The netfs debug macros test only whether netfs_debug is nonzero.
Consequently, selecting one debug point enables every entry, exit and
general debug message.
Documentation/filesystems/caching/fscache.rst and the NETFS_DEBUG
Kconfig help still describe /sys/module/netfs/parameters/debug as a
bitmask of per-stream function entry, exit and general debugging
points, and the fscache_*.c files still define FSCACHE_DEBUG_LEVEL,
but nothing has decoded either since the mask handling was dropped
when FS-Cache was folded into netfs.
Restore the per-level and per-point mask decoding. Files that do not
define FSCACHE_DEBUG_LEVEL, which includes the netfs core, fall under
the cache management stream, the same default the FS-Cache macros had.
Fixes: 915cd30cde ("netfs, fscache: Combine fscache with netfs")
Signed-off-by: Karl Mehltretter <kmehltretter@gmail.com>
Link: https://patch.msgid.link/20260905051738.11317-1-kmehltretter@gmail.com
Signed-off-by: Christian Brauner (Amutable) <brauner@kernel.org>
62400ce406