From: Goldwyn Rodrigues
We replace the existing entry to the newly allocated one
in case of CoW. Also, we mark the entry as PAGECACHE_TAG_TOWRITE
so writeback marks this entry as writeprotected. This
helps us snapshots so new write pagefaults after snapshots
trigger a CoW.
Signed-off-by: Goldwyn
From: Goldwyn Rodrigues
We replace the existing entry to the newly allocated one
in case of CoW. Also, we mark the entry as PAGECACHE_TAG_TOWRITE
so writeback marks this entry as writeprotected. This
helps us snapshots so new write pagefaults after snapshots
trigger a CoW.
btrfs does not support
On Mon, Apr 29, 2019 at 12:26:41PM -0500, Goldwyn Rodrigues wrote:
> From: Goldwyn Rodrigues
>
> We replace the existing entry to the newly allocated one
> in case of CoW. Also, we mark the entry as PAGECACHE_TAG_TOWRITE
> so writeback marks this entry as writeprotected. This
> helps us snapshots
On Mon 29-04-19 12:26:41, Goldwyn Rodrigues wrote:
> From: Goldwyn Rodrigues
>
> We replace the existing entry to the newly allocated one
> in case of CoW. Also, we mark the entry as PAGECACHE_TAG_TOWRITE
> so writeback marks this entry as writeprotected. This
> helps us snapshots so new write pa
On Tue, Apr 16, 2019 at 11:41:46AM -0500, Goldwyn Rodrigues wrote:
> From: Goldwyn Rodrigues
>
> We replace the existing entry to the newly allocated one
> in case of CoW. Also, we mark the entry as PAGECACHE_TAG_TOWRITE
> so writeback marks this entry as writeprotected. This
> helps us snapshots