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[ Upstream commit4c831f3047] Since 5.10, splice() or sendfile() return EINVAL. This was caused by commit36e2c7421f("fs: don't allow splice read/write without explicit ops"). This patch initializes the splice_write field in file_operations, like most file systems do, to restore the functionality. Fixes:36e2c7421f("fs: don't allow splice read/write without explicit ops") Signed-off-by: Yangtao Li <frank.li@vivo.com> Reviewed-by: Viacheslav Dubeyko <slava@dubeyko.com> Signed-off-by: Viacheslav Dubeyko <slava@dubeyko.com> Link: https://lore.kernel.org/r/20250529140033.2296791-2-frank.li@vivo.com Signed-off-by: Viacheslav Dubeyko <slava@dubeyko.com> Signed-off-by: Sasha Levin <sashal@kernel.org>