Name
filemap_range_has_page —
check if a page exists in range.
Synopsis
bool filemap_range_has_page ( | struct address_space * mapping, |
| loff_t start_byte, |
| loff_t end_byte) ; |
Arguments
mapping
address space within which to check
start_byte
offset in bytes where the range starts
end_byte
offset in bytes where the range ends (inclusive)
Description
Find at least one page in the range supplied, usually used to check if
direct writing in this range will trigger a writeback.