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Make linprocfs(4) print a warning when there's not enough room to fill

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/proc/self/maps.

Submitted by:	dchagin (earlier version)
Reviewed by:	emaste (earlier version)
MFC after:	2 weeks
Sponsored by:	The FreeBSD Foundation
Differential Revision:	https://reviews.freebsd.org/D20576
This commit is contained in:
Edward Tomasz Napierala 2020-10-29 15:44:44 +00:00
parent b1497fb649
commit ad7b26ecdc
1 changed files with 4 additions and 0 deletions
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4
sys/compat/linprocfs/linprocfs.c
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@ -1252,6 +1252,10 @@ linprocfs_doprocmaps(PFS_FILL_ARGS)
*name ? " " : " ", *name ? " " : " ",
name name
); );
if (error == -1) {
linux_msg(td, "cannot fill /proc/self/maps; "
"consider bumping PFS_MAXBUFSIZ");
}
if (freename) if (freename)
free(freename, M_TEMP); free(freename, M_TEMP);
vm_map_lock_read(map); vm_map_lock_read(map);