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SubjectRe: [PATCH 0/3] fs: Introduce FALLOC_FL_INSERT_RANGE for fallocate
On Mon, Mar 31, 2014 at 11:53:31PM +0900, Namjae Jeon wrote:
> This flag will work opposite to the newly added FALLOC_FL_COLLAPSE_RANGE flag.
> As such, specifying FALLOC_FL_INSERT_RANGE flag will insert zeroed-out space
> in between the file within the range specified by offset and len. User can
> write new data in this space. e.g. ads.
> Like collapse range, currently we have the limitation that offset and len
> should be block size aligned for both XFS and Ext4.

Btw, I remember Samsung also had an ioctl for XFS to split a file into
two without moving the data, do you plan to submit that one as well?



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