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authorBrian Foster <bfoster@redhat.com>2013-05-08 08:54:11 -0400
committerAnand Avati <avati@redhat.com>2013-06-13 14:37:21 -0700
commitd1ccc4e400728d90f2ef7904661f53deb7199123 (patch)
tree1c491d1932795d85941861fa683431ee22608668 /xlators/features/marker/src
parent328ea4b16a276b0e65ca719f60b82ce851dda848 (diff)
gluster: add fallocate fop support
Implement support for the fallocate file operation. fallocate allocates blocks for a particular inode such that future writes to the associated region of the file are guaranteed not to fail with ENOSPC. This patch adds fallocate support to the following areas: - libglusterfs - mount/fuse - io-stats - performance/md-cache,open-behind - quota - cluster/afr,dht,stripe - rpc/xdr - protocol/client,server - io-threads - marker - storage/posix - libgfapi BUG: 949242 Change-Id: Ice8e61351f9d6115c5df68768bc844abbf0ce8bd Signed-off-by: Brian Foster <bfoster@redhat.com> Reviewed-on: http://review.gluster.org/4969 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Anand Avati <avati@redhat.com>
Diffstat (limited to 'xlators/features/marker/src')
-rw-r--r--xlators/features/marker/src/marker.c69
1 files changed, 69 insertions, 0 deletions
diff --git a/xlators/features/marker/src/marker.c b/xlators/features/marker/src/marker.c
index 82d9066d515..2dc03f93195 100644
--- a/xlators/features/marker/src/marker.c
+++ b/xlators/features/marker/src/marker.c
@@ -1808,6 +1808,74 @@ err:
}
+int32_t
+marker_fallocate_cbk (call_frame_t *frame, void *cookie, xlator_t *this,
+ int32_t op_ret, int32_t op_errno, struct iatt *prebuf,
+ struct iatt *postbuf, dict_t *xdata)
+{
+ marker_local_t *local = NULL;
+ marker_conf_t *priv = NULL;
+
+ if (op_ret == -1) {
+ gf_log (this->name, GF_LOG_TRACE, "%s occurred while "
+ "fallocating a file ", strerror (op_errno));
+ }
+
+ local = (marker_local_t *) frame->local;
+
+ frame->local = NULL;
+
+ STACK_UNWIND_STRICT (fallocate, frame, op_ret, op_errno, prebuf,
+ postbuf, xdata);
+
+ if (op_ret == -1 || local == NULL)
+ goto out;
+
+ priv = this->private;
+
+ if (priv->feature_enabled & GF_QUOTA)
+ mq_initiate_quota_txn (this, &local->loc);
+
+ if (priv->feature_enabled & GF_XTIME)
+ marker_xtime_update_marks (this, local);
+out:
+ marker_local_unref (local);
+
+ return 0;
+}
+
+int32_t
+marker_fallocate(call_frame_t *frame, xlator_t *this, fd_t *fd, int32_t mode,
+ off_t offset, size_t len, dict_t *xdata)
+{
+ int32_t ret = 0;
+ marker_local_t *local = NULL;
+ marker_conf_t *priv = NULL;
+
+ priv = this->private;
+
+ if (priv->feature_enabled == 0)
+ goto wind;
+
+ local = mem_get0 (this->local_pool);
+
+ MARKER_INIT_LOCAL (frame, local);
+
+ ret = marker_inode_loc_fill (fd->inode, &local->loc);
+
+ if (ret == -1)
+ goto err;
+wind:
+ STACK_WIND (frame, marker_fallocate_cbk, FIRST_CHILD(this),
+ FIRST_CHILD(this)->fops->fallocate, fd, mode, offset, len,
+ xdata);
+ return 0;
+err:
+ STACK_UNWIND_STRICT (fallocate, frame, -1, ENOMEM, NULL, NULL, NULL);
+
+ return 0;
+}
+
/* when a call from the special client is received on
* key trusted.glusterfs.volume-mark with value "RESET"
* or if the value is 0length, update the change the
@@ -2617,6 +2685,7 @@ struct xlator_fops fops = {
.removexattr = marker_removexattr,
.getxattr = marker_getxattr,
.readdirp = marker_readdirp,
+ .fallocate = marker_fallocate,
};
struct xlator_cbks cbks = {