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| author | Dmitry Kasatkin <d.kasatkin@samsung.com> | 2014-06-13 17:55:47 +0200 |
|---|---|---|
| committer | Mimi Zohar <zohar@linux.vnet.ibm.com> | 2014-07-17 15:35:09 +0200 |
| commit | 2c50b964823ebb7f0a098878c399ce859cd38e9e (patch) | |
| tree | 19c98e19c5059c5c9fbf8d33960df729354395b3 /security/yama | |
| parent | Merge branch 'stable-3.16' of git://git.infradead.org/users/pcmoore/selinux i... (diff) | |
| download | linux-2c50b964823ebb7f0a098878c399ce859cd38e9e.tar.xz linux-2c50b964823ebb7f0a098878c399ce859cd38e9e.zip | |
ima: remove unnecessary i_mutex locking from ima_rdwr_violation_check()
Before 2.6.39 inode->i_readcount was maintained by IMA. It was not atomic
and protected using spinlock. For 2.6.39, i_readcount was converted to
atomic and maintaining was moved VFS layer. Spinlock for some unclear
reason was replaced by i_mutex.
After analyzing the code, we came to conclusion that i_mutex locking is
unnecessary, especially when an IMA policy has not been defined.
This patch removes i_mutex locking from ima_rdwr_violation_check().
Signed-off-by: Dmitry Kasatkin <d.kasatkin@samsung.com>
Signed-off-by: Mimi Zohar <zohar@linux.vnet.ibm.com>
Diffstat (limited to 'security/yama')
0 files changed, 0 insertions, 0 deletions