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| author | Thomas Hellström <thomas.hellstrom@linux.intel.com> | 2026-05-08 18:09:20 +0200 |
|---|---|---|
| committer | Thomas Hellström <thomas.hellstrom@linux.intel.com> | 2026-05-14 13:12:57 +0200 |
| commit | 591711b32681a04b57d00c2a404658f8419a081c (patch) | |
| tree | 82efe7cc452f651e7acc288e35a4469efe15aa16 /tools/lib/python/kdoc | |
| parent | 84d1c9b416d54afe760ca4c378bd95c89261254c (diff) | |
| download | linux-591711b32681a04b57d00c2a404658f8419a081c.tar.gz linux-591711b32681a04b57d00c2a404658f8419a081c.zip | |
drm/ttm: Convert -EAGAIN from dmem_cgroup_try_charge to -ENOSPC
dmem_cgroup_try_charge() returns -EAGAIN when the cgroup limit is
hit and the charge fails. TTM has no concept of -EAGAIN from resource
allocation; -ENOSPC is the canonical error meaning "no space, try
eviction". Convert at the source in ttm_resource_alloc() so no caller
needs to handle an unexpected error code, and clean up the now-redundant
-EAGAIN check in ttm_bo_alloc_resource().
Without this, -EAGAIN escaping ttm_resource_alloc() during an eviction
walk causes the walk to terminate early instead of continuing to the
next candidate.
Cc: Friedrich Vock <friedrich.vock@gmx.de>
Cc: Maarten Lankhorst <dev@lankhorst.se>
Cc: Tejun Heo <tj@kernel.org>
Cc: Maxime Ripard <mripard@kernel.org>
Cc: Christian Koenig <christian.koenig@amd.com>
Cc: dri-devel@lists.freedesktop.org
Cc: <stable@vger.kernel.org> # v6.14+
Fixes: 2b624a2c1865 ("drm/ttm: Handle cgroup based eviction in TTM")
Assisted-by: GitHub_Copilot:claude-sonnet-4.6
Signed-off-by: Thomas Hellström <thomas.hellstrom@linux.intel.com>
Reviewed-by: Maarten Lankhorst <dev@lankhrost.se>
Link: https://patch.msgid.link/20260508160920.230339-1-thomas.hellstrom@linux.intel.com
Diffstat (limited to 'tools/lib/python/kdoc')
0 files changed, 0 insertions, 0 deletions