search for: getlock

...document http://oss.oracle.com/projects/ocfs2/src/branches/ocfs2-1.2/dlmfs.txt for DLMFS. Theres one problem. The "O_NONBLOCK" option is not working. I have 2 nodes in my setup that have both mounted the /dlm as dlmfs and both have mounted a 5 GB OCFS2 test volume on FS SAN. I run the getlocks script below without O_NONBLOCK on node1 with a sleep of - eg - 30. Then I run - while the script is running on node1 - the same script on node2 the input appears on node2 as soon as the script has finished on node1. Thats what I expeced. If I run the getlocks script with O_NONBLOCK enabled, nod...

...to_read; int err = 0; - int loop = 0; u32 blocksize = BTRFS_I(diocb->inode)->root->sectorsize; /* expand lock region to include what we read to validate checksum */ @@ -450,42 +517,25 @@ static void btrfs_dio_read(struct btrfs_diocb *diocb) lockend = ALIGN(end, blocksize) - 1; getlock: - mutex_lock(&diocb->inode->i_mutex); + /* writeout everything we read for checksum or compressed extents */ + filemap_write_and_wait_range(diocb->inode->i_mapping, + diocb->lockstart, lockend); + lock_extent(io_tree, diocb->lockstart, lockend, GFP_NOFS); - /* ensure wri...

Greetings, We have purchased an IBM BladeCenter and I am in the process of testing Linux installation on these things (boot off SAN i.e. qla2300 driver, not using internal drives). My distro of choice is Debian, however, since I'm really not interested in trying to hand compile all the drivers, I decided to try CentOS (which I'm so far very impressed with). On boot, as with the