| commit | bac9f154acd175afdf702cb7d7f5de1254b4b119 | |
| author | Heiko Carstens <heiko.carstens@de.ibm.com> | |
| Wed, 26 May 2010 21:26:20 +0000 (26 23:26 +0200) | ||
| committer | Martin Schwidefsky <sky@mschwide.boeblingen.de.ibm.com> | |
| Wed, 26 May 2010 21:26:29 +0000 (26 23:26 +0200) | ||
| tree | 46a9dc8dc42336842fa9410504e5b07b00173ad2 | treesnapshot (tar.gz zip) |
| parent | 215b3096371907e5d866bb219be7ef3d5ce6c083 | commitdiff |
[S390] kprobes: forbid probing of stnsm/stosm/epsw
The probed instructions will be executed in a single stepped and irq
disabled context. Therefore the results of stnsm, stosm and epsw would
be wrong if probed.
So let's just disallow probing of these functions. If really needed a
fixup could be written for each of them, but I doubt it's worth it.
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
The probed instructions will be executed in a single stepped and irq
disabled context. Therefore the results of stnsm, stosm and epsw would
be wrong if probed.
So let's just disallow probing of these functions. If really needed a
fixup could be written for each of them, but I doubt it's worth it.
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
| arch/s390/kernel/kprobes.c | diffblobblamehistory |