CVS commit: src/sys/uvm

["Taylor R Campbell" <riastradh%netbsd.org@localhost>]

Module Name:    src
Committed By:   riastradh
Date:           Wed Aug 14 01:26:25 UTC 2024

Modified Files:
        src/sys/uvm: uvm_map.c

Log Message:
uvm_map(9): Take vm map lock around uvm_unmap_remove.

This was tripping one of the assertions I added.  While it is safe
here not to hold the lock -- caller has exclusive access to the map
at this point -- it is better if we can annotate the functions in
question with executable notes about locking rules, and taking a
single uncontended lock in the vm map destruction path is probably a
tiny cost worth those executable notes.

PR kern/51254: uvm assertion "!topdown || hint <= orig_hint" failed


To generate a diff of this commit:
cvs rdiff -u -r1.420 -r1.421 src/sys/uvm/uvm_map.c

Please note that diffs are not public domain; they are subject to the
copyright notices on the relevant files.