search for: find_delalloc_rang

This patch makes us cache the extent state we find in find_delalloc_range since we''ll have to lock the extent later on in the function. This will keep us from re-searching for the rang when we try to lock the extent. Signed-off-by: Josef Bacik <josef@redhat.com> --- fs/btrfs/extent_io.c | 11 ++++++++--- 1 files changed, 8 insertions(+), 3 deletions(...

...ax bytes to a single page and re loop. However if our first page is inside of the delalloc range then we will end up limiting the end of the range to a period before our first page. This is illustrated below [0 -------- delalloc range --------- 256mb] [page] So find_delalloc_range will return with delalloc_start as 0 and end as 128mb, and then we will notice that delalloc_start < *start and adjust it up, but not adjust delalloc_end up, so things go sideways. To fix this we need to not limit the max bytes in find_delalloc_range, but in find_lock_delalloc_range and that w...