lwn.git/fs/ocfs2/ioctl.c, branch v3.4.62

get rid of pointless includes of ext2_fs.h

2012-03-31T20:03:15+00:00

Signed-off-by: Al Viro

vfs: mnt_drop_write_file()

2012-01-04T03:52:40+00:00

new helper (wrapper around mnt_drop_write()) to be used in pair with mnt_want_write_file(). Signed-off-by: Al Viro

switch a bunch of places to mnt_want_write_file()

2012-01-04T03:52:35+00:00

it's both faster (in case when file has been opened for write) and cleaner. Signed-off-by: Al Viro

ocfs2: Commit transactions in error cases -v2

2011-11-17T09:46:47+00:00

There are three cases found that in error cases, journal transactions are not committed nor aborted. We should take care of these case by committing the transactions. Otherwise, there would left a journal handle which will lead to , in same process context, the comming ocfs2_start_trans() gets wrong credits. Signed-off-by: Wengang Wang Signed-off-by: Joel Becker

ocfs2: null deref on allocation error

2011-06-01T02:03:45+00:00

The original code had a null derefence in the error handling. Signed-off-by: Dan Carpenter Signed-off-by: Joel Becker

Merge branch 'move_extents' of git://oss.oracle.com/git/tye/linux-2.6 into ocfs2-merge-window

2011-05-26T04:51:55+00:00

Conflicts: fs/ocfs2/ioctl.c

Ocfs2/move_extents: move/defrag extents within a certain range.

2011-05-25T07:17:12+00:00

the basic logic of moving extents for a file is pretty like punching-hole sequence, walk the extents within the range as user specified, calculating an appropriate len to defrag/move, then let ocfs2_defrag/move_extent() to do the actual moving. This func ends up setting 'OCFS2_MOVE_EXT_FL_COMPLETE' to userpace if operation gets done successfully. Signed-off-by: Tristan Ye

Ocfs2: Add a new code 'OCFS2_INFO_FREEFRAG' for o2info ioctl.

2011-05-25T04:18:07+00:00

This new code is a bit more complicated than former ones, the goal is to show user all statistics required to take a deep insight into filesystem on how the disk is being fragmentaed. The goal is achieved by scaning global bitmap from (cluster)group to group to figure out following factors in the filesystem: - How many free chunks in a fixed size as user requested. - How many real free chunks in all size. - Min/Max/Avg size(in) clusters of free chunks. - How do free chunks distribute(in size) in terms of a histogram, just like following: --------------------------------------------------------- Extent Size Range : Free extents Free Clusters Percent 32K... 64K- : 1 1 0.00% 1M... 2M- : 9 288 0.03% 8M... 16M- : 2 831 0.09% 32M... 64M- : 1 2047 0.23% 128M... 256M- : 1 8191 0.92% 256M... 512M- : 2 21706 2.43% 512M... 1024M- : 27 858623 96.29% --------------------------------------------------------- Userspace ioctl() call eventually gets the above info returned by passing a 'struct ocfs2_info_freefrag' with the chunk_size being specified first. Signed-off-by: Tristan Ye

Ocfs2: Add a new code 'OCFS2_INFO_FREEINODE' for o2info ioctl.

2011-05-25T04:18:02+00:00

The new code is dedicated to calculate free inodes number of all inode_allocs, then return the info to userpace in terms of an array. Specially, flag 'OCFS2_INFO_FL_NON_COHERENT', manipulated by '--cluster-coherent' from userspace, is now going to be involved. setting the flag on means no cluster coherency considered, usually, userspace tools choose none-coherency strategy by default for the sake of performace. Signed-off-by: Tristan Ye

Ocfs2: Using inline funcs to set/clear FILLED flags in info handler.

2011-05-25T04:17:18+00:00

It just removes some macros for the sake of typechecking gains. Signed-off-by: Tristan Ye