Date: Tue, 15 Oct 2024 13:51:18 GMT From: Mark Johnston <markj@FreeBSD.org> To: src-committers@FreeBSD.org, dev-commits-src-all@FreeBSD.org, dev-commits-src-branches@FreeBSD.org Subject: git: 8a5a9dbf389e - stable/14 - vm_object: Widen the flags field Message-ID: <202410151351.49FDpIj1060857@gitrepo.freebsd.org>
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The branch stable/14 has been updated by markj: URL: https://cgit.FreeBSD.org/src/commit/?id=8a5a9dbf389e86d278764ababf2f1eb8ee276680 commit 8a5a9dbf389e86d278764ababf2f1eb8ee276680 Author: Mark Johnston <markj@FreeBSD.org> AuthorDate: 2024-10-06 13:07:31 +0000 Commit: Mark Johnston <markj@FreeBSD.org> CommitDate: 2024-10-15 13:45:28 +0000 vm_object: Widen the flags field Take advantage of a nearby 2-byte hole to avoid growing the struct. This way, only the offsets of "flags" and "pg_color" change. Bump __FreeBSD_version since some out-of-tree kernel modules may access these fields, though I haven't found any examples so far. Reviewed by: kib MFC after: 2 weeks Differential Revision: https://reviews.freebsd.org/D35905 (cherry picked from commit 9d52823bf1dfac237e58b5208299aaa5e2df42e9) --- sys/sys/param.h | 2 +- sys/vm/vm_object.h | 2 +- 2 files changed, 2 insertions(+), 2 deletions(-) diff --git a/sys/sys/param.h b/sys/sys/param.h index 697a96cca916..a900131fe8ec 100644 --- a/sys/sys/param.h +++ b/sys/sys/param.h @@ -75,7 +75,7 @@ * cannot include sys/param.h and should only be updated here. */ #undef __FreeBSD_version -#define __FreeBSD_version 1401502 +#define __FreeBSD_version 1401503 /* * __FreeBSD_kernel__ indicates that this system uses the kernel of FreeBSD, diff --git a/sys/vm/vm_object.h b/sys/vm/vm_object.h index 3e82a5dc7430..1d00bee603f6 100644 --- a/sys/vm/vm_object.h +++ b/sys/vm/vm_object.h @@ -110,8 +110,8 @@ struct vm_object { int shadow_count; /* how many objects that this is a shadow for */ vm_memattr_t memattr; /* default memory attribute for pages */ objtype_t type; /* type of pager */ - u_short flags; /* see below */ u_short pg_color; /* (c) color of first page in obj */ + u_int flags; /* see below */ blockcount_t paging_in_progress; /* (a) Paging (in or out) so don't collapse or destroy */ blockcount_t busy; /* (a) object is busy, disallow page busy. */ int resident_page_count; /* number of resident pages */
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