linux/fs/ocfs2/alloc.c, branch v3.0.71

ocfs2: ->l_next_free_req breakage on big-endian

2012-04-27T16:51:17Z

commit 3a251f04fe97c3d335b745c98e4b377e3c3899f2 upstream. It's le16, not le32... Signed-off-by: Al Viro Cc: Mark Fasheh Cc: Joel Becker Signed-off-by: Greg Kroah-Hartman

ocfs2: Add trace event for trim.

2011-05-24T06:37:20Z

Add the corresponding trace event for trim. Signed-off-by: Tao Ma Signed-off-by: Joel Becker

ocfs2: Add ocfs2_trim_fs for SSD trim support.

2011-05-24T06:37:18Z

Add ocfs2_trim_fs to support trimming freed clusters in the volume. A range will be given and all the freed clusters greater than minlen will be discarded to the block layer. Signed-off-by: Tao Ma Signed-off-by: Joel Becker

Fix common misspellings

2011-03-31T14:26:23Z

Fixes generated by 'codespell' and manually reviewed. Signed-off-by: Lucas De Marchi

ocfs2: Remove DISK_ALLOC from masklog.

2011-02-22T00:01:27Z

Since all 4 files, localalloc.c, suballoc.c, alloc.c and resize.c, which use DISK_ALLOC are changed to trace events, Remove masklog DISK_ALLOC totally. Signed-off-by: Tao Ma

ocfs2: Remove mlog(0) from fs/ocfs2/alloc.c

2011-02-22T00:21:10Z

This is the first try of replacing debug mlog(0,...) to trace events. Wengang has did some work in his original patch http://oss.oracle.com/pipermail/ocfs2-devel/2009-November/005513.html But he didn't finished it. So this patch removes all mlog(0,...) from alloc.c and adds the corresponding trace events. Different mlogs have different solutions. 1. Some are replaced with trace event directly. 2. Some are replaced and some new parameters are added since I think we need to know the btree owner in that case. 3. Some are combined into one trace events. 4. Some redundant mlogs are removed. What's more, it defines some event classes so that we can use them later. Cc: Wengang Wang Signed-off-by: Tao Ma

ocfs2: Remove EXIT from masklog.

2011-03-07T08:43:21Z

mlog_exit is used to record the exit status of a function. But because it is added in so many functions, if we enable it, the system logs get filled up quickly and cause too much I/O. So actually no one can open it for a production system or even for a test. This patch just try to remove it or change it. So: 1. if all the error paths already use mlog_errno, it is just removed. Otherwise, it will be replaced by mlog_errno. 2. if it is used to print some return value, it is replaced with mlog(0,...). mlog_exit_ptr is changed to mlog(0. All those mlog(0,...) will be replaced with trace events later. Signed-off-by: Tao Ma

ocfs2: Remove ENTRY from masklog.

2011-02-21T03:10:44Z

ENTRY is used to record the entry of a function. But because it is added in so many functions, if we enable it, the system logs get filled up quickly and cause too much I/O. So actually no one can open it for a production system or even for a test. So for mlog_entry_void, we just remove it. for mlog_entry(...), we replace it with mlog(0,...), and they will be replace by trace event later. Signed-off-by: Tao Ma

ocfs2: Remove unused truncate function from alloc.c

2011-01-08T02:03:00Z

Tristan Ye has done some refactoring against our truncate process, so some functions like ocfs2_prepare_truncate and ocfs2_free_truncate_context are no use and we'd better remove them. Signed-off-by: Tao Ma Signed-off-by: Joel Becker

ocfs2: Try to free truncate log when meeting ENOSPC in write.

2010-12-16T08:46:02Z

Recently, one of our colleagues meet with a problem that if we write/delete a 32mb files repeatly, we will get an ENOSPC in the end. And the corresponding bug is 1288. http://oss.oracle.com/bugzilla/show_bug.cgi?id=1288 The real problem is that although we have freed the clusters, they are in truncate log and they will be summed up so that we can free them once in a whole. So this patch just try to resolve it. In case we see -ENOSPC in ocfs2_write_begin_no_lock, we will check whether the truncate log has enough clusters for our need, if yes, we will try to flush the truncate log at that point and try again. This method is inspired by Mark Fasheh . Thanks. Cc: Mark Fasheh Signed-off-by: Tao Ma Signed-off-by: Joel Becker