CVS log for src/sys/kern/subr_xcall.c

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Default branch: MAIN
Current tag: HEAD

Revision 1.38 / (download) - annotate - [select for diffs], Fri Mar 1 04:32:38 2024 UTC (6 weeks, 4 days ago) by mrg
Branch: MAIN
CVS Tags: HEAD
Changes since 1.37: +9 -2 lines
Diff to previous 1.37 (colored)

check that l_nopreempt (preemption count) doesn't change after callbacks

check that the idle loop, soft interrupt handlers, workqueue, and xcall
callbacks do not modify the preemption count, in most cases, knowing it
should be 0 currently.

this work was originally done by simonb.  cleaned up slightly and some
minor enhancement made by myself, and with discussion with riastradh@.

other callback call sites could check this as well (such as MD interrupt
handlers, or really anything that includes a callback registration.  x86
version to be commited separately.)

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