glusterfs.git/xlators/cluster/dht/src/dht-linkfile.c, branch v3.5.7

core: remove GLUSTERFS_CREATE_MODE_KEY usage

2013-08-23T19:04:58+00:00

Change-Id: I23b8cb7223b91a55af1cd4214f61bbe0e87351f6
BUG: 952029
Signed-off-by: Amar Tumballi 
Reviewed-on: http://review.gluster.org/5683
Tested-by: Gluster Build System 
Reviewed-by: Anand Avati

dht: make linkfile creation mode explicitly get set

2013-07-31T20:31:20+00:00

Because of posix default_acl on parent directory, the mode
of linkfile can get masked with the mode in the default acl.

This breaks DHT integrity. So let the mode get explicitly reset
after mknod().

Change-Id: Ia7328e1ee7b4430bda308f9da293dba78405e081
BUG: 990410
Signed-off-by: Anand Avati 
Reviewed-on: http://review.gluster.org/5440
Reviewed-by: Amar Tumballi 
Tested-by: Gluster Build System 
Reviewed-by: Raghavendra Talur

cluster/dht: Fix non-regular file ownership during rebalance

2013-07-31T10:42:42+00:00

Currently non-regular files were created as root:root, and
their ownership never healed during rebalance process.

Also, in dht_linkfile_attr_heal, we have to heal the linkfiles
as default, as currently linkfiles are created as root:root.

That check existed, as earlier linkfiles were created as
frame->root->uid/gid

Change-Id: I6cd88361b81bdd500e15bc47b623f5db8eec88e9
BUG: 990154
Signed-off-by: shishir gowda 
Reviewed-on: http://review.gluster.org/5434
Tested-by: Gluster Build System 
Reviewed-by: Amar Tumballi 
Reviewed-by: Anand Avati

cluster/dht: Make sure loc has gfid

2013-06-11T01:45:48+00:00

Problem:
In some code paths neither loc->gfid nor loc->inode->gfid
is populated which leads to EINVAL for linkfile setattr
in dht_linkfile_attr_heal.

Fix:
Populate loc->gfid before dht_linkfile_attr_heal.

Change-Id: I062770e6f6eaead304eff1dae81f8588a3b97eed
BUG: 971805
Signed-off-by: Pranith Kumar K 
Reviewed-on: http://review.gluster.org/5178
Reviewed-by: Shishir Gowda 
Tested-by: Gluster Build System 
Reviewed-by: Vijay Bellur

cluster/dht: Prevent crash in dht_linkfile_lookup

2013-06-04T20:27:48+00:00

Assign local = frame->local before dereferencing
local->linkfile.linkfile_cbk. Additionally, fail if
op_ret is non_zero.

Change-Id: I96a2f34ba29887da9ccaae38a644431cf7c43265
BUG: 966858
Signed-off-by: shishir gowda 
Reviewed-on: http://review.gluster.org/5141
Reviewed-by: Amar Tumballi 
Tested-by: Gluster Build System

cluster/dht: Handle linkfile creation with EEXIST error

2013-05-31T13:44:11+00:00

If linkfile create fails with EEXISTS, then check if the file
is a linkfile for the same file. If not, return the error

Change-Id: Iab42db54422dea69de0049b5196365e65edadd91
BUG: 966858
Signed-off-by: shishir gowda 
Reviewed-on: http://review.gluster.org/5060
Tested-by: Gluster Build System 
Reviewed-by: Amar Tumballi 
Reviewed-by: Vijay Bellur

cluster/dht: Linkfiles creation with correct uid/gid

2013-05-31T13:15:15+00:00

If renames are done with different uid/gid (non-owners), then we would
end up with incorrect uid/gid.

The fix is to create linkfiles, and heal the uid/gid as root:root. This
preserves our notion of creation as root:root and heal the uid/gid as
root:root in all paths. Additionally, we need to consider uid/gid from
only src_cached subvol, and not from linkfiles.

rename is also done as root:root if done on linkfile, as setattr of ownership
on linkfile is done after the rename

Change-Id: Icb5d431dc42da9c02dfae81980e3fe769a47a274
BUG: 884597
Signed-off-by: shishir gowda 
Reviewed-on: http://review.gluster.org/4682
Tested-by: Gluster Build System 
Reviewed-by: Jeff Darcy

dht: make DHT xattr names configurable

2013-03-21T22:04:31+00:00

This is necessary to support "DHT over DHT" configurations, so that the
upper and lower instances of DHT don't step all over each other.  Why
would we even consider such a thing?  Because it gives us the ability to
do data tiering and rack-aware placement, either by themselves or as
complements to other functionality such as erasure codes or
deduplication which save space but cost performance.  By setting up the
top-level DHT to place data into one of several lower-level DHT pools
based on policy instead of pure elastic hashing, we get better
performance for 90% of accesses and better storage efficiency for 90% of
data, all for relatively low effort.

Change-Id: I72e65c29edfc80babf39f7a2a00090f4588c4070
BUG: 924265
Signed-off-by: Jeff Darcy 
Reviewed-on: http://review.gluster.org/4694
Tested-by: Gluster Build System 
Reviewed-by: Anand Avati

cluster/dht: Create linkfile with file uid/gid

2013-02-14T00:17:44+00:00

Currently, linkfile creation happens as root.

use uid/gid returned from _cbk (link/rename) to set the correct ownership of
the link files.

Also added test/dht.rc to implement common dht functions

Change-Id: Iecdcf52d89fed8286670ce430b9d19deebd27b8c
BUG: 884597
Signed-off-by: shishir gowda 
Reviewed-on: http://review.gluster.org/4304
Tested-by: Gluster Build System 
Reviewed-by: Anand Avati

license: dual license under GPLV2 and LGPLV3+

2012-05-11T05:06:16+00:00

Note that the license was not changed in any of the following:
	.../argp-standalone/...
        .../booster/...
        .../cli/...
        .../contrib/...
        .../extras/...
        .../glusterfsd/...
        .../glusterfs-hadoop/...
        .../mod_clusterfs/...
        .../scheduler/...
        .../swift/...

The license was not changed in any of the non-building xlators. The
license was not changed in any of the xlators that seemed — to me — to
be clearly server-side only, e.g. protocol/server

Note too that copyright was changed along with the license; I did
not change the copyright in files where the license did not change.

If you find any errors or ommissions please don't hesitate to let me know.

The complete list of files with the license change is:
	libglusterfs/src/byte-order.h
	libglusterfs/src/call-stub.c
	libglusterfs/src/call-stub.h
	libglusterfs/src/checksum.c
	libglusterfs/src/checksum.h
	libglusterfs/src/circ-buff.c
	libglusterfs/src/circ-buff.h
	libglusterfs/src/common-utils.c
	libglusterfs/src/common-utils.h
	libglusterfs/src/compat-errno.c
	libglusterfs/src/compat-errno.h
	libglusterfs/src/compat.c
	libglusterfs/src/compat.h
	libglusterfs/src/daemon.c
	libglusterfs/src/daemon.h
	libglusterfs/src/defaults.c
	libglusterfs/src/defaults.h
	libglusterfs/src/dict.c
	libglusterfs/src/dict.h
	libglusterfs/src/event-history.c
	libglusterfs/src/event-history.h
	libglusterfs/src/event.c
	libglusterfs/src/event.h
	libglusterfs/src/fd-lk.c
	libglusterfs/src/fd-lk.h
	libglusterfs/src/fd.c
	libglusterfs/src/fd.h
	libglusterfs/src/gf-dirent.c
	libglusterfs/src/gf-dirent.h
	libglusterfs/src/globals.c
	libglusterfs/src/globals.h
	libglusterfs/src/glusterfs.h
	libglusterfs/src/graph-print.c
	libglusterfs/src/graph-utils.h
	libglusterfs/src/graph.c
	libglusterfs/src/hashfn.c
	libglusterfs/src/hashfn.h
	libglusterfs/src/iatt.h
	libglusterfs/src/inode.c
	libglusterfs/src/inode.h
	libglusterfs/src/iobuf.c
	libglusterfs/src/iobuf.h
	libglusterfs/src/latency.c
	libglusterfs/src/latency.h
	libglusterfs/src/list.h
	libglusterfs/src/lkowner.h
	libglusterfs/src/locking.h
	libglusterfs/src/logging.c
	libglusterfs/src/logging.h
	libglusterfs/src/mem-pool.c
	libglusterfs/src/mem-pool.h
	libglusterfs/src/mem-types.h
	libglusterfs/src/options.c
	libglusterfs/src/options.h
	libglusterfs/src/rbthash.c
	libglusterfs/src/rbthash.h
	libglusterfs/src/run.c
	libglusterfs/src/run.h
	libglusterfs/src/scheduler.c
	libglusterfs/src/scheduler.h
	libglusterfs/src/stack.c
	libglusterfs/src/stack.h
	libglusterfs/src/statedump.c
	libglusterfs/src/statedump.h
	libglusterfs/src/syncop.c
	libglusterfs/src/syncop.h
	libglusterfs/src/syscall.c
	libglusterfs/src/syscall.h
	libglusterfs/src/timer.c
	libglusterfs/src/timer.h
	libglusterfs/src/trie.c
	libglusterfs/src/trie.h
	libglusterfs/src/xlator.c
	libglusterfs/src/xlator.h
	libglusterfsclient/src/libglusterfsclient-dentry.c
	libglusterfsclient/src/libglusterfsclient-internals.h
	libglusterfsclient/src/libglusterfsclient.c
	libglusterfsclient/src/libglusterfsclient.h
	rpc/rpc-lib/src/auth-glusterfs.c
	rpc/rpc-lib/src/auth-null.c
	rpc/rpc-lib/src/auth-unix.c
	rpc/rpc-lib/src/protocol-common.h
	rpc/rpc-lib/src/rpc-clnt.c
	rpc/rpc-lib/src/rpc-clnt.h
	rpc/rpc-lib/src/rpc-transport.c
	rpc/rpc-lib/src/rpc-transport.h
	rpc/rpc-lib/src/rpcsvc-auth.c
	rpc/rpc-lib/src/rpcsvc-common.h
	rpc/rpc-lib/src/rpcsvc.c
	rpc/rpc-lib/src/rpcsvc.h
	rpc/rpc-lib/src/xdr-common.h
	rpc/rpc-lib/src/xdr-rpc.c
	rpc/rpc-lib/src/xdr-rpc.h
	rpc/rpc-lib/src/xdr-rpcclnt.c
	rpc/rpc-lib/src/xdr-rpcclnt.h
	rpc/rpc-transport/rdma/src/name.c
	rpc/rpc-transport/rdma/src/name.h
	rpc/rpc-transport/rdma/src/rdma.c
	rpc/rpc-transport/rdma/src/rdma.h
	rpc/rpc-transport/socket/src/name.c
	rpc/rpc-transport/socket/src/name.h
	rpc/rpc-transport/socket/src/socket.c
	rpc/rpc-transport/socket/src/socket.h
	xlators/cluster/afr/src/afr-common.c
	xlators/cluster/afr/src/afr-dir-read.c
	xlators/cluster/afr/src/afr-dir-read.h
	xlators/cluster/afr/src/afr-dir-write.c
	xlators/cluster/afr/src/afr-dir-write.h
	xlators/cluster/afr/src/afr-inode-read.c
	xlators/cluster/afr/src/afr-inode-read.h
	xlators/cluster/afr/src/afr-inode-write.c
	xlators/cluster/afr/src/afr-inode-write.h
	xlators/cluster/afr/src/afr-lk-common.c
	xlators/cluster/afr/src/afr-mem-types.h
	xlators/cluster/afr/src/afr-open.c
	xlators/cluster/afr/src/afr-self-heal-algorithm.c
	xlators/cluster/afr/src/afr-self-heal-algorithm.h
	xlators/cluster/afr/src/afr-self-heal-common.c
	xlators/cluster/afr/src/afr-self-heal-common.h
	xlators/cluster/afr/src/afr-self-heal-data.c
	xlators/cluster/afr/src/afr-self-heal-entry.c
	xlators/cluster/afr/src/afr-self-heal-metadata.c
	xlators/cluster/afr/src/afr-self-heal.h
	xlators/cluster/afr/src/afr-self-heald.c
	xlators/cluster/afr/src/afr-self-heald.h
	xlators/cluster/afr/src/afr-transaction.c
	xlators/cluster/afr/src/afr-transaction.h
	xlators/cluster/afr/src/afr.c
	xlators/cluster/afr/src/afr.h
	xlators/cluster/afr/src/pump.c
	xlators/cluster/afr/src/pump.h
	xlators/cluster/dht/src/dht-common.c
	xlators/cluster/dht/src/dht-common.h
	xlators/cluster/dht/src/dht-diskusage.c
	xlators/cluster/dht/src/dht-hashfn.c
	xlators/cluster/dht/src/dht-helper.c
	xlators/cluster/dht/src/dht-inode-read.c
	xlators/cluster/dht/src/dht-inode-write.c
	xlators/cluster/dht/src/dht-layout.c
	xlators/cluster/dht/src/dht-linkfile.c
	xlators/cluster/dht/src/dht-mem-types.h
	xlators/cluster/dht/src/dht-rebalance.c
	xlators/cluster/dht/src/dht-rename.c
	xlators/cluster/dht/src/dht-selfheal.c
	xlators/cluster/dht/src/dht.c
	xlators/cluster/dht/src/nufa.c
	xlators/cluster/dht/src/switch.c
	xlators/cluster/stripe/src/stripe-helpers.c
	xlators/cluster/stripe/src/stripe-mem-types.h
	xlators/cluster/stripe/src/stripe.c
	xlators/cluster/stripe/src/stripe.h
	xlators/features/index/src/index-mem-types.h ¹
	xlators/features/index/src/index.c ¹
	xlators/features/index/src/index.h ¹
	xlators/performance/io-cache/src/io-cache.c
	xlators/performance/io-cache/src/io-cache.h
	xlators/performance/io-cache/src/ioc-inode.c
	xlators/performance/io-cache/src/ioc-mem-types.h
	xlators/performance/io-cache/src/page.c
	xlators/performance/io-threads/src/io-threads.c
	xlators/performance/io-threads/src/io-threads.h
	xlators/performance/io-threads/src/iot-mem-types.h
	xlators/performance/md-cache/src/md-cache-mem-types.h
	xlators/performance/md-cache/src/md-cache.c
	xlators/performance/quick-read/src/quick-read-mem-types.h
	xlators/performance/quick-read/src/quick-read.c
	xlators/performance/quick-read/src/quick-read.h
	xlators/performance/read-ahead/src/page.c
	xlators/performance/read-ahead/src/read-ahead-mem-types.h
	xlators/performance/read-ahead/src/read-ahead.c
	xlators/performance/read-ahead/src/read-ahead.h
	xlators/performance/symlink-cache/src/symlink-cache.c
	xlators/performance/write-behind/src/write-behind-mem-types.h
	xlators/performance/write-behind/src/write-behind.c
	xlators/protocol/auth/addr/src/addr.c ¹
	xlators/protocol/auth/login/src/login.c ¹
	xlators/protocol/client/src/client-callback.c
	xlators/protocol/client/src/client-handshake.c
	xlators/protocol/client/src/client-helpers.c
	xlators/protocol/client/src/client-lk.c
	xlators/protocol/client/src/client-mem-types.h
	xlators/protocol/client/src/client.c
	xlators/protocol/client/src/client.h
	xlators/protocol/client/src/client3_1-fops.c

¹ Copyright only, license reverted to original

Change-Id: If560e826c61b6b26f8b9af7bed6e4bcbaeba31a8
BUG: 820551
Signed-off-by: Kaleb KEITHLEY 
Reviewed-on: http://review.gluster.com/3304
Tested-by: Gluster Build System 
Reviewed-by: Vijay Bellur