linux.git/fs/ext3/file.c, branch v2.6.28

generic block based fiemap implementation

2008-10-03T21:32:43+00:00

Any block based fs (this patch includes ext3) just has to declare its own
fiemap() function and then call this generic function with its own
get_block_t. This works well for block based filesystems that will map
multiple contiguous blocks at one time, but will work for filesystems that
only map one block at a time, you will just end up with an "extent" for each
block. One gotcha is this will not play nicely where there is hole+data
after the EOF. This function will assume its hit the end of the data as soon
as it hits a hole after the EOF, so if there is any data past that it will
not pick that up. AFAIK no block based fs does this anyway, but its in the
comments of the function anyway just in case.

Signed-off-by: Josef Bacik 
Signed-off-by: Mark Fasheh 
Signed-off-by: "Theodore Ts'o" 
Cc: linux-fsdevel@vger.kernel.org

sendfile: remove .sendfile from filesystems that use generic_file_sendfile()

2007-07-10T06:04:13+00:00

They can use generic_file_splice_read() instead. Since sys_sendfile() now
prefers that, there should be no change in behaviour.

Signed-off-by: Jens Axboe

[PATCH] mark struct inode_operations const 1

2007-02-12T17:48:46+00:00

Many struct inode_operations in the kernel can be "const".  Marking them const
moves these to the .rodata section, which avoids false sharing with potential
dirty data.  In addition it'll catch accidental writes at compile time to
these shared resources.

Signed-off-by: Arjan van de Ven 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

[PATCH] ext3: change uses of f_{dentry, vfsmnt} to use f_path

2006-12-08T16:28:41+00:00

Change all the uses of f_{dentry,vfsmnt} to f_path.{dentry,mnt} in the ext3
filesystem.

Signed-off-by: Josef "Jeff" Sipek 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

[PATCH] Remove readv/writev methods and use aio_read/aio_write instead

2006-10-01T07:39:28+00:00

This patch removes readv() and writev() methods and replaces them with
aio_read()/aio_write() methods.

Signed-off-by: Badari Pulavarty 
Signed-off-by: Christoph Hellwig 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

[PATCH] Vectorize aio_read/aio_write fileop methods

2006-10-01T07:39:28+00:00

This patch vectorizes aio_read() and aio_write() methods to prepare for
collapsing all aio & vectored operations into one interface - which is
aio_read()/aio_write().

Signed-off-by: Badari Pulavarty 
Signed-off-by: Christoph Hellwig 
Cc: Michael Holzheu 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

[PATCH] BLOCK: Move the Ext3 device ioctl compat stuff to the Ext3 driver [try #6]

2006-09-30T18:52:29+00:00

Move the Ext3 device ioctl compat stuff from fs/compat_ioctl.c to the Ext3
driver so that the Ext3 header file doesn't need to be included.

Signed-Off-By: David Howells 
Signed-off-by: Jens Axboe

[PATCH] ext3 and jbd cleanup: remove whitespace

2006-09-27T15:26:09+00:00

Remove whitespace from ext3 and jbd, before we clone ext4.

Signed-off-by: Mingming Cao
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

[PATCH] Introduce sys_splice() system call

2006-03-30T20:28:18+00:00

This adds support for the sys_splice system call. Using a pipe as a
transport, it can connect to files or sockets (latter as output only).

From the splice.c comments:

   "splice": joining two ropes together by interweaving their strands.

   This is the "extended pipe" functionality, where a pipe is used as
   an arbitrary in-memory buffer. Think of a pipe as a small kernel
   buffer that you can use to transfer data from one end to the other.

   The traditional unix read/write is extended with a "splice()" operation
   that transfers data buffers to or from a pipe buffer.

   Named by Larry McVoy, original implementation from Linus, extended by
   Jens to support splicing to files and fixing the initial implementation
   bugs.

Signed-off-by: Jens Axboe 
Signed-off-by: Linus Torvalds

[PATCH] Make most file operations structs in fs/ const

2006-03-28T17:16:06+00:00

This is a conversion to make the various file_operations structs in fs/
const.  Basically a regexp job, with a few manual fixups

The goal is both to increase correctness (harder to accidentally write to
shared datastructures) and reducing the false sharing of cachelines with
things that get dirty in .data (while .rodata is nicely read only and thus
cache clean)

Signed-off-by: Arjan van de Ven 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds