]> www.infradead.org Git - users/jedix/linux-maple.git/commit
dtrace: increase instruction limit for FBT entry probe detection
authorKris Van Hees <kris.van.hees@oracle.com>
Thu, 18 Jan 2018 22:56:56 +0000 (17:56 -0500)
committerKris Van Hees <kris.van.hees@oracle.com>
Wed, 28 Feb 2018 06:47:24 +0000 (01:47 -0500)
commit6b2806555e146606ed6539c2ab7d1871d1ddaef8
tree725edfd42f90a04c2565e161c364a062fbc1fd8e
parent9953861f1708f203ea057a382212a3310b4e5a45
dtrace: increase instruction limit for FBT entry probe detection

The logic used to detect whether we can place a FBT entry probe on
a function has a limit on how many instructions should be looked
at.  With the occurrence of longer function prologues, that limit
must be increased.  This commit changes it from 2 to 10.

Orabug: 27410742
Signed-off-by: Kris Van Hees <kris.van.hees@oracle.com>
Reviewed-by: Tomas Jedlicka <tomas.jedlicka@oracle.com>
Reviewed-by: Alan Maguire <alan.maguire@oracle.com>
arch/x86/kernel/dtrace_fbt.c