bcachefs: Break up io.c

More reorganization, this splits up io.c into
 - io_read.c
 - io_misc.c - fallocate, fpunch, truncate
 - io_write.c

Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
This commit is contained in:
Kent Overstreet 2023-09-10 18:05:17 -04:00
commit 1809b8cba7
36 changed files with 3510 additions and 3451 deletions