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| author | Juan Gutierrez <jgutierrez@ti.com> | 2011-09-06 09:30:16 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@suse.de> | 2011-11-11 09:36:31 -0800 |
| commit | b323615a633b4ac47834844f330f9cc329aeaf2b (patch) | |
| tree | b5649d1c3dee0d728e238bd95e6bc416615de517 /Documentation/intel_txt.txt | |
| parent | 044ee31ce0a51153f27a9d8c55ea12db32e59667 (diff) | |
| download | kernel_samsung_smdk4412-b323615a633b4ac47834844f330f9cc329aeaf2b.zip kernel_samsung_smdk4412-b323615a633b4ac47834844f330f9cc329aeaf2b.tar.gz kernel_samsung_smdk4412-b323615a633b4ac47834844f330f9cc329aeaf2b.tar.bz2 | |
hwspinlock/core: use a mutex to protect the radix tree
commit 93b465c2e186d96fb90012ba0f9372eb9952e732 upstream.
Since we're using non-atomic radix tree allocations, we
should be protecting the tree using a mutex and not a
spinlock.
Non-atomic allocations and process context locking is good enough,
as the tree is manipulated only when locks are registered/
unregistered/requested/freed.
The locks themselves are still protected by spinlocks of course,
and mutexes are not involved in the locking/unlocking paths.
Signed-off-by: Juan Gutierrez <jgutierrez@ti.com>
[ohad@wizery.com: rewrite the commit log, #include mutex.h, add minor
commentary]
[ohad@wizery.com: update register/unregister parts in hwspinlock.txt]
Signed-off-by: Ohad Ben-Cohen <ohad@wizery.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'Documentation/intel_txt.txt')
0 files changed, 0 insertions, 0 deletions