| commit | b87324d082d9d898e3c06b2a07a2b94b2430b8ba | |
| author | Catalin Marinas <catalin.marinas@arm.com> | |
| Tue, 7 Jul 2009 09:32:58 +0000 (7 10:32 +0100) | ||
| committer | Catalin Marinas <catalin.marinas@arm.com> | |
| Wed, 8 Jul 2009 13:25:13 +0000 (8 14:25 +0100) | ||
| tree | 23183d749d3267e3c3636fdc78e10ceb0cd10b1a | treesnapshot (tar.gz zip) |
| parent | 288c857d66a400ca4846dd700eb1c4820d738bb9 | commitdiff |
kmemleak: Do not acquire scan_mutex in kmemleak_open()
Initially, the scan_mutex was acquired in kmemleak_open() and released
in kmemleak_release() (corresponding to /sys/kernel/debug/kmemleak
operations). This was causing some lockdep reports when the file was
closed from a different task than the one opening it. This patch moves
the scan_mutex acquiring in kmemleak_write() or kmemleak_seq_start()
with releasing in kmemleak_seq_stop().
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Initially, the scan_mutex was acquired in kmemleak_open() and released
in kmemleak_release() (corresponding to /sys/kernel/debug/kmemleak
operations). This was causing some lockdep reports when the file was
closed from a different task than the one opening it. This patch moves
the scan_mutex acquiring in kmemleak_write() or kmemleak_seq_start()
with releasing in kmemleak_seq_stop().
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
| mm/kmemleak.c | diffblobblamehistory |