[PATCH v5 0/5] fat: additions to support fat_fallocate

[PATCH v5 0/5] fat: additions to support fat_fallocate

[Namjae Jeon]

This patch set provides support for doing fallocate operation
on FAT filesystem.

v5:
 - change all routines to make ->i_disksize aligned by cluster size.
 - merge fat_bmap2() and fat_get_block_bmap(). 

v4:
 - ->i_disksize is aligned by block size in fill_inode.
 - use i_disksize when computing the number of cluster for fallocate.
 - make fat_get_block_bmap to avoid race issue.
 - use __fat_write_inode() with inode_needs_sync() in evict.

v3:
 - fix i_disksize and mmu_private comments(uninit/initialized)
 - remove unneeded condition in fat_bmap.
 - use mmu_private instead of fclus in fat_fallocate.
 - make function mark buffer new for block in fallocated region.
 - use flags for bmap.
 - use mmu_private instead of i_size in direct_IO.
 - use flags and remove i_mutex in bmap.
 - update vfat documentation.

v2:
 - remove a stary unlock(from Dan Carpenter)
 - check ->mmu_private and ->i_disksize to truncate uninitialized data.

Namjae Jeon (5):
 fat: add i_disksize to represent uninitialized size
 fat: add fat_fallocate operation
 fat: skip cluster allocation on fallocated region
 fat: permit to return phy block number by fibmap in fallocated region
 Documentation/filesystems/vfat.txt: update the limitation for fat fallocate

-- 
1.7.11-rc0

Re: [PATCH v5 0/5] fat: additions to support fat_fallocate

[Andrew Morton]

On Thu, 25 Sep 2014 14:30:57 +0900 Namjae Jeon <namjae.jeon@samsung.com> wrote:

> Namjae Jeon (5):
>  fat: add i_disksize to represent uninitialized size
>  fat: add fat_fallocate operation
>  fat: skip cluster allocation on fallocated region
>  fat: permit to return phy block number by fibmap in fallocated region
>  Documentation/filesystems/vfat.txt: update the limitation for fat fallocate

What happened to fat-zero-out-seek-range-on-_fat_get_block-v4.patch?

It would be nice to get this patchset wrapped up some time - it's been
over a year...

RE: [PATCH v5 0/5] fat: additions to support fat_fallocate

[Namjae Jeon]

> 
> > Namjae Jeon (5):
> >  fat: add i_disksize to represent uninitialized size
> >  fat: add fat_fallocate operation
> >  fat: skip cluster allocation on fallocated region
> >  fat: permit to return phy block number by fibmap in fallocated region
> >  Documentation/filesystems/vfat.txt: update the limitation for fat fallocate
> 
> What happened to fat-zero-out-seek-range-on-_fat_get_block-v4.patch?
> 
> It would be nice to get this patchset wrapped up some time - it's been
> over a year...
Hi Andrew,

Sorry that I didn't note definitely and it was late for rework..
Actually I didn't have any idea to fix remained issue and was involved
in some other works.

I have reworked all routines with i_disksize redefinition (cluster size aligned)
and also with changing the i_disksize definition fat-zero-out-seek-range-on-
_fat_get_block-v4.patch is no more needed as is. Also, the functionality served
more purpose with the naming skip cluster allocation on fallocated region.

Thanks!