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authorBoris Brezillon <boris.brezillon@collabora.com>2020-11-01 18:40:16 +0100
committerBoris Brezillon <boris.brezillon@collabora.com>2020-11-03 09:21:52 +0100
commit7d2d6d01293e6d9b42a6cb410be4158571f7fe9d (patch)
tree6e84f668bfa351c9d31383e327e14202d8efaf03 /drivers/target/target_core_tpg.c
parentdcda7c28bff2662a44c0adaf87c08031bebeb7d8 (diff)
drm/panfrost: Fix a deadlock between the shrinker and madvise path
panfrost_ioctl_madvise() and panfrost_gem_purge() acquire the mappings and shmem locks in different orders, thus leading to a potential the mappings lock first. Fixes: bdefca2d8dc0 ("drm/panfrost: Add the panfrost_gem_mapping concept") Cc: <stable@vger.kernel.org> Cc: Christian Hewitt <christianshewitt@gmail.com> Reported-by: Christian Hewitt <christianshewitt@gmail.com> Signed-off-by: Boris Brezillon <boris.brezillon@collabora.com> Reviewed-by: Steven Price <steven.price@arm.com> Link: https://patchwork.freedesktop.org/patch/msgid/20201101174016.839110-1-boris.brezillon@collabora.com
Diffstat (limited to 'drivers/target/target_core_tpg.c')
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