linux-toradex.git/fs/nilfs2/segbuf.h, branch v3.10.92

nilfs2: get rid of macros for segment summary information

2010-07-23T01:02:09+00:00

This removes macros to test segment summary flags and redefines a few
relevant macros with inline functions.

Signed-off-by: Ryusuke Konishi

nilfs2: remove obsolete declarations of cache constructor and destructor

2010-05-31T11:50:29+00:00

The commit 41c88bd7 ("nilfs2: cleanup multi
kmem_cache_{create,destroy} code") consolidated slab constructors and
destructors used in nilfs, but it left some declarations in header
files.

This gets rid of the obsolete declarations.

Signed-off-by: Ryusuke Konishi

nilfs2: insert checkpoint number in segment summary header

2010-05-10T02:32:31+00:00

This adds a field to record the latest checkpoint number in the
nilfs_segment_summary structure.  This will help to recover the latest
checkpoint number from logs on disk.  This field is intended for
crucial cases in which super blocks have lost pointer to the latest
log.

Even though this will change the disk format, both backward and
forward compatibility is preserved by a size field prepared in the
segment summary header.

Signed-off-by: Ryusuke Konishi

nilfs2: cleanup multi kmem_cache_{create,destroy} code

2010-05-10T02:32:30+00:00

This cleanup patch gives several improvements:

 - Moving all kmem_cache_{create_destroy} calls into one place, which removes
 some small function calls, cleans up error check code and clarify the logic.

 - Mark all initial code in __init section.

 - Remove some very obvious comments.

 - Adjust some declarations.

 - Fix some space-tab issues.

Signed-off-by: Li Hong 
Signed-off-by: Ryusuke Konishi

nilfs2: move out checksum routines to segment buffer code

2010-05-10T02:32:30+00:00

This moves out checksum routines in log writer to segbuf.c for
cleanup.

Signed-off-by: Ryusuke Konishi

nilfs2: move pointer to super root block into logs

2010-05-10T02:32:30+00:00

This moves a pointer to buffer storing super root block to each log
buffer from nilfs_sc_info struct for simplicity.

Signed-off-by: Ryusuke Konishi

nilfs2: move iterator to write log into segment buffer

2010-02-13T03:26:03+00:00

This moves iterator to submit write requests for a series of logs into
segbuf.c, and hides nilfs_segbuf_write() and nilfs_segbuf_wait() in
the file.

Signed-off-by: Ryusuke Konishi

nilfs2: separate wait function from nilfs_segctor_write

2009-11-30T12:17:52+00:00

This separates wait function for submitted logs from the write
function nilfs_segctor_write().  A new list of segment buffers
"sc_write_logs" is added to hold logs under writing, and double
buffering is partially applied to hide io latency.

At this point, the double buffering is disabled for blocksize <
pagesize because page dirty flag is turned off during write and dirty
buffers are not properly collected for pages crossing over segments.

To receive full benefit of the double buffering, further refinement is
needed to move the io wait outside the lock section of log writer.

Signed-off-by: Ryusuke Konishi

nilfs2: add iterator for segment buffers

2009-11-30T12:06:35+00:00

This adds a few iterator functions for segment buffers to make it easy
to handle multiple series of logs.

Signed-off-by: Ryusuke Konishi

nilfs2: hide nilfs_write_info struct in segment buffer code

2009-11-30T12:06:35+00:00

Hides nilfs_write_info struct and nilfs_segbuf_prepare_write function
in segbuf.c to simplify the interface of nilfs_segbuf_write function.

Signed-off-by: Ryusuke Konishi