http://review.gluster.org/4054
Tested-by: Gluster Build System 
Reviewed-by: Anand Avati

Fixed some general typing errors.

2012-09-27T18:22:34+00:00

Eg: changed recieved to received

Change-Id: I360fcb99c97c8a0222e373fee20ea2fccfb938db
BUG: 860543
Signed-off-by: Varun Shastry 
Reviewed-on: http://review.gluster.org/3999
Tested-by: Gluster Build System 
Reviewed-by: Vijay Bellur

storage/posix: Option to set brick(of a volume)'s root dir's uid/gid

2012-09-14T08:29:27+00:00

CLI
---
gluster volume set VOLNAME owner-uid uid
gluster volume set VOLNAME owner-gid gid
where uid,gid are the owner's user id and group id respectively that
would be set on the root of all brick (backend) fs.

TODO: uid/gid should not be -1. Today we don't validate that in CLI.

Change-Id: Ib6a2fb5e404691c5fe105a89faaeff3e1ab72e91
BUG: 853842
Signed-off-by: Krishnan Parthasarathi 
Reviewed-on: http://review.gluster.org/3939
Tested-by: Gluster Build System 
Reviewed-by: Anand Avati

storage/posix: implement native linux AIO support

2012-08-27T15:08:45+00:00

Configurable via cli with "storage.linux-aio" settable option
Backported Avati's patch http://review.gluster.org/#change,3627

BUG: 837495
Change-Id: Ia7c26f5734d34d341debd422a5c59bba31eef844
Signed-off-by: shishir gowda 
Reviewed-on: http://review.gluster.org/3849
Tested-by: Gluster Build System 
Reviewed-by: Amar Tumballi 
Reviewed-by: Vijay Bellur

cluster/dht: Optimize readdirp calls in DHT

2012-08-17T05:25:17+00:00

Bring in option which is supported by posix xlator
to filter out directory's entries from being returned.
DHT would now request non-first subvols to filter out
directory entries.

dht xlator-option readdir-optimize will enable this
optimization

Change-Id: Ibf99f1bef501f285ff44a1cecfbebee9e16063b6
BUG: 838199
Signed-off-by: shishir gowda 
Reviewed-on: http://review.gluster.com/3806
Tested-by: Gluster Build System 
Reviewed-by: Vijay Bellur

storage/posix: handle getxattr failures gracefully

2012-07-18T08:10:44+00:00

Use proper variable types for getting return value of getxattr calls,
which otherwise can lead to segfaulting of processes or page allocation
failures in the kernel.

Change-Id: Idc41b4022401c238d17ba357648234f7c2d56c87
BUG: 838195
Signed-off-by: Raghavendra Bhat 
Reviewed-on: http://review.gluster.com/3658
Tested-by: Gluster Build System 
Reviewed-by: Vijay Bellur

cluster/stripe: implement the coalesce stripe file format

2012-07-16T04:39:39+00:00

The coalesce file format for cluster/stripe condenses the striped
files to a contiguous layout. The elimination of holes in striped
files eliminates space wasted via local filesystem preallocation
heuristics and significantly improves read performance.

Coalesce mode is implemented with a new 'coalesce' xlator option,
which is user-configurable and disabled by default. The format of
newly created files is marked with a new 'stripe-coalesce' xattr.
Cluster/stripe handles/preserves the format of files regardless
of the current mode of operation (i.e., a volume can
simultaneously consist of coalesced and non-coalesced files).
Files without the stripe-coalesce attribute are assumed to have
the traditional format to provide backward compatibility.

extras/stripe-merge: support traditional and coalesce stripe formats

Update the stripe-merge recovery tool to handle the traditional
and coalesced file formats. The format of the file is detected
automatically (and verified) via the stripe-coalesce attributes.

BUG: 801887
Change-Id: I682f0b4e819f496ddb68c9a01c4de4688280fdf8
Signed-off-by: Brian Foster 
Reviewed-on: http://review.gluster.com/3639
Tested-by: Gluster Build System 
Reviewed-by: Amar Tumballi

Use linkat(2) for symlink to get portable behavior

2012-07-13T21:07:39+00:00

This is a backport of Change-Id: If7f6f17b48a4ccf8827c3795ec147306df6b5542

BUG: 764655
Change-Id: I374aca5d72d003d67a2bdc9a22b88ce7dd412a0d
Signed-off-by: Emmanuel Dreyfus 
Reviewed-on: http://review.gluster.com/3580
Tested-by: Gluster Build System 
Reviewed-by: Anand Avati

storage/posix: readdirp enhancements

2012-05-30T06:03:52+00:00

- avoid multiple calls to posix_istat(). use cheaper posix_pstat()
- code re-org

Change-Id: I4a2e32626ade49b7d18158952849c6fe7bd6875c
BUG: 816140
Reviewed-on: http://review.gluster.com/3488
Tested-by: Gluster Build System 
Reviewed-by: Anand Avati

iobuf: option to provide larger size of buffers

2012-05-04T04:54:54+00:00

provide an option to failover to standard allocation if iobuf of
required size doesn't exists. this can be achieved by keeping an
arena dedicated for all the out of boundary allocations.

Change-Id: I41a2bd7d353dc7bcb2e1a6e4b41735afe9865975
Signed-off-by: Amar Tumballi 
BUG: 812784
Reviewed-on: http://review.gluster.com/3136
Tested-by: Gluster Build System 
Reviewed-by: Anand Avati