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| author | Davidlohr Bueso <dave@stgolabs.net> | 2015-02-23 03:20:09 +0100 |
|---|---|---|
| committer | Paul Moore <pmoore@redhat.com> | 2015-02-23 22:57:00 +0100 |
| commit | 5b28255278dd7e594c8dde317c2498b7dcbf900d (patch) | |
| tree | 62cf451d72fc542652da81f7d9555a52afc136ed /mm/sparse-vmemmap.c | |
| parent | audit: consolidate handling of mm->exe_file (diff) | |
| download | linux-5b28255278dd7e594c8dde317c2498b7dcbf900d.tar.xz linux-5b28255278dd7e594c8dde317c2498b7dcbf900d.zip | |
audit: reduce mmap_sem hold for mm->exe_file
The mm->exe_file is currently serialized with mmap_sem (shared)
in order to both safely (1) read the file and (2) audit it via
audit_log_d_path(). Good users will, on the other hand, make use
of the more standard get_mm_exe_file(), requiring only holding
the mmap_sem to read the value, and relying on reference counting
to make sure that the exe file won't dissapear underneath us.
Additionally, upon NULL return of get_mm_exe_file, we also call
audit_log_format(ab, " exe=(null)").
Signed-off-by: Davidlohr Bueso <dbueso@suse.de>
[PM: tweaked subject line]
Signed-off-by: Paul Moore <pmoore@redhat.com>
Diffstat (limited to 'mm/sparse-vmemmap.c')
0 files changed, 0 insertions, 0 deletions