SVNews r327286

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2017-12-28 13:23:13 - r327286 by kib (Konstantin Belousov)

Complete list of files affected by revision r327286:

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  History   Contents   Diff   MODIFY   /head/sys/fs/procfs/procfs_map.c  

Commit message:

Reuse kern_proc_vmmap_resident() for procfs_map resident count.

The existing algorithm in procfs_map() to calculate count of resident
pages in an entry is too primitive, resulting in too long run time for
large sparse mapping entries. Re-use the kern_proc_vmmap_resident()
from kern_proc.c which only looks at the existing pages in the

Also, this makes procfs to honor kern.proc_vmmap_skip_resident_count,
if user does not need this information.

Reported by: Glenn Weinberg <>
PR: 224532
No objections from: des (procfs maintainer)
Sponsored by: The FreeBSD Foundation
MFC after: 1 week
Differential revision:


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